- Public exhibition information -

Greeting

I would like to express my gratitude for your cooperation and support for Japan Broadcasting Corporation (NHK).

NHK started radio broadcasting in 1925, making this our 90th year. The Science & Technology Research Laboratories (STRL) were established in Setagaya Ward in 1930, five years after the start of radio broadcasting. Since then, STRL has continually focused on developing the most advanced technologies, and it has contributed to broadcasting technology in Japan and the world, through its pioneering efforts on satellite broadcasting, HDTV, digital broadcasting, and UHDTV.

One of the priority objectives in the“NHK Corporate Plan (FY2015-2017)”, released in January this year, is creating broadcasting and services that open up new possibilities, and it sets the goal of implementing broadcasting and services of the highest standard by the year 2020. This includes 8K Super Hi-Vision, creation of new services using the Internet, and promoting user-friendly broadcasting and services.

To maintain steady progress in implementing this corporate plan, NHK STRL has also released the“NHK STRL R&D plan (FY2015-2017),” for developing broadcasting technologies and services with higher quality and higher performance, emphasizing use of the Internet, 8K Super Hi-Vision, and 3D television, and providing overall support in areas of advanced program production technology and user-friendly broadcasting.

The theme of the NHK STRL Open House this year is,“Count down to the Ultimate TV!” We invite you to come and see our 26 exhibits, featuring 8K Super Hi-Vision, which will soon begin test satellite broadcasting in 2016, technologies integrating broadcasting and broadband seamlessly to provide diverse services, glasses-free 3D television technology, and user-friendly technologies such as weather forecasts in CG sign language.

I sincerely hope that you will continue to support our activities in the future.

May, 2015 Tor u Kuroda , Director of NHK Science & Technology Research Laboratories Floor Plan

1F 7F 12 F

Satellite Venues

Keynote Speech （Thu.）

Lecture From 1F (Thu.) From 1F

Reserch Presentation (Thu.) ５ 4 3 Experimentat workshops for Dining Room Children(Sat. Sun.)

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10 ８ 2 1 11 ７ 9

To 7F and 12F Guided Tours To BF Reception From BF (Sat. Sun.)

Auditorium 8K Super Hi-Vision Theatre （Fri.～Sun.） Keynote Speech（Thu.） Lecture(Thu.) Reseach Presentation(Thu.)

OUT IN Elevator Washroom

1 8K Satellite Broadcasting Experiment 3 Advances on Hybridcast Services for 8K Displays

1-1 8K Camera System 4 MMT, New Media Transport Technology

1-2 U-SDI - Signal Interface for 8K/4K Video and 5 Real-time Video Coding System with Super-resolution Reconstruction 22.2 Multichannel Audio- Program Contribution Technologies for Live Broadcasts of 1-3 8K Encoder and Decoder 6 8K 1-4 Advanced Conditional Access System 7 8K Recorder with 120-Hz Frame Rate

1-5 Advanced WideBand Satellite Transmission System 8 High-density Holographic Memory

1-6 New Closed Captioning and Character Superimposition 9 Longer Lifetime Technologies for Organic Light-emitting Diode Displays

1-7 Cable TV Transmission System for 8K Broadcasting 10 Laser-backlit Wide-gamut LCD and Color Gamut Mapping

2 Transmission Technologies for the Next Generation of 11 Full-specification 8K Projector Digital Terrestrial Broadcasting 19

18 BF

Elevator Washroom

16 17 20 21 22 23 24

15 25 26 14

26

13 12

Lounge From 1F To 1F

J Questionnaire ＆ M Lounge

H T1 T4 T3 T2

P Poster Exhibit

12 The New Media Player for MPEG-DASH, 25 Smart Close-up System and Contents Delivery Technologies 13 Synchronization Technology for Broadcast Programs and 26 Utilization and Development of NHK’s Technologies Internet Content 14 Bridging Broadcast and Internet Services M 90 Years of Radio Broadcasting

15 Advanced Program Viewing System Based on P Poster Exhibit Cloud Computing Technologies 16 Integral Three-dimensional Television T1 Let’s Make Faces!

17 Spatial Light Modulators Driven by Spin Transfer Switching T2 Let’s see if you can touch it!

18 22.2 Multi-channel Loudness Meter T3 How are colors made in an LCD television?

19 Multi-viewpoint Robotic Cameras T4 Let’s Put on a Sound Helmet! NHK HEART PLAZA 20 Video Bank to Enable More Efficient and Effective H Image Manipulation (only on 30st May and 31st May) 21 Bidirectional Digital FPU for Reliable High-speed Transmissions J Digital Broadcasting Reception Consultation Desk 22 Speech Recognition for Live Captioning Inarticulate Program Speech

23 Automatic Sign Language Animation System Using External Weather Data 24 Automatic Rewriting of News into Easy Japanese 8K 8K Satellite Broadcasting Experiment 1 Towards test broadcasting in 2016

Outline

NHK has been developing the production equipment and transmission technologies of 8K Super Hi-Vision (8K) broadcasting, including video and sound encoders, multiplexing devices, transmitters and receivers. The Ministry of Internal Affairs and Communications released the 8K broadcasting roadmap last year, which calls for 8K test broadcasting over satellite channels to begin in 2016. In response, we are accelerating our efforts to put 8K broadcasting to practical use. This exhibit features the devices to be used in the satellite test broadcasting ‒ from program production, coding, multiplexing, transmission and reception, to display.

Future plans

We are accelerating our R&D towards the goals of test broadcasting in 2016, start of broadcasting to the public by 2018 and widespread use of 8K by 2020, the year of the Tokyo Olympic and Paralympic Games.

Broadcasting satellite Camera system (Exhibit 1-1)

U-SDI Interface (Exhibit 1-2) Cable TV transmission system (Exhibit 1-7）

8K TV

Transmission Reception (Exhibit 1- 5) (Exhibit 1-5) Contribution Scrambling Descrambling transmission (Exhibit 1- 4) (Exhibit 1-4)

Multiplexing Demultiplexing Closed captioning (Exhibit 1- 6) Multichannel Coding Decoding 22.2ch sound microphone Recording (Exhibit 1-3) (Exhibit 1-3)

Overview of 8K satellite broadcasting experiment Production equipment

・ 8K camera system (Exhibit 1-1) Practical 8K camera system consisting of a compact camera and high-quality demosaicing processor ・ 8K video and sound signal interface :“U-SDI”(Exhibit 1-2) Interface to transmit 8K video and 22.2 multichannel sound signals over a single fiber optical cable ・ Millimeter-wave FPU for contribution transmission (Related Exhibit 6) FPU to transmit uncompressed 8K signals with low latency on 120-GHz-band radio waves ・ 8K recorder (Related Exhibit 7) Compression recorder capable of recording up to 180 minutes of 8K video in a high-speed and large-capacity memory pack ・ 22.2 multichannel sound production system (Related Exhibit 18) 22.2 multichannel spherical microphone, sound production mixing system and reverberator

Coding/decoding

・ 8K encoder and decoder (Exhibit 1-3) Encoder and decoder capable of compressing and transmitting 8K video and 22.2ch sound ・ Advanced conditional access system (CAS) technology (Exhibit 1-4) Scrambling device capable of real-time processing of 8K signals ・ 8K multiplexing device (Related Exhibit 4) MMT-based multiplexing device

Satellite transmission

・ Advanced wide band satellite transmission system (Exhibit 1-5) 8K satellite transmission system using 12-GHz-band broadcasting satellite

8K television

・ New closed captioning and character superimposition technology (Exhibit 1-6) New closed captioning and character superimposition technology using ARIB-TTML, a caption encoding scheme that enables a diverse range of expression ・ 8K wide-color-gamut LCD (Related Exhibit 10, 11) 8K LCD display that supports the wide color gamut specified by the ITU-R Recommendation BT.2020

Cable TV transmission

・ Cable TV transmission system for 8K broadcasting (Exhibit 1-7) Retransmission system on cable TV of 8K satellite broadcasting 8K 8K Camera System 1-1 Easy production of 8K video

Outline

We are continuing with our studies on 8K camera systems in preparation for the 8K test broadcasting. We have developed various cameras and a demosaicing*1 processor that makes a camera system for full-resolution 8K content production practical.

Features

◉ Various cameras supporting 8K broadcasting We have developed a wide variety of 8K cameras including: a dual-green*2 camera, which played an important role in covering the London Olympics and the 2014 FIFA World Cup; a theater camera that has high sensitivity and silent operation; and a compact single-chip camera. ◉ Demosaicing processor for converting dual-green format into full-resolution 8K video This processor converts 8K camera output in the dual-green format into full-resolution 8K video. Incorporation of technologies to estimate the local directional characteristics and to reduce the color artifacts have enabled real-time and high-quality conversion.

Future plans

We are going to use the cameras for shooting various 8K contents including sports and dramas by making the most of their compactness and high image quality.

*1 Demosaicing: A process to reconstruct a full color image from the incomplete color samples captured by single-chip cameras. *2 Dual-green: Green pixels are placed in a quincunx pattern, and red/blue pixels are placed in the remaining locations

High-quality video conversion by demosaicing processor (Real-time processing)

●Estimation of local directional characteristics Dual green camera ●Reduction of color artifacts

Dual-green Compact single signals Full-resolution signals chip camera

8K cameras and high-quality demosaicing processor 8K

U-SDI - Signal Interface for 8K/4K Video and 22.2 Multichannel Audio- 1-2 Technology for transmitting large-volume 8K signals over a single cable

Outline

We have developed an ultra high-definition interface,“U-SDI*1 ”, that can transmit full-specification 8K video signals, which have about 100 times the data volume of Hi-Vision, over a single cable. We have also developed a 22.2 multichannel sound multiplexing device that enables simultaneous transmission of video and sound signals for program production.

Features

◉ Optical interface to transmit a large volume of signals using a single cable Transmission of full-specification 8K signals (approx. 144 Gbps) previously required a lot of effort, including connecting about 100 coaxial cables. The U-SDI enables full-specification 8K signals to be transmitted over a single cable and makes it easy to connect production devices such as cameras and recorders by using an optical multicable and its unique signal mapping technology. ◉ 22.2 multichannel sound multiplexing device We have developed a device*2to multiplex 22.2 channel sound signals in the auxiliary spaces of video signal mapping. This technology makes it possible for the U-SDI, which previously could transmit only video, to handle sound as well as video. ◉ Towards an international standard This interface specification was adopted as a domestic standard*3 at the Association of Radio Industries and Businesses (ARIB) in March 2014. Since then, standardization efforts have been in progress at the Society of Motion Picture and Television Engineers (SMPTE) and the International Telecommunication Union Radiocommunications Sector (ITU-R).

Future plans

We are studying practical applications and ways to reduce the cost of devices equipped with this interface in preparation for the start of 8K broadcasting. We are also developing a method to transmit other data required for program production, such as time codes, and continuing with the international standardization effort.

*1 U-SDI： Ultrahigh-definition Signal/Data Interface *2 New device: The sound multiplexing technology was adopted as a domestic standard (ARIB STD-B64) in March 2015. *3 Domestic standard: ARIB STD-B58 “Interface for Ultra-High-Definition TV Production Systems”

U-SDI specifications Number of fibers in a cable 24 (12 columns x 2 rows) Total data rate 10.692Gbps×24 Transmission coding 8B10B Fiber type Multi-mode fiber U-SDI cable (left) and coaxial cable Connector locking Bayonet type for Hi-Vision (right)

17 mm Supported video format Pixel count 8K(7,680×4,320)、4K(3,840×2,160) 24＊,25,30＊,50,60＊,100,120 ＊Hz Frame frequency (* includes the value of 1/1.001) Color sampling 4:4:4、4:2:2、4:2:0

Connector unit and optical fiber Bit depth 10、12bit Appearance of cable and interface specifications 8K 8K Encoder and Decoder 1-3 For high-quality compressed transmission

Outline

We are researching technologies to efficiently compress and transmit 8K video and 22.2 multichannel (22.2 ch) sound while maintaining its high quality. We have developed an encoder and decoder that can compress and transmit video and audio using schemes compliant with both domestic and international standards.

Features

◉ New 8K video decoder We have developed an 8K video decoder that is compatible with the previous 8K video encoder using MPEG-H HEVC/H.265*1. The encoder and decoder enables real-time encoding and decoding of 8K video, which contains massive amounts of data. ◉ New 22.2 ch encoder/decoder and multiplexing capability We have developed an audio encoder/decoder using MPEG-4 AAC*2 supporting 22.2 ch sound and a multiplexing/demultiplexing capability using MPEG-H MMT*3 to combine and transmit compressed video and audio data. ◉ Compliant with domestic standard for 8K broadcasting The video coding, audio coding, and multiplexing schemes comply with the domestic standard ARIB STD-B32 ver. 3.1*4, which was revised in December 2014.

Future plans

We will verify the operation of the devices by conducting transmission experiments using an actual broadcasting satellite. We are also continuing with development of 8K video encoder/decoder capable of a 120-Hz frame frequency.

*1 MPEG-H HEVC (High Efficiency Video Coding)/H.265: Highly efficient video coding scheme suited for 8K/4K video, jointly standardized by ISO/IEC and ITU. *2 MPEG-4 AAC (Advanced Audio Coding): Audio coding scheme supporting 22.2 ch sound standardized by ISO/IEC. *3 MPEG-H MMT (MPEG Media Transport): Media transport scheme supporting various channels standardized by ISO/IEC in 2014. *4 ARIB STD-B32 ver. 3.1: “Video Coding, Audio Coding and Multiplexing Specifications for Digital Broadcasting”

Compress 8K video by HEVC/H.265 Demultiplex the MMT and 22.2 ch sound by MPEG-4 AAC data, and decode the 8K and multiplex the data by MMT video and 22.2 ch sound

8K video 8K video

8K encoder 8K decoder MMT output Transmission 22.2ch 22.2ch Microphone sound sound Monitor/ Frame loud speaker

Video coding, audio coding, Camera multiplexing schemes comply with domestic standard

8K encoder/decoder diagram 8K Advanced Conditional Access System 1- 4 High-performance scrambler for MMT streaming

Outline Broadcasting station We are researching the next generation of CAS*1 technology that provides rights protection and High-performance scrambler conditional access to content. We have capable of real-time developed a high-performance scrambler processing of 8K signals capable of real-time processing of 8K signals in compliance with ARIB*2 standards. for decryption Key distribution content Encryption of

Features

◉ Supports MMT*3, a new media transport method that makes it possible to deliver content by using both broadcasting and broadband. ◉ High security by employing a 128-bit block cipher in its scrambling scheme

*1 CAS: Conditional Access System *2 ARIB: Association of Radio Industries and Businesses *3 MMT (MPEG Media Transport): International standard 8K receiver media transport scheme supporting various channels

Advanced Wide Band Satellite Transmission System 1-5 Large-capacity transmission system for 8K broadcasting

Outline Broadcasting satellite We have been developing large-capacity satellite （BS-17ch） transmission technology for 8K broadcasting. We are conducting transmission experiments using a 12-GHz-band broadcasting satellite in anticipation of 8K test broadcasting starting in 2016. In this exhibit, signals are transmitted from the NHK Broadcast Center and received at NHK STRL via 17-GHz 12-GHz the actual broadcasting satellite. This system band band

1 3 5 7 9 11 13 15 17 19 21 23 ch ch ch ch ch ch ch ch ch ch ch ch

Features Existing BS digital system Frequency arrangement of ◉ 16APSK*1 modulation scheme that can transmit satellite broadcasting more information than existing schemes ◉ LDPC code that can improve error-correcting capability ◯This research is being conducted as part of a government-sponsored project of the Ministry of Internal Affairs and Communications, titled “Research & development of efficient use of frequency resource for ultra-high definition satellite and terrestrial broadcasting system”. NHK Broadcasting Center NHK STRL ○This system has been adopted as a ministerial ordinance, as well as an (Shibuya) announcement, and a standard*2 of the Association of Radio Industries and Business.

*1 16APSK (Amplitude and Phase Shift Keying): A modulation scheme that transmits four bits of information simultaneously by changing the amplitude and phase of the carrier in 16 different ways. *2 Standard: ARIB STD-B44 "Transmission System for Advanced Wide Band Digital Satellite Broadcasting" 8K

New Closed Captioning and Character Superimposition 1- 6 Closed-captioning system with diverse range of expression

Outline

Presentation using We are studying a new closed-captioning system receiver function for 8K broadcasting. This exhibit shows the new Character superimposition closed-captioning and character superimposition Character Image superimposition technology using an extended encoding scheme 1 ARIB-TTML encoding scheme based on TTML* . ・Text information ●Presentation with images (Style, position) ・Image, audio, font

Balloon Closed Features captioning Closed captioning

◉ Diverse forms of expression using images, audio and API ●Balloons and animation effects are available in addition animation as well as characters are made possible by to the presentation functions extending the W3C*2 recommendation for TTML 1.0. of current digital broadcasting ◉ In addition to fixed presentation by a built-in function Presentation by Timeline display of the receiver, received closed captions can be Hybridcast applications Subtitle

Subtitle Mika Miyazato Mika Miyazato easily decorated and displayed via Hybridcast hits her tee shot Real condition on 13 hits her tee shot

Center. Real condition applications. Reporter on 13 Center. ◉ The closed captions described by TTML can be also Reporter used for closed-captioning services for Internet Now, Kikuchi.

Real condition videos. ●Closed captions can be presented in different ways *1 TTML (Timed Text Markup Language): A markup language that can and used as metadata through Hybridcast applications. specify the timing and layout of text display. *2 W3C (World Wide Web Consortium): An international organization promoting the standardization of technologies used on the web.

Cable TV Transmission System for 8K Broadcasting 1-7 For retransmission of 8K satellite broadcasting via cable TV networks

Outline

This exhibit shows a cable TV retransmission system Cable TV station for the 8K test broadcasts starting in 2016. The system enables 8K signals with 16 times the volume Cable TV of information of Hi-Vision to be distributed through Receive transmission path multiple channels of existing cable TV networks. 8K signals Remodulation 256QAM MMT ・ TLV Demodulated Divide / 256QAM Features 8K signals Multiplex

◉ Each 8K signal is divided up and sent through multiple 64QAM channels (64QAM*1 or 256QAM) of the cable TV transmission system. In this way, it can be delivered to subscribers without any changes to the existing cable TV Subscriber transmission paths. Demodulation ◉ This system supports the MMT*2 and TLV*3 multiplexing 256QAM schemes that will be used for 8K test broadcasting in ＭＭＴ 2016. 256QAM Combine

*1 QAM (Quadrature Amplitude Modulation): A digital modulation scheme that conveys information on the amplitude and phase of a carrier. 64QAM 8K viewing *2 MMT (MPEG Media Transport): International standard media transport scheme supporting various transmission paths. *3 TLV (Type Length Value): A transmission signal format to efficiently transmit IP packets (variable-length packets) over broadcasting channels 8K

Transmission Technologies for the Next Generation of Digital Terrestrial Broadcasting 2 Transmission experiment in urban areas

Outline

We have been studying large-capacity transmission technologies for 8K Super Hi-Vision (8K) terrestrial broadcasting. This exhibit demonstrates the 8K transmission experiment we are conducting and displays the technologies to improve the reception characteristics.

Features

◉ 8K transmission experiment in urban areas Following the 8K transmission experiment conducted in Hitoyoshi City, Kumamoto Prefecture, we are conducting transmission tests using an experimental transmitting station installed at NHK STRL in order to evaluate the transmission characteristics in urban areas. In this exhibit, you can view, in real time, the video received at the NHK Broadcasting Center 8 km away. ◉ Improvement of fixed reception characteristics For a modulation scheme with many signal points such as 4096QAM*1, adjusting the distance between signal points to equalize the error rate of each bit of the symbol can enhance robustness against noise compared with the conventional modulation scheme in which signal points are distributed uniformly. ◉ Improvement of mobile reception characteristics Stable reception can be ensured even in a mobile reception environment by using a decoding technology that compares actual reception signal points and all possible point candidates and selects the most probable signal point candidate.

Future plans

We are continuing our study on transmission technologies for the next-generation of terrestrial broadcasting considering compatibility between 8K Super Hi-Vision broadcasting services for fixed receivers and Hi-Vision services for mobile receivers as well as the development of transmitting networks.

*1 QAM (Quadrature Amplitude Modulation): A digital modulation scheme that conveys information on the amplitude and phase of a carrier. *2 MIMO (Multiple-lnput Multiple-Output): A wireless transmission scheme that uses multiple antennas each for transmission and reception. *3 OFDM (Orthogonal Frequency Division Multiplexing): A transmission scheme that arranges multiple carriers orthogonal to each other on the frequency axis.

Dual-polarized NHK Broadcasting NHK STRL transmitting antenna Distance b/w transmitting and receiving points: 8km Center

Low noise amplifier 1 2 Encoded Dual-polarized MIMO* Dual-polarized Dual-polarized Ultra-multilevel MIMO receiving antenna Low noise 8K signals OFDM*3 modulator transmitter amplifier 2

Optical cable Optical Optical Dual-polarizedMIMOp Dual-polarized 8K demodulator 1 modulator 1 8K display decoder UltUltra-multilevelra-multilevel MIMO OOFDMFDM demodulatordemodulator receiver Optical Optical demodulator 2 modulator 2

8K terrestrial transmission experiment system diagram 8K

Advances on Hybridcast Services for 8K Displays 3 Interactive services for large ultra-high-definition screens

Outline

Towards the launch of Hybridcast services for 8K Super Hi-Vision (8K), we are studying next-generation interactive services that take advantage of the large, ultra-high-definition display environment of 8K broadcasting. This exhibit introduces you to new ways of enjoying broadcast services using highly immersive video.

Features

◉ Fine-grained, beautiful applications The 8K broadcasting environment compatible HTML5 browser can simultaneously play back multiple ultra-high-definition videos together with fine-grained presentations of Hybridcast applications. ◉ New layouts on a screen Hybridcast applications flexibly lay out various content elements on a large ultra-high-definition screen. This feature makes possible new viewing experiences, for example, clipping part of an immersive 8K video or presenting 8K video together with information from the Internet. ◉ Easy and smooth operation For stress-free operation of applications laid out on a large screen, a new user interface is required. Here, viewers can use companion devices as smartphones and tablets to perform a range of easy and intuitive operations.

Future plans

We are continuing with our R&D on broadcasting systems for Hybridcast services in preparation for the start of 8K test broadcasting in 2016.

HTML5 applications using ultra-high-definitionnition videovideo Flexible layout on screen combining 8K video images from broadcast and various information from the Internet

Intuitive user interface using companion devices

Envisioned 8K Hybridcast services 8K MMT, New Media Transport Technology 4 For harmonization of 8K broadcasting and broadband

Outline

We are studying media transport technologies to provide hybrid 8K Super Hi-Vision (8K) broadcasting services enhanced with information from broadband networks. This exhibit shows examples of hybrid services using the transmitters and receivers supporting MMT*.

Features

◉ Advanced broadcasting services enhanced with broadband networks With the use of MMT, TV programs can be transmitted using the same mechanism for both broadcasting and broadband. It allows information transmitted through different channels to be easily presented in synchronization with each other on a display. ◉ Presentation of content suited to individual viewers MMT enables seamless switching between a program received from broadcasting and a program received from broadband. This enables the presentation of videos tailored to the needs and interests of individual viewers, for example, by presenting program advertisements suited for their needs. ◉ Development of a transmitter/receiver supporting MMT We have developed a transmitter/receiver for MMT-based transmission of video and audio signals. This device is compliant with ARIB STD-B60, a Japanese media transport scheme standard for 8K broadcasting.

Future plans

We are going to conduct transmission experiments using the transmitter/receiver we developed in various environments and verify hybrid 8K broadcasting and broadband services. We are also going to examine reception and presentation on web browsers.

* MMT (MPEG Media Transport): A media transport protocol for media delivery in heterogeneous environments, which was standardized in MPEG in 2014. It is also specified as an element of the management and protocol layer of the ATSC 3.0, next generation terrestrial TV broadcasting standard under development in the U.S.

Real-time viewing of 8K broadcasting on a large screen

Broadcast Indoors station

･Synchronized presentation ･Seamless Goal!! switching Additional Additional information (video, audio, data) information Various channels ・FTTH Outdoors ・Cable TV ・Mobile broadband

Goal!!

Ex. Olympics watching, live-broadcast viewing

Enhancement of 8K broadcasting with broadband enabled by MMT 8K

Real-time Video Coding System with Super-resolution Reconstruction 5 For transmission of ultra-high-definition video at low bit rates

Outline

We are conducting research on Super Hi-Vision transmission systems with super-resolution techniques*1 aiming at reducing the requisite bit rate to 1/3 that of existing video codecs. Parameters optimized with a criterion that models the human vision system are transmitted in a compressed format to receivers in which super-resolution processes suppress the image degradation due to the high compression ratio.

Features

◉ Compression of side data for reception-side super-resolution control The input high-resolution video is down-sampled before being encoded. The decoded video frames are up-sampled to the original resolutions on the reception side by applying super-resolution techniques with the aid of side data optimized on the transmission side. Greater efficiency is achieved by compressing the side data as well. ◉ Optimization technology considering human vision characteristics The previous system used only the difference from the original image to determine the fidelity during optimization on the transmission side. The new system also considers the structural similarity*2 of the image pattern, thus enabling optimization in a similar way to how the human vision faculty works. ◉ 12-bit video support using tone reconstruction technique We have implemented tone reduction/reconstruction functions to transmit 12-bit (4096 levels per color) video through a transmission system for 8-bit (256 levels per color) video.

Future plans

We are now developing an 8K transmission system incorporating these technologies. We also plan to conduct a verification of the whole transmission system, including the channel coding and RF modulation.

*1 Super-resolution technique: Technology to increase the resolution by supplementing edges and detailed patterns. *2 Structural similarity: Degree of similarity in terms of rough patterns of appearances

4K/12-bit Reduction Transmission Reception Reconstruction 4K/12-bit reconstruction video side side reconstruction video Resolution reduction reduction Resolution Tone

2K/8-bit video Tone

Video Video Transmission

encoding decoded video Locally decoding channel(s)

Optimization Control

Side data Side data Considers structural encoding decoding similarity as well as error

Configuration of real-time reconstructive video coding 8K

Program Contribution Technologies for Live Broadcasts of 8K 6 Making live broadcasting in 8K a reality

Outline

We are studying program contribution transmission technologies capable of supporting live broadcasts of 8K Super Hi-Vision (8K). This exhibit shows two types of FPUs*1 using the millimeter-wave band and wired gigabit-class transmission technology for program contributions.

Features

◉ Millimeter-wave band FPU for transmission of an uncompressed 8K signal This FPU can transmit an uncompressed 8K signal with low-latency by using 120-GHz-band radio waves. Its use of both horizontal and vertical polarizations enables large-capacity transmissions over a distance of about 1 km in fine weather and 250 m in the rain. ◉ Millimeter-wave band FPU for long-distance transmission of a compressed 8K signals We prototyped an FPU that can transmit an 8K signal over long distances. It uses the 42-GHz band and an OFDM scheme with a 109 MHz or 54 MHz bandwidth. We are aiming at making it able to transmit an 8K signal about 40 km in fine weather and 5 km in the rain. ◉ Optical fiber transmission of an uncompressed 8K signal using 100 Gigabit Ethernet To enable 8K program contribution signals to be transmitted over an Ethernet network between and within broadcast stations, we have developed a device to transform an uncompressed 8K signal into 100 Gigabit Ethernet format. By using a technology to recover data errors occurring during transmission, large-volume uncompressed 8K signals can be stably transmitted over an Ethernet network.

Future plans

We are continuing with experimental verifications that put the technologies into practical use.

*1 FPU (Field Pick-up Unit): A portable, wireless transmission device for program contribution transmissions that involve outdoor relays. *2 The transmission scheme of the millimeter-wave band FPU follows the ARIB STD-B65 standard. *3 Signal interface for UHDTV production systems: Optical signal interface to transmit 8K video and sound signals over a single cable in compliance with the ARIB STD-B58 standard.

Program production Network outside the broadcast station in the broadcast station Editing room Studio Millimeter-wave-band FPU for an uncompressed 8K signal transmission*２ - Short-distance transmissions such as within a stadium or crossing a road

Crossing a road or river 100 Gigabit Transmission device Transmission Ethernet network device Uncompressed Optical fiber 8K optical signal ・Frame rate: Millimeter-wave-band FPU for a 60 Hz, 72 Gbps compressed 8K signal transmission - Long-distance transmission such as ・Signal interface for UHDTV production from a relay site to a broadcast station systems*3

Transmission device Long-distance transmission （To another broadcast station) Broadcast station

Overview of 8K program contribution transmission 8K 8K Recorder with 120-Hz Frame Rate 77 For 8K program production at a 120-Hz frame rate

展示概要Outline We are conducting research on 8K Super Hi-Vision (8K) compression recorders for 8K program production at a 120-Hz frame rate. This exhibit displays a compression recorder that can input/output an 8K signal over a single optical cable and record the data in a removable memory package.

Features

◉ High-speed compression recording method maintaining high image quality This recorder compresses each frame at a rate of 1/6 whilst maintaining its image quality. Parallel signal processing of even-numbered frames and odd-numbered frames enables high-speed compression at 120 frames per second in real time. ◉ High-speed memory package capable of recording 120-Hz 8K signal We have developed a memory package that can record 120-Hz 8K signal. The writing efficiency has been significantly improved by doubling the number of parallel writing processes in the memory package and reducing the waiting time for writing data. The recording speed is doubled in comparison with conventional recorders. ◉ Compliance with the Interface for UHDTV Production Systems (ARIB STD-B58) We have developed a processing unit for the recorder that is compliant with the interface for UHDTV production systems capable of input/output of 8K signals over a single optical cable.

Future plans

With the goal of putting the 120-Hz 8K compression recorder into practical use, we are improving the compression recording method and increasing the speed and capacity of the memory package to enable longer recordings with higher quality.

●The development of 8K recorders is being conducted in cooperation with Tokyo Electron Device, Ltd.

Recorder input/output 8K display interface 8K camera

High-speed High-speed compression memory package recording method that maintains the quality of the image

8K 120-Hz compression recorder 8K High-density Holographic Memory 8 For archiving 8K content

Outline

We are conducting research into high-density holographic memory for long-term storage of 8K Super Hi-Vision (8K) programs. This exhibit shows the technology to increase recording density, including a method of multiplexing data recorded onto a holographic medium, as well as the process of reading compressed 8K signal data from the medium and showing it as video.

Features

◉ Increasing the multiplex number by using two-dimensional angle multiplexing We previously used the“angle multiplexing” method that records data by changing the angle of incident light on the medium. We have developed a new“two-dimensional angle multiplexing” method that uses the position of the recording medium as an additional multiplex axis. This method has increased the multiplex number by four times over that of single-angle multiplexing. ◉ Recording and reproduction of 8K videos We are using holographic memory to record and reproduce compressed 8K video signals. In addition to the parallel signal processing method we previously developed, we have improved the mechanical system, thus enabling a stable reproduction.

Future plans

We are aiming at establishing a means of archiving 8K video and putting it to practical use as a new recording technology by further increasing the density and data transfer rate.

●This research is being conducted in cooperation with Nippon Steel & Sumikin Chemical Co., Ltd.

Angle n Reference beam (for recording): Angle 1 Multiplexed recording by changing the incident angle

Recording medium: Rotation multiplexing at 90° each Data page Input data Hologram recording ･･･1000010 medium Reference beam (for reproduction): Reproduction by changing the incident angle

Multiplexed recorded hologram Data page Angle 1 Reproduction signal read off parallel processing the hologram device Angle n

Principle of holographic memory using two-dimensional angle multiplexing 8K

Longer Lifetime Technologies for OLED Displays 9 New device structure that is stable in air and advanced panel driving technology

Outline

We are researching large, thin, and lightweight sheet-type displays for 8K Super Hi-Vision. This exhibit displays driving technology for adaptive temporal aperture control and an inverted OLED* that will extend the lifetime of displays.

Features

◉ Adaptive temporal aperture control driving technology To solve the problem of motion blur of OLED displays, we have developed a driving method to control the temporal aperture of a panel. Longer lifetime as well as an improvement in video quality can be expected as a result of suppressing instantaneous luminance changes. ◉ Inverted OLED device with atmospheric stability and longer lifetime We have developed a flexible display using an inverted OLED that has high stability in air. With a structure opposite to that of conventional OLEDs, the device can use new materials that are resistant to oxygen and moisture. It will lengthen the lifetime of displays using plastic film substrate with low gas-barrier properties.

Future plans

We are continuing with our research on high-speed driving technology for higher image quality and improving the characteristics of inverted OLED devices by lowering their voltage and reducing their power consumption to enable the realization of sheet-type displays.

●The research on inverted OLED devices is being conducted in cooperation with Nippon Shokubai Co., Ltd.

*OLED:Organic Light-emitting Diode 8K

Laser-backlit Wide-gamut LCD and Color Gamut Mapping 10 For production of wide-color-gamut 8K

Outline

We have developed a laser-backlit LCD (4K) that supports wide-gamut system colorimetry * for ultra-high definition TV (4K/8K). We have also developed a high-quality gamut mapping device to convert video in the wide gamut into video in the HDTV color gamut in real time.

Features

◉ Laser-backlit wide-gamut LCD For wide-color-gamut production, we have developed an LCD that uses laser diodes (red, green, and blue) for the backlight source. The gamut coverage ratio is 98% (in the xy chromaticity diagram). ◉ High-quality real-time color gamut mapping device To convert wide-gamut content into HDTV content, we have developed a high-quality gamut mapping device that minimizes perceptual hue changes. This device does not cause significant texture loss and discontinuous tones, which are generated with simpler gamut mapping algorithms commonly used.

Future plans

We are working towards practical application of 8K wide-gamut direct-view displays and color gamut mapping devices in time for the start of 8K broadcasting.

* Wide-gamut system colorimetry: Ultra-high definition TV employs wide-gamut system colorimetry (a system to quantify colors) that can accurately reproduce saturated colors out of the HDTV gamut. (The colorimetry was standardized at ARIB, SMPTE, and ITU-R.) 8K

Full-specification 8K Projector 11 8K, 120-Hz, wide-color-gamut images on a large screen

Outline

We have developed a projector that can display full-specification 8K Super Hi-Vision (8K) images (8K full resolution, 120-Hz frame rate, wide-gamut system colorimetry)*1 on a large screen.

Features

◉ Display of full-specification 8K images on a large screen High-definition, vivid-color immersive images with less motion blur can be displayed on a 450-inch large screen. ◉ Compact 33-megapixel liquid crystal device and laser light source Three 33-megapixel liquid crystal devices of 1.3-inch in diagonal, which are each the same size as a 4K device, are driven at a 120-Hz frame rate. Red, green and blue laser diodes are used as light sources. ◉ Optical interface*2 that can transmit 8K video signals over a single cable The single multilink optical cable can input full-specification 8K video signals (approx. 144 Gbps) to the projector.

Future plans

We are continuing with our development of various full-specification 8K displays towards enhanced full-specification 8K broadcasting.

*1 Full-specification 8K Super Hi-Vision: 8K system parameters have been standardized internationally (Rec. ITU-R BT.2020 and SMPTE ST2036-1) and in Japan (ARIB STD-B56). Of them, the specification with 7,680 x 4,320 (8K) pixels, 120-Hz frame frequency, wide-color-gamutwide colooro gamuutu colorimetrycol andd 1212-bit bit depth iss referreder to as “full-specification full speecification 8K.”8K. *2 Opticalal interface:interfai ce:cce StandardizedS an inn the Interface foror UHDTVUH PProductionroductionn Systems (ARIB STD-B58). New Broadcasting Technologies Utilizing Broadband

The New Media Player for MPEG-DASH, and Contents Delivery Technologies 12 For advanced video delivery services

Outline

We have developed an MPEG-DASH*1 player and delivery technology to allow content to be viewed on various devices including TV and mobile terminals. This exhibit presents the technology along with a video-on-demand (VOD) service supported by Hybridcast and a new video delivery service.

Features

◉ Internet video service with Hybridcast Hybridcast which conforms to a new VOD standard*2 will further the convergence of broadcasting and Internet video. It provides a wider range of possibilities for Internet video services for TV such as recommending videos according to viewer preferences, linkage with mobile devices, and closed-caption services capable of diverse expressions. ◉ MPEG-DASH player supporting multiple devices We have developed a content player that can be commonly used for Hybridcast TV and web browsers on PCs and mobile devices. As the player uses standard Internet technologies, the services provided on it can use the existing Internet infrastructure. ◉ Content delivery technology for stable large-scale delivery For stable, large-scale video delivery on the Internet, we have developed a technology to measure the reception status of viewing terminals as well as a video stream generation technology.

Future plans

We will continue with our R&D on new content delivery services in cooperation with other broadcasters, teletelecommunicationscocommunicationsuunica carriersar and IntInternetnternetrne service providers.proroviders.

*1 MPEGMPM DyDynamicynnamicm AAdaptive StStreaming over HTHTTPHTTP:P: A video deldeliveryivevery technology internationallyy standststandardizedstanddardized by ISO that can deliverer videosvid at differentiffer ntt bit rratess accordingn to traffic conditionsconconditionss ofo Internet.t. *2 Newew VOVODODOD standard:a d MPEG-DASH- IPTVFJTVF pprofilerofile in IPIPTVFJ STSTD-0013 version 2.0 New Broadcasting Technologies Utilizing Broadband

Synchronization Technology for Broadcast Programs and Internet Content 13 Taking Hybridcast to the next level

Outline

To give Hybridcast a higher level of functionality, we are working on technologies to synchronize Internet-based content with broadcast programs. Below is an example of how we can customize live sports coverage by offering additional features via the Internet, such as alternative camera footage and various data corresponding to the on-going game, to give viewers more excitement and a better understanding of the content they are watching.

Features

◉ Synchronizing video shown on television and mobile devices We have developed a way to synchronize streamed video on mobile devices with programs broadcast over the air. It sends reference clock data from the broadcast signals to a mobile device, such as a tablet, to enable it to synchronize the streaming video with the broadcast. ◉ Synchronizing broadcast program and real-time data During live sports coverage, various real-time data are sent over the Internet. Our technology coordinates broadcast reference clocks with real-time UTC (Coordinated Universal Time) to accurately synchronize data with broadcasts and overlay it on television screens. ◉ Prototype Hybridcast receivers with the latest synchronizing technologies In June 2014 the IPTV Forum Japan released the Hybridcast Technical Specifications ver2.0*, which includes a new feature to synchronize broadcasts with Internet content. A new clock-acquisition API has been installed on the prototype receiver used in our demonstration.

Future plans

We willl cconductconduuctu t testst overer the Internetet anand researchh on minimiziminimizingng the distrdistributionibutionion anda didisplaysplay latlatency.atency. We wilwillll alsoo workwo k on layinglayini g out operationaloperatierational ruless tot make this ssynchronizationynchronizanizanii atiation functionalityfunctionality a partparart ofo commerciallcommerciallymmerciallyly availablev a receivers.c

* HybridcastH ca t TTechnicalchnn Specificationsp ca verver2.0ver2.0 comprises IPTVIPTV ForuForumm Japan’ss ststandardan STD-0010-0010 bbroadcast-internetbroaadcast-internet coordinationcoordinatitiono systemsystemem spespspecificationscificatiatioons ver2.0r2.0r andd STD-0011D- 1 HTHHTML5ML5 browser spespecificationscicifiifications vver2.1.er2.1. New Broadcasting Technologies Utilizing Broadband

Bridging Broadcast and Internet Services 14 Providing new services using web-based technologies

Outline

We are developing new ways to use broadcast content in various services. By promoting the distribution of program-related data, we will put in place a framework where third parties can make the most out of Hybridcast and other Internet-based services. We are also introducing technologies so that viewers can enjoy programs on any device of their choice.

Features

◉ Data-hub for Program-related information Broadcast stations store a lot of information, but the conventional means of searching by keyword only returns a tiny amount of it. In order to find content that would be useful for various services inside and outside a broadcasting station, we are developing technologies to describe and accumulate content related information in the computer processable LOD*1 format. ◉ Coordinated services using Non-broadcast-oriented managed app for Hybridcast Hybridcast Technical Specifications ver 2.0*2 will allow viewers to enjoy apps offered by broadcasters and other service providers. The data-hub will support new services incorporating broadcast content and related information. ◉ Engaging viewers in a diversified media environment People can now view programs on their smartphones and other devices. To cater to viewers in this diversified media environment, we are developing ways to access content through the same menus and interfaces regardless of the device being used.

Future plans

We wwill workwoorkk togethertogetherr with non-broadcastnon-brbroadcastoa serviceservicice providersproviders in ffurtheriurtheringnng our RR&D efforts too promotepromomotet widerwidde usageussaga e off broadcastca content.t.

*1 LODOD (Linked(LLinkedLinLini d Openn Data): A general termter for technologytechnhnologyy whichw has been standardizestandardizdardize in W3C (World(Wo( orld Wide Web Consortium) toto publblishish and shareshah ree computerompp prprocesssabless data.ata *2 HybHybridcastybrridcastt TeTechnicalni SSpecificatSpecificationsfica ions ver2.0 is comprisedcommpmmprised of IPIPTVPTVTV FForum Japan standardtandard STDSTD-0010D-0010 broadcast-internbroadcast-interneternet coordinacoordinatioordinaationn systemsysstemsts specificationse fica o vever2.02.0 and STD-0011 HTML5ML5 brbrowserwser specificasspecificationstions ver2.1. New Broadcasting Technologies Utilizing Broadband

Advanced Program Viewing System Based on Cloud Computing Technologies 15 Providing access to broadcast programming anywhere, anytime

Outline

We are developing a new video-on-demand service using cloud computing technologies to allow viewers to access programs from the past. Here we demonstrate how viewers can easily find their favorite programs from a vast archive of broadcast content.

Features

◉ Tag-triggered program viewing Viewers can flip through different programs triggered by keyword tags relating to the content they are watching at the moment. This allows viewers to easily find programs featuring a particular performer or area of interest. ◉ Cloud-based viewing system The viewing software runs on a cloud server and optimizes the video and audio for whatever device the viewer is using. This means the device itself does not need to run sophisticated software and viewers can enjoy services on affordable devices.

Future plans

Our R&D plans include improving the high-speed cloud computing technologies to enable simultaneous accesses by a large number of viewers and wide range of devices. We will also promote new broadcast services that offer exciting and convenient ways of enjoying broadcast content. Three-dimensional Television

Integral Three-dimensional Television 16 Working towards a high-quality 3D TV

Outline

We are continuing our research to make Integral 3D Television* a part of our future broadcast offerings. This exhibit shows how we use multiple cameras and display devices to increase the number of pixels in order to achieve better 3D imagery.

Features

◉ Integral 3D capturing equipment using multiple cameras To improve 3D imagery, we have developed integral 3D capturing equipment using multiple cameras. We have increased both the number of cameras and the number of micro-lenses in the lens array to capture integral 3D imagery consisting of approximately 100,000 pixels. ◉ Integral 3D display using multiple display devices To achieve high-quality integral 3D imagery, we are researching a technique to increase the number of pixels using multiple display devices. We are incorporating better high-definition display devices to reconstruct integral 3D imagery consisting of approximately 100,000 pixels.

Future plans

We will build on this technology to improve our capturing and display equipment and achieve even better 3D images.

* Integral 3D television reconstructs 3D images by using micro-lens arrays for both capture and display. Three-dimensional Television

Spatial Light Modulators Driven by Spin Transfer Switching 17 Technology for the future holographic 3D television

Outline

We have been studying ultra-high-density spatial light modulators*1 (SLMs) with very large numbers of pixels, which is considered a crucial technology for holographic 3D televisions. Our latest development is a narrow pixel-pitch SLM driven by spin transfer switching, which uses an active matrix driving method*2 and can operate under low driving current.

Features

◉ Spatial light modulators with narrow pixel pitches To be able to observe holographic 3D images from various angles, we need ultra-high-density spatial light modulators with very narrow pixel pitches. By increasing the density of the spatial light modulator driven by spin transfer switching, we have succeeded in narrowing the pixel-pitch by 60%. ◉ Light modulator element with the low driving current We have developed a device that uses innovative light modulator elements as pixels. This technology is based on the tunnel magneto-resistance effect*3 which draws less electrical current than conventional methods. It operates by spin transfer magnetization reversal, whereby the magnetizing direction of light modulator elements is controlled by the direction of current flowing through each pixel.

Future plans

To achieve a narrow pixel-pitch, ultra-high-resolution spatial light modulator, we aim to develop a nano-scale-fabrication process and further improve our light modulator elements.

● This research is supported in part by the National Institute of Information and Communication Technology (NICT), under the project“R&D of ultra-realistic communication technology through innovative 3D image technology,” and is being conducteduc inn ccollaborationo la withw Nagaokaa Universityniv of TechnologTechhnology.n y.

*1 Spatialat al lighliglightt modulator:m u o a devicece consisting of a 2D2D arrangementarrangementnt of tiny optical elements (equiv(equivalentquivalenuival nt to pixels) that is ableable to concontroltrorolol thet statesta of lighlighthtt (amplitude,mp d phase,e etc). *22 ActiveA matrixmatrm tririxix drivingd v method:me a method to individuallyindividually operateop e selected pixels by allocatingallocat switchingwitch g elementseleements as transistors for eachch pixel.l *33 Tunnel mamagneto-resistanceagneto-resistanceag too-o ta effect:ef a pphephenomenonnomenon wherewherebyrebyby the eelectricallectricall resistanceresis of ann insulatinginsulat layer, placed between twowo magneticic layers,lay altersalteaalters dependingeppen g on theth relativerelativelat e angle of the twoo mmagneticmagnetic layerslayers. Enhancing Production

22.2 Multi-channel Loudness Meter 18 Supporting sophisticated sound production for 8K programs

Outline

This 22.2 multi-channel meter monitors loudness levels during production and broadcasting of 8K Super Hi-Vision (8K). It is fully compatible with loudness meters for stereo and 5.1 surround.

Features

◉ Objective measurement of “loudness” “Loudness” is a subjective perception of how loud a sound sounds to the human ear. Loudness meters calculate the loudness value of a program sound by filtering it on the basis of the properties of the human ear and weighting it according to the direction of the audio channels. Broadcasters can now use loudness meters to normalize loudness values across all programs. ◉ Compatibility with conventional loudness meters Loudness meters have already been developed for programs with stereophonic or 5.1 surround systems, where the audio channels are all arranged horizontally. We have taken these conventional loudness meters and added more weighting coefficients to them for the channels located in the upper and lower layers to enable loudness to be measured in 8K programming. With this new development, it is now possible to estimate the loudness values of 22.2 multi-channel audio as accurately as with stereo or 5.1 surround sound.

Future plans

We will push forward with the implementation and standardization of 8K compatible loudness meters at domestic and international bodies including ARIB (Association of Radio Industries and Businesses) and the ITU-R (International( Telecommunication Union Radio-communication Sector).) Enhancinghahancinghanana Productionon Multi-viewpointMulti-viewpoint Robotic CameraCamerass 19 UsingUsing multiple cameras to create three-dimensional videovideo

OutlineOutline

WeWe have been researchinresearchingg robotic cameras to cacapturepture multi-viewmulti-viewppoint imagesimages of movingmoving subjectssubjects byby controllingontrolling multiplemultiple cameras in unison. Not onlyonly have we imimprovproveded the overalloverall performanceperformance of the ssystem,ystem, wee have alsoalso recentlyrecently developeddeveloped a technologychnology where the operatoroperator can easilyeasily choose the camera that bestest captures thethe movements ofof thethe subjectssubjects inin orderorder to produceproduce more engagengaginging iimages.mages.

FeaturesFeatures

◉ Multi-vieMulti-viewpointv ewpoinw ointnt rrobotic camerascammerasm ra Increasingncreasingin thethee numbern of camecamerasmeerasa has enabledbled usu to capture widerwidedererr mmumulti-viewpointuultulti-vlti-vviewpovieie oint iimages.mmages. We haveh develodevelopedpeed a mmore ssophisticatedophisticatateted rrobotico systemsystem by incorporatingincorin orporating smallersmallelere ccamcamerasmeeraseer s usiuusingng fewer cablecables,s, higherer vvideodeo qualityquuality and processingproccessince ngg speed in comparisoncomparison with ththee ppreviousprevire ouus ononeone. ◉ Innovativennovativn tivev imagimagesages ProducersProduceerss and commentatorscomommenommmentammentatorsat ofof sportss events can now choose from aamongam ng thet varvariousariouara ouss camerasmerasras to show thethhe bestbbe shot to betbetteretttter illustrateillusstrs ateat the movements of the players.players. ◉ AppApplicationplicationon for integralinteegggral 3DD televisiontelevisione TheThhee sysystemstemm is capablecapaableb e of ggeneratingenerate ting inteintegralgral 3D imimages*ages** (f((foror intinnttegraleggral 3D teletelevision)evision)) fromm tthe multi-viewpointmu oi images.imagegees.

Futureuture plansplans

We will improveve theththeh quality off tthehe mmulti-viewpointulti imagesim andd uusese the systemsystemm to cover the TokyTokyokyo Olympicicic Games in 2020.202020.

* Integralntegral 3DD imagesimages:ess: aautostereoscopicut p 3D images tthat do not requirerequire specialspececial glasses and still exhibit parparallaxrallax dependingending on thethe viewinviewingwing angle. EnhancingEEnhEn ProductionProductiuctiontit Video Bank to Enable More Efficient and Effective ImaImagege ManipulatioManipulationn 20 Bringing metadata into the video production system

OutlineOutline

WeWe are studying how technology can better support program producproductiontion in terms of image searches and manipulation. So far various information about video, called metadata, has been created manually. Our latestlatest video bank ssystemystem uses light-sensinglight-sensing and video analyzinganalyzing technologiestechnologies to automaticallautomaticallyy ggenerateenerate andand attach metadata to a piecepiece of video.

FeaturesFeatures

◉ AutomaticallyAutomtoomaticallycaally generatingg informationinfoformation thatt is useuseful for videvideodeoeeo productionpproducoduuctionction The systemsyststememm analyses the videovidviideeo materialm and auautomatically generatgeneraeraeratattesess metadatametametetatadata a suchuchch as image featuresf and thet nname of the subject,subjejeect, therebyth making it easiersier to searchse fororr paparticupparticularcularcu r iimages.mamages.m By using video analysisnalyys s anandnd light-sensingngg technologies,techhnologies,h itt also autoautomaticallyomatically generategengenerateses moremom technicaltetectechechhhnical information, such as cameracammeram momovements andannd lightlightinghting data, which are essential for sophisticatedsophishisticatsticatatettededed vvideoideideoe production. ◉ FaciFacilitatingcilitatingl ta cocomplexomplexexe videoe compositions Thehe videod compoccompositionpositioioon processce s needs information on camera movemvemmentents,nts, lighlighting,ghting, ssubjesubjectbject region, etc.c. TheThT systems uses datadadataat from sensorsenssor cameras* to automatically genegeneratge rateatttee lightingg informinformationmationma on for makimakingking morem natural-lookinnatural-lookingat ngng video compcompositions.positions.

FutureFuture plansplans

We will continuecontinn inueu to improveove each ofo the elementalal technologies,ttechnologogies, conducconductct trials in whichh we workk closely with productioproductioncctiotiononteams,andb teams, andan buildb on their feedbackbac to creatcreateate a versatile aand practical system.systetem.

* Sensor camcamerara:a:a: a camera usedd to capturecapture information aboabout lightinglighting conconditiononditionss such as locationlocations,ns, intensities, and colors off lightligh sources.ss. EnhancingEnEnhanhahancingana ProductionProduction

BidirectionalBidirectional DiDigitalgital FPU for ReliableReliable High-speedHigh-speed Transmissions 21 SpeedingSpeeding up transmissions from the fieldfield

OutlineOutline

FPUs* transmit lliveive and recorded footafootagege from the fiefieldld to the broadcastinbroadcastingg station. Our aim is to speed up the filefile transfer process and to enableenable remote controlcontrol of cameras by making these systems bidirectional. In the bidirectional FPU system, the receiver feeds back information like rreceptioneception quality and transmission status back to the FPU at ththee site, so that it can automatically aadjustdjust its transmission. The result is a faster, more reliable transmissiontransmission ssystem.ystem.

FeaturesFeatures

◉ Automaticma icc selectionssesel of modulationmooduodulationd la schemecheme depending onn pprpropagatroopagopaagatioaagg ionon envenvironmentenvnvironmentnt Wirelesss propagationpropproopapagation is affecaffectedteed bbyy environmentalnmental factfactorsors includincludiincludinging weather,weatttherheer, titidaldaldda levels,levevvelsveels, and obstructive trees.s.. TheThT e bidirectionalbidireb rectional systememm monitorsmonitorsn the received signalss als aandnd returnsreturn theirt r channelchannnnnenele status back to the origin,orig whewherehereh thehe FPU automautomaticallyomatim caalally selectsselect a modulation scheme that ccanan maintainmmainmaaiainntntaiainain thet quality of the signals it sends. ThisT s meansmemeaansa on-siteonn-sn site crews can save time when settingsettingg upu andaan checkingcheheeckeckingking the signalsig conditions,conditioions,s, and theytheey cann alsoa sesendende d files in a shorter time by ususinging a modmodulationoddulatid ationn schemes me withwit adequatet robustnessroobustbubuststtnetnesnesss fforor tthehe ttransmissionraanssmim ssion coconditions.ndn itions. ◉ EnaEnablingabling eefficient ereerror-correctionrror-coorro ecction and retransmissionn forf dadatatta recoverrecoveryery Too achieve rereliable trtransmissions,ransma smissioons,o conventional,coonventional, unidirectionalnal FPUss ssendd data with a fixed amountam ttof ofo redundantre data.a ThThehee bidibidirectionalrecttionalt FPUF sends data with a small aamamountmount of redundantnt data att first. Itt sends additionalon reredundanteddundant datad onlyy when a data transmissionnsm fails.fafails. The effect is that ththehe bidirectbidirectionalctionalcti systemsyst is moree efficienteffiefficcient and reliablerelrreeliablei thanthaan the unidirectionaltio one.one.

FutureFuture plansplans

As well as imprimprovingprorovingvvi operationalt efficefficiency,ieiency,y, wwe will researresearcharch multi-relaymulti-relay FPU tratransmissions.ansmissions.ons.

* FPU (Fi(Fieldeld Pick-upPick-k-u-up Unit):U ): A portableb wireless transmtransmissionnsmissssion systemsystem useusedsed for the transmission of live andann rerecordedecorded video from remote locatlocations.ationons. Human-friendlyHHumHu BroadcastingBroo ServiceSeervicrvice

SpeechSpeech Recognition for Live Captioning Inarticulate Program SpeSpeechech 22 EnhancingEnhancing Closed CaptioningCaptioning

OutlineOutline

ClosedClosed captionscaptions of pprogramrogram audio are essentiaessentiall to aid viewers, especiallyespecially the hearinghearing imimpaired,paired, but conventionalconventional methods rerequirequire a“re-speaker*“re-s peaker*1” in order to create accurate captions, especially when contentcontent includes expressive and unscripted speech. We are workinworkingg on applying speech recognition technologiestechnologies to produceproduce live closed cacaptioninptioning directlydirectly from programprogram audio byby develodevelopingping wawaysys to reducereduce backgroundbackground noise and improveimprove recognitionrecognition of inarticulate speech.speech.

FeaturesFeatures

◉ ReducingRedducinduciiningng backgroundd noisennooisse We hhahaveavea e developedd a proprototyperoototyypeyp system too recognizecoggnizegn sspeechpeech fromm programprrogramo amm audioaaududio with background noiseno e anda mmusic. The systemssy m estimatesmates speechspe signalss apart fromfroom bbacbackgrbackgroundcckkgrgroundo music and other noisee sos thatat it can accaccuratelycccurateurateele yyrec recognize spoken words. ◉ RecognizingReccoggnizinggnizing ininaciinaccuratecuurate pronunciationpropronunciation UnscriptedUnnscripptedp prograprogramsramsmss with multimmultipleiple guests can be full of speech pronouncedprpronnouounced inaccurately.i ura ely. The systemtem hash autoautomaticallytoomatically builtbbu up a databasedattabase including inaccurate spespspeecheech ofo approximatelyapproximmately 1,0001, 0 hoursh s fromf aired proprogramming.roogramminng.ng.g WordWordsds pronouncedpronounced inarticulately arere recognizrecogngnized by estimestimatingmating ththeir acaccurateccuratecc pronunciationspronunciaiaations fromfroroom thethhe database.daatabasea e.

Future plansplans

We will continueconntinnntt nuenue to improveim imprprroverovee ouro speechspeech recognitionrecoggnitionni technologytechnhnology aandnd apapplypply it to programsprogramsms with complexcoompmplex speech papatterns.patteteerns.eerr *1 Re-speaker:Re-spepeaker:pe r: A method wheree the words spokens byy peoplepe appearingappearingng in a program are rephrasedrephraseed by another speakerker (c(calle(calleded a re-speaker)re-speaker)er)) forr thetth purpurposerpposeose of generatingin captions. Itt mmakeses iti possible to produceprroduceo captions for programs withw multiplee speakersspe or largelarrgeg amounts oof backgroundbabackgrounbac unndd noise.nois *22 AAcousticc model:m d : a model thath probabilisticallyallyy eestimates vowelsvowels and consonants from audio sigsignals.naalsls. Human-friendlyHuHuman-friendlyumamman BroadcastingBroadcoadcastingdc ServiceServrvicvicicce

AutomaticAutomatic Sign Language AAnimationnimation SSystemystem UsiUsingng External Weather DatDataa 23 ExpandingExpanding our sign language serviceservicess

OutlineOutline

WeWe have develodevelopedped a ssystemystem that can read weather forecasts distributeddistributed byby the JaJapanpan MeteorologicalMeteorological AgencyAgency and coded in XXMLML format and have animated characters usinusingg sisigngn languagelanguage present them. It automaticallyautomatically generates and updates tthehe sign languagelanguage animationanimation based on the latestlatest weather forecast it receives throughthrough the Internet.

FeaturesFeatures

◉ AutomaticAutommatatic signsigigngn languagelal aananimationnimationn m With theh helphelheelplp of deaf voluntevolunteersteeerrs and signsign languagelan interpretersinterpreters,ers,rs,,,w weweeh havehavaveaavv createdcreeatededd a databases of expressionsexpressionsiiononss that correspondcorrespondndd to weatherw r forecast codesc des distridistributdistributeded bbyy thee MMeteMeteorologicalteortteeoeorological AgAgency.ency. The systemsysyst m receivesreeceives the cocode,ode,od insertsinnsertsn thee relevant informationnformation intoi tthee exexpressionprrreesseessssssion templates and automaticallyautomaticautauto icallyc generatesge appropriateappproprririateate sign language animations. ◉ Sign languagelananguageg e animataanimationtionti withwiwitithh a human touch In addadditionditionitionn to simplele templatetemmplatem completion,ccommpletion, we introduced an advadvancedanceded llanguageannguageg ge processingprocceseessinging program, whichwhich analyzesly incomingincommininng weatweatherthert information and automatically rrereviseeviseses the wordswordrds andd phrasesphrasrases intoo moremorore naturalra expressexpressions.siosions.i ForFooro example,example,a if the incoming codee indicaiindicatescatees that it wwill rainn todayay andan tomorrow,toomorrow,m theh systemm willill generategeneeratee ana animation that says“it t wwill rainn todaytodaay and continuecontitinue to tomorrow”tomorrto row”roow insteadin of“it t will raininn today,todayay, itt will rainraiin tomorrow.”

FutureFuture plansplans

We will conductdu t trial servicesce onlineonlinine and seekk widerw feedbackfeedbdback toto iimprovemprove ouourur ssystemystem for a mormoreoree natnatural and user-friendlyuser-frien-fr dlydly output.

● Thiss rresearchchh waswa conductedc ed in collaborationtion with Kogakuinin UniversiUniversity.ty. Human-friendlyHHu BroadcastingBroo SerSeServiceervicvice

Automatic Rewriting ofof News into Easy Japanese 24 Supporting the production of NEWSWEB EASY

OutlineOutline

WeWe are conductinconductingg research in susupportpport of NHK’s“NEWSWEB EASYEASY””*, which is a news site aimedaimed at children and foreigners learninglearning Japanese. NEWSWEB EASYEASY presents news in easiereasier to understand language than in the regular news. As this entails a labor-intensive task, i.e., rewriting the regular news, we are developing a system that can automatically performperform it.

FeaturesFeatures

◉ Rewritew tee knowledgeknk acquisitionacqcqquuisitionsi fromom manualma rewritee examplesexaexamxammpmmplesmplees The systsysssystemstetemt statistically learnsleearnnss rewritee knowledge from originalorigi newnewsws scriptsscriptsptspt anandndd their manual rewrites and uusesuseses theth knowledgee whenw n convertingng news ininto easier languaglanglanguageua e.. ◉ SegmentingSegmgmentim ng sentencessentenncesncces intoiinintnntto simpler s Japanese Thee systemy analysesananaanalysenalysesalyses thet syntacticsynntan actic structure of the original sensentencetenceceeet to tuturnrn longg andnd complexplex strings inintonto shorter,shorte shorhho comcomprehensiblemprehhensiblehe e oneones.es.

FutureFuture plansplans

We will continueo e tot improveimprovvev the qualityquuality of automaticalautomaticallyly rewritrewritttene sentesentencesences so thatt it can be used as a prproductionoductionn ssupportupppop rt ssystemysteemem of NEWNEWSWEBWSWEB EASY.

* NEWSWEB EASYASYY：hhttp://www.nhttp://www.nhk.or.jp/news/easy/hk.orh or.jp/news//easy/ BroadcastingBroaBroadoadcastingad Servicece

SmartSmart Close-upClose-up SystemSystem 25 UsingUsing simulated camera movements to create video ffromrom stationary imaimagesges

OutlineOutline

ManyMany of the photosphotos and imagesimages we receive or borrow from third parties are now in digitaldigital format. The Smart Close-upClose-up System can simulatesimulate camera movements upon such images, aadddd specialspecial effects llikeike shadows and pixepixelation,lation, and output the resuresultlt in a movie formaformat.t.

FeaturesFeatures

◉ ProducingProduciuccing sophisticatedsophphisticatedstic cameracamamerar movements withhheasy easy-to-handleeaeasy-to-heasy -hanandlean ccoontrollersers The highlyghly intintuitiveuitiveu tive controller ofo theh system is modeleddeled on robrobooboticotic cacamerasaammerasme s usedussed by broadcasters,brr ster allowingg thehe operatoroop to simulsimulateulalatte variousv cameraamera movements on thtthehe stationarysststatioatttiiioonaryy image,imaaggege, like panningnn sideways,yss, tiltingtiiltililting up/down, zoomingzozoommingin in/out,out, and rolling.g. The shotshshot mmemoryemoory functffufunctiontiontiot on helps to create complexlex ccacamerawork,ameram rawork, and oneonne cann specify the duration of each shshoshotot downdowwn too a fraframe.raamameee. ◉ CCreatingCreatinr g HD qualityquuality moviemovieovie filesfilees from fr highhigh resolution pphotohoto dadataata The systemsyststemm can handlehaandle photophhotoh datadaataa of up to 8,192 by 8,192 pixels and is capableccapabca ablele of crecreatingreatinrer ating HD qualityqu ality moviess withh zoomzoomed-zoomed-ind-in imagesimmagesma of upp to 1,920 by 1,080 pixels. ◉ EEfficientEfficcient vivideo prodproductionodductionddu n usinusingng special effects Thehe special effect featfeatureatturure includesu addinga shadows to or pixelatingpixelatela ing a stastationaryationary imimage.mage.a ThiThishis willl giveggi producersproroducers roomoo for moremo crcreativityti than,thaan, for example, shootingng a simpleple closclose-upse-up of a pappaperaper dodocument.cucument.

Future plansplans

While continuinguing with our devedevelopmentd elopmentelopme to supportppo 4K andnd 8K systems,systems, we will also workrk on moreree sophisticateded featuresfeeaeaturesa suchh as recreatingrececreating thee subtles quiverquivever of real-life camerascammeras to offer a widwiderderer ranrange of video creativcreativity.re vity.vitty

● This resresearchh iis conductedcon inn collaboration wwithith Musashi OpticOptiticalcal System Co., Ltd. ● Thiss exhibitex iis presentedr e by NNHK’s Broadcastcast EEngineering DepartmentDe and NHK Niigata.ta.a. BroadcastingBrBBro ServiceServicrvicec

UtilizationUtilization and Development ofof NHK’s TechnologiesTechnologies 26 Serving society by making NHK’s technologies available for many useusess

Outline

NHKNHK EngineeringEngineering Systems,Systems, Inc. promotespromotes NHK’s ppatentsatents and other technical exexpertisepertise and engages in R&D aimed at sharing the benefits of broadcast technollogiesogies with the generalgeneral public.public. Our exhibit includes some of NHK’s patented and ongoing research that are open toto wider appapplication.lication.

FeaturesFeatures

◉ TechTechnologieschnologin gieses rrelated too 8K8 Super Hi-Visionion ・8K aacouacousticallyouststicallysttic transparentntt projectionp oj screenreen forf 8K audio editeditingingng stusststudiosuduudiosiooss and ssmall-ssmall-scaleall-l-scale theaterste ・8K SHVS applicationa that couldcoc d revolutionizeonize medicalmedi technologytechnolog ◉ TechnoTeTechnologieshnologin gies for widwiderderde apapplicationpplicationp cation ・Whole-skyWhoole-skyle livelivive video virtualvirvirtual studioststuudiouudi system based on hybrid sensorssensors ・MIMO*MIMMO*O*1-OFDM*-OFDMM*M 2 equaequalizeralizeral foro multipathm channels with delays in excessexcessss of GGI*I*3 ・HybridcastHyybridcastdc app testerttestere that uususesess commercially available receiverreceiverss too checkchcheeckk appsps perforperformanceormancormance ・SpeechS h manipulationmanipulatiatioon and reprodreproductione duction technology to facilitate eeasieraasier andaan more convenientcconveninientnie speechsp communicationn ◉ Licensingn and technttechnologyhnologyo trtransferransfer NHK’s technotechnologiesec loogiesog arere open foforor professional andd coconsumeconsumermer applicapplicatications.ons. We offeroff consconsultationssultationssu ns regarding lilicensinglicensnsingsi and technicaltecechnicale expertise.e

*1 MIMMIMOO ((Multiple-InputMullttiptiipleiplee-e Input MlMulMultiple-Output):tipti le-Outplee Outputp ): a wirelesswi transmissitransmissionsioon method ususingsining multimultipleple antennass on the transmitting andnd receivingreceiving endends.nds.nd *2 OFDM (Ortho(OrthogonalOrthoogogonalg Frequencycy DivisionDivisiiono Multiplexing): a methodme used in ddigital transmissions whereinw subcarriers are“orthogonal”“or orthogonal”al” too eeach other (i.e.,(i.e.,e crosstalkcroroosstalkoso betweenn subcarrierssubcarrierers is eliminated).eliminated)).. *3 GI (guard(guguard interval):innttervaleer ): The intervalr placedplaced betweenbe symbolsmb to prevent dedeladelayedyed signals from interferinginterferiing with each other.

ForF deddetailsettails and consuconsultationsnsultatinsu atitionsoon on NHK’NNHKHK’s patentss anda otherh r expertise,exxpertise, contactntact NHKNHK EngineeringEngineneeeringe SystemSystems,tems,tems Inc. 1-10-111-110-111 Kinuta, SetagayaSetagaya-ku,ya-a-ku,ku,u, TTokyookokyookyyo 157-8157-8540 TEL8540 TETELTEL (03) 5494-24000 FAXAX (03)( 5494-21522152 URLURURL:RL:RL: hhttp://whttp://www.nes.or.jp///wwwwww.nes.or.jp/ MuseumMuseMuseumsseeu of BroadcastingBroadcastiastingti

90 Years of Radio BroadcastingBroadcasting M LookingLooking bbackack on tthehe earlyearly ddaysays

InIn 1920, the world’s first ever commercial radio station, KDKA, started broadcasting inin PittsburPittsburgh,gh, PennsPennsylvania.ylvania. It caused excitement that quicklyquickly spreadspread around the world.world. In Japan, anticipationanticipation gregreww about having our own radio station.station. One of the key factors that sped up its arrivaarrivall was the fact that radio communicationcommunication pplayedlayed a crucialcrucial rolerole when, in 1923, Tokyo and the surrounding area were struck by the Great KantoKanto EartEarthquake.hquake.

“JOAK,“JOAK, JOAK. This is the TokyoTokyo BroadcastingBroadcasting Station.”Station.” These were the veryvery first wordswords airedaired over JapaneseJapanese raradio,dio, on MMarcharch 22,22, 1925.1925. A temporarytemporary statstationion hhadad beenbeen built in Shibaura, on the grounds of the research laboratory of the then Ministry of Communications, and a 53 meter inclined transmission antenna was set up using one of the lab’lab’s wooden pillars. The broadcast output power was 220 watts. The studio and equipment rooms were housed inside the library of the neighboring technical college.college. On June 1 that same yyear,ear, the Osaka BroadcastinBroadcastingg StationStation (J(JOBK)OBK) beganbegan a 500-watt trial broadcast from a temtemporaryporary facilitfacilityy usinusingg an inverted-Linverted-L ttypeype antenna, and the NagoyaNagoya BroadcastingBroadcasting Station (JOCK)(JOCK) followed with a 1-kilowatt1-kilowatt broadcast on JulJulyy 15. The NagoyaNagoya Station was built within the premisespremises of NagoyaNagoya Castle and had a main buildingbuilding and an annex. There were two largelarge studios on the second floor of the main buildinbuildingg and their broadcast equipmentequipment was manufactmanufacturedured bbyy the Italian company,company, Marconi.Marconi.

BeforeBefore llong,ong, the two-storetwo-storeyy concrete headquartersheadquarters of the TokyoTokyo BroadcastingBroadcasting Station was completedcompleted at AtaAtagoyama.goyama. It was equippedequipped with two anantennatenna towers and threethree studios. It beganbegan regularregular broadcasts on JulyJuly 12, 1925 and had an outputoutput powerpower of 1 kilowatts.kilowatts. The Osaka BroadcastingBroadcasting Station was completedcompleted ththee fofollowingllowing yyearear and commenced regularregular 1-kilowatt1-kilowatt broadcasts on December 1, 1926.1926.

TheThe exhibit lookslooks back at the earlyearly days of Japanese radio broabroadcastingdcasting and features photographs, historicalhistorical materials,materials, and equipment from the time.

TemporaryTemporary FacFacilityility ofof thethe TokyoTokyo TemporaryTemporary FacilityFacility ofof thethe OsakaOsaka BBroadcastingroadcasting StationStation at Shibaura,Shibaura, TokyoTokyo BroadcastingBroadcasting StationStation NagoyaNagoya BroadcastingBroadcasting StationStation (Housed(Housed insideinside thethe librarylibrary ofof thethe thenthen (On(On thethe rooftoprooftop ofof a departmentdepartment store)store) Technical College of Tokyo) ServiceSeSer for ViewersViewerers

DigitalDigital BroadcastingBroadcasting Reception Consultation DesDeskk J DigitalDigital broadcastingbroadcasting receiver systemssystems and hhybridybrid serviceservicess

OOutlineutline

TheThe exhibit aims to familiarize visitors with Hybridcast, NHK OOnn-demand,-demand, and other hybridhybrid services that inteintegrategrate broadcastinbroadcastingg and the Internet. We are alsoalso openopen to ananyy qquestionsuestions youyou maymay have regardingregarding digitaldigital broadcastingbroadcasting includingincluding receiver ssystemsystems and othothere research that NHK is workingworking on to further improveimprove our broadcasbroadcastt serviceservices.s.

FeaturesFeatures

◉ ConneConnectingn ectinng yyour televisitelevisionsisioono tto the broadbandadband Therere areree vvarious services thatthat at youyoy u cann enjoyenjoy by connectingconnectinng yoyouurr tteteltelevisionlevevisioonon to thethe broadband.b WeW offeroff guidanceguiddancedanana e ono how to set upp youyoururr network andnd whathat serviceservsservices are avavailaailable.able.ble.e. ◉ RRoadmapRoadmdmmapm forfo implimplementingemmentinm ngn 4K and 8K broadcasting The MinistryMiM ofo InternaInternalernanala AffaAAffairsff irsi s and Communications has recently publishedpublip blisbli hheed ann interimintinterime reportreporep on theth follofollow-upow-up-upp of thtthehhe“4K/8K“4K K/8KK/ Roadmap”RoaRoR admap”. We will offer updates on thisthhish andand othererr topicstopiopics relatingtingng tot advadadvancementsdvancementsdvancva e off ouro r broadcbbroadcastcaast servicesservices..

●This●Thhisi exhibit iss presented by NHK’N s EnginEngineeringinneeringg Administration Department.Department. Poster Exhibit

Updating of Scrambling Scheme P1 - For smooth migration without affecting the existing scheme - We are studying various ways of updating broadcasting scrambling schemes to maintain their security. The updating method shown here enables migration to a new scheme without affecting the TV sets that use the existing scheme. It supports both new and existing TV sets during the transition period by allowing the use of both schemes.

Emotional Speech Conversion Technique for Neutral Recorded Speech P2 - Toward more expressive speech conversion ‒ We are researching technologies that will make it easier to add complex production effects to recorded and synthesized speech. We have developed a technology to add emotional expressions to speech read by a speaker by processing it with emotional expressions (such as delight, anger, and sorrow) of a different speaker.

Haptic Technology to Convey Shape and Hardness of 3D Objects P3 - Toward a service that can convey the sense of touch - To enable services that remotely convey the sense of touch, we have been studying a haptic presentation technology that can reproduce the shape and hardness of an object from digital data. Shown here are the results of an evaluation of the relationship between the number of stimulus points on the fingertip and the ease of conveying an object’s shape, as well as a haptic presentation device we prototyped. Higher-resolution Image Enhances Viewer’s Depth Sensation P4 - Relationship between display resolution and depth sensation - 8K Super Hi-Vision video can give viewers a stronger depth sensation than the current Hi-Vision. To look into the cause, we conducted a psychological experiment using figures with various shades to express a three-dimensional shape. The results are reported here.

Operation Principle of New Magnetic Nanowire Memory P5 - High-speed magnetic recording device with no moving parts - With the goal of realizing a high-speed, compact recording device, we are developing a recording device with no moving parts that utilizes the motion of nano-sized magnetic domains on magnetic nanowires. Shown here are the technologies used in the operation principle of this recording device: magnetic domain formation (recording), magnetic domain driving using currents, and magnetization status detection (reproduction).

Fabrication Technology for Flexible OLED Displays Using High-mobility Oxide Semiconductor ITZO P6 - For large, sheet-type displays - With the goal of realizing large, sheet-type 8K SHV displays, we are researching technology for fabricating flexible displays that have high-mobility ITZO-TFTs with a back-channel-etched structure, which is effective for a large screen with many pixels, and inverted OLEDs, which extend the lifetime of the display. Field Emitter Array Image Sensor with HARP Film P7 - For compact, super-high-sensitive Hi-Vision cameras - To build a compact Hi-Vision camera with extremely high sensitivity, we are researching imaging devices that combine a field emitter array with high-sensitivity HARP photoconductive film. Shown here are the electrostatic-focusing field-emitter array and the active-matrix drive circuit technology that are required for this device to support Hi-Vision. Solid-state Image Sensor Overlaid with Photoelectric Conversion Layer P8 - Toward high-sensitivity cameras for 8K - To improve the sensitivity of 8K Super Hi-Vision cameras, we are researching solid-state image sensors overlaid with a photoelectric conversion layer able to multiply electric charges simply by applying a low voltage. The results of our attempts to improve the characteristics of the photoelectric conversion layers are reported here.

Pixel-parallel Processing Three-dimensional Integrated Imaging Device P9 - Toward future cameras for capturing three-dimensional images - We are studying a three-dimensional integrated imaging device with pixel-parallel processing that combines ultra-high-definition images with a high frame rate and that will contribute to the development of future cameras for capturing three-dimensional images. Shown here are the architecture of the signal processing circuit, the technology to manufacture the device, and the characteristics of the prototype device.

Interactive Exhibit

T1 Let’s Make Faces! Try smiling, looking astonished, or seeming angry in front of our special screen. See what happens!

T2 Let’s see if you can touch it! Put on our special ring and try touching the object displayed inside the box. Can you feel its shape and firmness? Can you feel it with your eyes closed?

T3 How are colors made in an LCD television? Look inside an LCD (liquid crystal display) television and you’ll find lots of blue LEDs at work! Let’s see how these Nobel Prize-winning LEDs are used to create colors of LCD screens.

T4 Let’s Put on a Sound Helmet! Try out our special headgear equipped with headphones and a smartphone to experience the immersive world of 22.2 multi-channel sound. Turn your head around and you’ll perceive that the directions of the sounds change naturally. Keynote Speech

To be held on May 28（Thu.） Japanese language only Keynote Speech

NHK STRL R&D plan (FY 2015-2017) and 8K UHDTV End-to-end Experiments via a Broadcasting Satellite

■ Toru Kuroda (Director of Science & Technology Research Laboratories, NHK) am1０：2 0 ～ 1 1：0 0

NHK has recently published its latest three-year corporate plan (FY 2015-2017), focusing on the rapidly changing media and international environment and boosting its preparations for the Olympic and Paralympic Games to be held in Tokyo in 2020. The plan is providing broadcasting and services of the world’s highest standards by the year 2020, utilizing leading edge technologies and carrying forward its“challenge” and“reform,” as the first phase of NHK’s step-up to the milestone. Among its five major objectives is creating broadcasting and services that open up new possibilities. In response to NHK’s corporate plan, Science & Technology Research Laboratories (STRL) has also published its own R&D plan (FY 2015-2017) with an eye not only towards the year 2020 but two decades ahead. This keynote speech will overview STRL’s research and development strategies during the three years. Its mission includes enhancing R&D for practical use and advancement of 8K UHDTV (Ultra High Definition Television), and also technologies for Hybridcast and other Internet-based services, advanced content production technologies, user-friendly information presentation, and innovative broadcast services. The speech will also include detail about end-to-end experiments via a broadcasting satellite of 8K UHDTV. The Ministry of Internal Affairs and Communications laid out a“Roadmap” last year in which 8K UHDTV is set to begin test broadcasting on a satellite in 2016 and roll out full broadcasting by 2018. NHK is speeding up its preparations to meet this timeline, and we will demonstrate 8K end-to-end experiments via a broadcasting satellite at the STRL Open House. We will exhibit our end-to-end 8K broadcasting system, including cameras, production systems such as recording device, equipment for HEVC codec and MMT multiplexing, transmission equipment for an advanced wide-band digital satellite, displays, and audio systems. This will be an opportunity for our visitors to see that we are all set to start 8K test broadcasting in 2016.

Keynote Speech Next-Generation Broadcasting and Social Innovation

■ Osamu Sudoh am11：00～11：40 (Professor, Ph.D., Graduate School of Interdisciplinary Information Studies, University of Tokyo President, Next Generation Television & Broadcasting Promotion Forum)

Japan is diving headlong into an aging society with low birthrate. How can we realize a richer and more vibrant, culturally fulfilling society when we are confronted by dwindling population and regional disparities? How will we find answers to better our environment, reconcile our pluralistic society, and solve food and energy concerns in this increasingly diverse and segmented global community? In face of these issues, there is greater need for broadcast media to engage with the latest technologies to improve their services and enhance their journalistic and culture-defining roles. The television is now a highly accessible information tool available in almost every household. Advancing its functionalities and usability has become ever more important in creating universal services where each and everyone can comfortably interact with sophisticated information. Japan led the world by starting 4K test broadcasting in 2014. It will launch 8K test broadcasting in 2016 and move onto full broadcasting by 2018. When Tokyo hosts the Olympic and Paralympic Games in 2020, a range of games will likely be made available in immersive 4K and 8K quality for both the home viewing and public live-screenings. This is how the Ministry of Internal Affairs and Communications proposes it, as published in its“Roadmap” for the early implementation of 4K and 8K broadcasting. But the year 2020 is only a milestone. Rolling out 4K or 8K broadcasting is not the goal. 8K is the leading edge of technology and broadcast services. Japan is its proud champion and broadcasters play a central role in shaping the Japanese audiovisual scene. Together with electronics manufacturers, internet-based service providers, and technology vendors, broadcasters are now expected to apply those technology and services to take journalism and entertainment to a new level. Also it is very important that these kinds of technologies and their applications advance public welfare, medical care, and government services, boost arts and culture, enable higher-quality manufacturing, and realize innovative services for the safety and security of the people. This session seeks to draw insight on how we can combine our wisdom so that Japan can continue to shape the world’s audiovisual scene and lead the industry to create a richer society and play a vital role in solving the various problems that we are faced with. Lecture

To be held on May 28（Thu.） Japanese language only Lecture ❶ Development and Installation of 8K Super Hi-Vision Facilities in View of the Test Broadcasting in 2016

■Kohji Mitani (Head of Super Hi-Vision System Design & Development Division, pm０：2 0 ～ 1：0 0 Engineering Administration Department, NHK)

In line with the Super Hi-Vision (SHV)“Roadmap” , which the Ministry of Internal Affairs and Communications has been working with relevant parties to draw, NHK is pushing forward with the development and installation of 8K SHV facilities, from content production to transmission, broadcasting and reception. Advanced wide band digital satellite broadcasting system incorporates the latest technologies in order to realize 4K and 8K broadcasting. This includes HEVC (High Efficiency Video Coding), a new compression standard for efficient transmission of high bit-rate video, and MMT (MPEG Media Transport), a multiplexing technology enabling innovative new services that merges broadcast and internet. Using these new technologies, we are developing 8K transmission and broadcasting equipment as well as 8K prototype receivers. From the production side point of view, our focus with the development and installation is on improving agility and constructing an efficient production system so that producers can create fascinating content with the best of 8K features. For example, we have developed a compact, 33 megapixel single-chip 8K camera and a compact recorder/player with signal compression using high-speed, high-capacity memory system. We are also constructing 8K editing and audio mixing studios, 8K OB-Vans capable of maximum 10 cameras, and 22.2 multi-channel audio OB-Vans that are compatible with conventional stereo and 5.1 surround audio production. This lecture aims to share the latest developments of 8K SHV equipment and facilities, especially in view of the 8K test broadcasting coming up next year.

Lecture ❷

Program Production in 8K Super Hi-Vision: Overview from the Field

■Kohei Nakae (Deputy Director of 8K SHV Technical Production Development, pm1：0 0 ～ 1：4 0 Broadcast Engineering Department, NHK)

There are three main technical divisions at NHK: Science & Technology Research Laboratories (STRL) which concentrates on research, the Engineering Administration Department which focuses on planning and development, and the Broadcast Engineering Department which is the group“in the field” in charge of program production and output. All three are linked organically to advance 8K Super Hi-Vision (8K SHV). We give each other feedback as we go through research, development, and online testing processes, furthering our research and making improvements. 8K can only move forward when this three-part wheel is able to rotate smoothly. STRL has worked especially closely with the field group to turn fundamental researches into wider application, thus contributing to the development of broadcast technology. STRL started its search for the“ultimate 2D television system” in 1995. Seven years later, the first prototype of an 8K camera was developed. This marked the beginning of collaboration between STRL and Broadcast Engineering Department. By the time a full-fledged third generation 8K camera was completed in 2010, the cooperative wheel of research, development, and field divisions began to pick up speed. The first major international operation in 8K was the 2012 London Olympic Games. It was followed by the 2014 Sochi Winter Olympic Games and FIFA World Cup in Brazil, along with a string of domestic sporting events such as golf, sumo, tennis, and baseball, each involving complex multi-camera operation and live transmission. In the field of drama and documentaries, we are pushing forward with an end-to-end 8K production system that covers shooting, recording, editing, graphics and visual effects, and multi-audio post production. This lecture will provide an overview of how our research, development, and field divisions work hand in hand to meet the challenges we face in implementing 8K for broadcast. Research Presentation

To be held on May 28（Thu.） Japanese language only Research Presentation ❶ Content Production Technology for Full-Specification 8K Super Hi-Vision

■Tetsuomi Ikeda (Head of Advanced Television Systems Research Division) pm 2：20～2：50

Preparations are underway throughout Japan for the start of 8K Super Hi-Vision (8K SHV) broadcasting ｂｙ 2018, but at STRL we are looking beyond that moment to a day when the most advanced form of 8K SHV will be deployed. The video format of this full-specification 8K SHV has the full resolution (33 megapixels in each R, G, and B channel), a frame rate of 120 Hz, a wide color gamut inclusive of almost all surface colors, and a 12-bit depth for each color. Its data rate is up to 144 Gbps. We also intend to include high dynamic range technology in this system, so that highlight areas of the subject can be reproduced more faithfully. To handle such extremely high data rates, capture and display devices must be driven at very high speeds, and technology must be developed for high-speed real-time signal processing as well as high-capacity data recording and signal transmission. To expand the dynamic range and widen color gamut in cameras, the spectral characteristics must be improved and noise must be reduced, and various characteristics of the light sources in the display equipment must be improved. Another aspect to make 8K SHV more practical will be to make its equipment smaller. In particular, the advent of compact 8K SHV cameras will expand the range of production options. We present the state of research and development on various technologies intended to resolve these issues.

Research Presentation ❷ 8K Super Hi-Vision Transmission Technology

■Tomohiro Saito (Head of Advanced Transmission Systems Research Division) p m 2：5 0 ～3：2 0

8K Super Hi-Vision (8K SHV) transmission technologies involves not only sending programming to homes that is “broadcasting”, but also“contribution transmissions” in which video and audio materials are sent from off-site program production venues to the broadcasting station. NHK STRL has been researching and developing wireless and wired systems for broadcasting and contribution transmissions of 8K SHV. This report gives an overview of a satellite broadcast system, which has been standardized within Japan for the test broadcasts slated to begin in 2016, a cable television system, which will use existing infrastructure and is currently being standardized, and terrestrial broadcasting technologies, on which there is ongoing research to increase the transmission capacity. Regarding contribution transmissions, this report describes optical technology able to transmit uncompressed program materials at 72 Gbps by using wavelength multiplexing and a field pickup unit (FPU) able to send 20-Gbps signals over short distances in the 120-GHz band. It also introduces an IP system that can transmit compressed program materials at a few hundred Mbps and which was used for public viewings of the Olympics as well as an FPU able to transmit over long distances.

Research Presentation ❸ R&D on Devices for Home Viewing of 8K Super Hi-Vision

■Naoto Hayashi (Head of Advanced Functional Devices Research Division) pm3：20～3：50

8K Super Hi-Vision (8K SHV) is an audio-visual system designed to achieve a strong sense of realism and presence, and it is based on research in human science areas such as visual perception. The ideal viewing environment includes a large-screen, ultra-high-resolution display and a 22.2 multichannel sound with 24 loudspeakers. The keys to home viewing will be thin and lightweight sheet-type large-screen displays and the ability to reproduce 3D spatial sound with fewer loudspeakers. This report introduces the state of R&D on 8K SHV displays and 3D sound systems suitable for home viewing. It introduces LCD displays that have been developed for ultra-high definition video as well as initiatives, based on recent research at STRL, toward implementing a practical sheet-type organic electroluminescence (EL) display. Regarding 3D sound systems, it introduces the state of R&D on a display-frame loudspeaker system for the home, which uses trans-aural playback technology to present 22.2 multichannel sound on fewer loudspeakers. 8K Super Hi-Vision Theatre

May 29 (Fri) ‒ May 31 (Sun) 10:00 am ‒ 5:00 pm at NHK STRL Auditorium (Restricted to one viewing per entry)

Final screening on each day is scheduled to end at 5:00 pm. (At 15-minute intervals)

NHK Symphony Orchestra: Tchaikovsky Symphony No.6 "Pathetique" - 3rd movement Come and experience classic fans’ best-loved orchestra performance at the 8K Super Hi-Vision Theatre. Our 8K screening will deliver the 3rd movement of Tchaikovsky’s Symphony No.6, "Pathetique" - from NHK Symphony Orchestra’s performance in September 2014 ‒ with Honorary Conductor Herbert Blomstedt. The immersive 33-megapixel ultra-high-definition video captured by three 8K cameras accompanied by 22.2 multichannel 3D sound was marveled at also by Maestro Blomstedt himself. It will instantly take you on a virtual trip to one of the greatest concert halls in the world.

Events

May 30 (Sat) and May 31 (Sun)

Guided tours

10:20 am ‒ 3:30 pm STRL researchers will guide you Scheduled 32 times a day. through the exhibits. Duration: approx. 1hr

Stamp rally

Look for rubber-stamps of various characters while 10:00 am ‒ 4:30 pm you enjoy the exhibits. Stamp them on the right answers!

Fun crafts (on 12nd Floor)

Fun events for families and friends. Enjoy mask making from 10:00 am ‒ 4:30 pm “Nosy’s Inspiring Atelier” and try ping-pong ball building match from “Sciencer”!

*Please note each event has limited capacity. 1-10-1 Kinuta, Setagaya-ku Tokyo, 157-8510, Japan http://www.nhk.or.jp/strl/open2015/