Studies on the Bit Rate Requirements for a HDTV Format with 1920 1080
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Adaptive Quantization Matrices for High Definition Resolutions in Scalable HEVC
Original citation: Prangnell, Lee and Sanchez Silva, Victor (2016) Adaptive quantization matrices for HD and UHD display resolutions in scalable HEVC. In: IEEE Data Compression Conference, Utah, United States, 31 Mar - 01 Apr 2016 Permanent WRAP URL: http://wrap.warwick.ac.uk/73957 Copyright and reuse: The Warwick Research Archive Portal (WRAP) makes this work by researchers of the University of Warwick available open access under the following conditions. Copyright © and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable the material made available in WRAP has been checked for eligibility before being made available. Copies of full items can be used for personal research or study, educational, or not-for profit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. Publisher’s statement: © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. A note on versions: The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher’s version. -
Dell 24 USB-C Monitor - P2421DC User’S Guide
Dell 24 USB-C Monitor - P2421DC User’s Guide Monitor Model: P2421DC Regulatory Model: P2421DCc NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners. 2020 – 03 Rev. A01 Contents About your monitor ......................... 6 Package contents . 6 Product features . .8 Identifying parts and controls . .9 Front view . .9 Back view . 10 Side view. 11 Bottom view . .12 Monitor specifications . 13 Resolution specifications . 14 Supported video modes . 15 Preset display modes . 15 MST Multi-Stream Transport (MST) Modes . 16 Electrical specifications. 16 Physical characteristics. 17 Environmental characteristics . 18 Power management modes . 19 Plug and play capability . 25 LCD monitor quality and pixel policy . 25 Maintenance guidelines . 25 Cleaning your monitor. .25 Setting up the monitor...................... 26 Attaching the stand . 26 │ 3 Connecting your monitor . 28 Connecting the DP cable . 28 Connecting the monitor for DP Multi-Stream Transport (MST) function . 28 Connecting the USB Type-C cable . 29 Connecting the monitor for USB-C Multi-Stream Transport (MST) function. 30 Organizing cables . 31 Removing the stand . 32 Wall mounting (optional) . 33 Operating your monitor ..................... 34 Power on the monitor . 34 USB-C charging options . 35 Using the control buttons . 35 OSD controls . 36 Using the On-Screen Display (OSD) menu . -
Comparison of HDTV Formats Using Objective Video Quality Measures
Multimed Tools Appl DOI 10.1007/s11042-009-0441-2 Comparison of HDTV formats using objective video quality measures Emil Dumic & Sonja Grgic & Mislav Grgic # Springer Science+Business Media, LLC 2010 Abstract In this paper we compare some of the objective quality measures with subjective, in several HDTV formats, to be able to grade the quality of the objective measures. Also, comparison of objective and subjective measures between progressive and interlaced video signal will be presented to determine which scanning emission format is better, even if it has different resolution format. Several objective quality measures will be tested, to examine the correlation with the subjective test, using various performance measures. Keywords Video quality . PSNR . VQM . SSIM . TSCES . HDTV. H.264/AVC . RMSE . Correlation 1 Introduction High-Definition Television (HDTV) acceptance in home environments directly depends on two key factors: the availability of adequate HDTV broadcasts to the consumer’s home and the availability of HDTV display devices at mass market costs [6]. Although the United States, Japan and Australia have been broadcasting HDTV for some years, real interest of the general public appeared recently with the severe reduction of HDTV home equipment price. Nowadays many broadcasters in Europe have started to offer HDTV broadcasts as part of Pay-TV bouquets (like BSkyB, Sky Italia, Premiere, Canal Digital ...). Other major public broadcasters in Europe have plans for offering HDTV channels in the near future. The announcement of Blu-Ray Disc and Game consoles with HDTV resolutions has also increased consumer demand for HDTV broadcasting. The availability of different HDTV image formats such as 720p/50, 1080i/25 and 1080p/50 places the question for many users which HDTV format should be used with which compression algorithm, together with the corresponding bit rate. -
Detectability Model for the Evaluation of Lossy Compression Methods on Radiographic Images Vivek Ramaswami Iowa State University
Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1996 Detectability model for the evaluation of lossy compression methods on radiographic images Vivek Ramaswami Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Electrical and Electronics Commons Recommended Citation Ramaswami, Vivek, "Detectability model for the evaluation of lossy compression methods on radiographic images" (1996). Retrospective Theses and Dissertations. 250. https://lib.dr.iastate.edu/rtd/250 This Thesis is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Detectability model for the evaluation of lossy compression methods on radiographic images by Vivek Ramaswami A thesis submitted to the graduate faculty in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Major: Electrical Engineering Major Professors: Satish S. Udpa and Joseph N. Gray Iowa State University Ames, Iowa 1996 Copyright © Vivek Ramaswami, 1996. All rights reserved. 11 Graduate College Iowa State University This is to certify that the Master's thesis of Vivek Ramaswami has met the t hesis requirements of Iowa State University Signature redacted for privacy 111 TABLE OF CONTENTS ACKNOWLEDGEMENTS IX 1 INTRODUCTION . 1 2 IMAGE COMPRESSION METHODS 5 201 Introduction o 0 0 0 0 0 5 2o2 Vector quantization 0 0 ..... 5 20201 Classified vector quantizer 6 20202 Coding of shade blocks o ..... -
EN User Manual 1 Customer Care and Warranty 28 Troubleshooting & Faqs 32 Table of Contents
499P9 www.philips.com/welcome EN User manual 1 Customer care and warranty 28 Troubleshooting & FAQs 32 Table of Contents 1. Important ...................................... 1 1.1 Safety precautions and maintenance ................................. 1 1.2 Notational Descriptions ............ 3 1.3 Disposal of product and packing material .......................................... 4 2. Setting up the monitor .............. 5 2.1 Installation .................................... 5 2.2 Operating the monitor .............. 9 2.3 Built-in Windows Hello™ pop- up webcam .................................14 2.4 MultiClient Integrated KVM .....16 2.5 MultiView ..................................... 17 2.6 Remove the Base Assembly for VESA Mounting ..........................18 3. Image Optimization ..................19 3.1 SmartImage .................................19 3.2 SmartContrast ............................20 3.3 Adaptive Sync .............................21 4. HDR ............................................. 22 5. Technical Specifications ......... 23 5.1 Resolution & Preset Modes ...26 6. Power Management ................ 27 7. Customer care and warranty . 28 7.1 Philips’ Flat Panel Displays Pixel Defect Policy ..............................28 7.2 Customer Care & Warranty ...... 31 8. Troubleshooting & FAQs ......... 32 8.1 Troubleshooting ........................ 32 8.2 General FAQs ............................. 33 8.3 Multiview FAQs .........................36 1. Important discoloration and damage to the 1. Important monitor. This electronic -
Impact of Adaptation Dimensions on Video Quality
Impact of Adaptation Dimensions on Video Quality Jens Brandt and Lars Wolf Institute of Operating Systems and Computer Networks (IBR), Technische Universitat¨ Braunschweig, Germany [email protected] Abstract—The number and types of mobile devices which well as the network conditions, may vary more often over time are capable of presenting digital video streams is increasing compared to static devices. Thus, the experience of watching constantly. In most cases the devices are trade-offs between video streams on mobile devices differs to a great extent from powerful all-purpose computers and small mobile devices which are ubiquitously available and range from cellular phones to those scenarios related to static displays usually found in the notebooks. This great heterogeneity of mobile devices makes area of home entertainment. For sequences from soccer games video streaming to such devices a challenging task for content McCarthy et al. observed that potential users preferred lower providers. Each single device has its own capabilities and indi- frame rates but higher detail resolution on mobile devices [2]. vidual requirements, which need to be considered when sending For other genres similar findings were presented for scalable a video stream to it. Thus, to support a great range of different devices, the video streams need to be adapted to the requirements video coding by Eichhorn and Ni in [3]. Besides concentration of each device. To get an idea of how different adaptation methods solely on the temporal resolution of a video stream, in our may affect the experience of users watching a streamed video on a work we additionally investigated the effect of adapting the mobile device, we inspect the influence of three major adaptation spatial and the detail resolution as well. -
BA(Prog)III Yr 14/04/2020 Displays Interlacing and Progressive Scan
BA(prog)III yr 14/04/2020 Displays • Colored phosphors on a cathode ray tube (CRT) screen glow red, green, or blue when they are energized by an electron beam. • The intensity of the beam varies as it moves across the screen, some colors glow brighter than others. • Finely tuned magnets around the picture tube aim the electrons onto the phosphor screen, while the intensity of the beamis varied according to the video signal. This is why you needed to keep speakers (which have strong magnets in them) away from a CRT screen. • A strong external magnetic field can skew the electron beam to one area of the screen and sometimes caused a permanent blotch that cannot be fixed by degaussing—an electronic process that readjusts the magnets that guide the electrons. • If a computer displays a still image or words onto a CRT for a long time without changing, the phosphors will permanently change, and the image or words can become visible, even when the CRT is powered down. Screen savers were invented to prevent this from happening. • Flat screen displays are all-digital, using either liquid crystal display (LCD) or plasma technologies, and have replaced CRTs for computer use. • Some professional video producers and studios prefer CRTs to flat screen displays, claiming colors are brighter and more accurately reproduced. • Full integration of digital video in cameras and on computers eliminates the analog television form of video, from both the multimedia production and the delivery platform. • If your video camera generates a digital output signal, you can record your video direct-to-disk, where it is ready for editing. -
A Review and Comparison on Different Video Deinterlacing
International Journal of Research ISSN NO:2236-6124 A Review and Comparison on Different Video Deinterlacing Methodologies 1Boyapati Bharathidevi,2Kurangi Mary Sujana,3Ashok kumar Balijepalli 1,2,3 Asst.Professor,Universal College of Engg & Technology,Perecherla,Guntur,AP,India-522438 [email protected],[email protected],[email protected] Abstract— Video deinterlacing is a key technique in Interlaced videos are generally preferred in video broadcast digital video processing, particularly with the widespread and transmission systems as they reduce the amount of data to usage of LCD and plasma TVs. Interlacing is a widely used be broadcast. Transmission of interlaced videos was widely technique, for television broadcast and video recording, to popular in various television broadcasting systems such as double the perceived frame rate without increasing the NTSC [2], PAL [3], SECAM. Many broadcasting agencies bandwidth. But it presents annoying visual artifacts, such as made huge profits with interlaced videos. Video acquiring flickering and silhouette "serration," during the playback. systems on many occasions naturally acquire interlaced video Existing state-of-the-art deinterlacing methods either ignore and since this also proved be an efficient way, the popularity the temporal information to provide real-time performance of interlaced videos escalated. but lower visual quality, or estimate the motion for better deinterlacing but with a trade-off of higher computational cost. The question `to interlace or not to interlace' divides the TV and the PC communities. A proper answer requires a common understanding of what is possible nowadays in deinterlacing video signals. This paper outlines the most relevant methods, and provides a relative comparison. -
Video Terminology Video Standards Progressive Vs
VIDEO TERMINOLOGY VIDEO STANDARDS 1. NTSC - 525 Scanlines/frame rate - 30fps North & Central America, Phillipines & Taiwan . NTSC J - Japan has a darker black 2. PAL - 625 scanlines 25 fps Europe, Scandinavia parts of Asia, Pacific & South Africa. PAL in Brazil is 30fps and PAL colours 3. SECAM France Russia Middle East and North Africa PROGRESSIVE VS INTERLACED VIDEO All computer monitors use a progressive scan - each scan line in sequence. Interlacing is only for CRT monitors. LCD monitors work totally differently - no need to worry about. Interlacing is for broadcast TV. Every other line displayed alternatively. FRAME RATES As we transition from analogue video to digitla video. Film is 24 fps, PAL video 25 fps. NTSC 30fps. Actually film and NTSC are slightly different but we don't need to worry about that for now. IMAGE SIZE All video is shot at 72 px/inch - DV NTSC - 720 x 480 (SD is 720 x 486) DV PAL - 720 x 576 (SD PAL is 720 x 576) HD comes in both progressive and interlaced. HD480i is usual broadcast TV 480p is 480 progressive. 720i is 720 interlaced 720p is progressive. 720 means 720 vertical lines 1080 is 1080 vertical lines. 1080i is most popular. 720p is 1280 x 720, HD 1080 is 1920x1080px. All HD formats are 16:9 aspect ratio. Traditional TV is 4:3 aspect ratio. HDV is 1440 x 1080. New format - is it the new HD version of DV? Cameras like the Sony and JVC make minor alterations to this format when shooting In summary HD 1080i = 1920 x 1080 HD 720p = 1280 x 720 Traditional = 720 x 480 (NTSC) 720 x 576 (PAL) VIDEO OUTPUTS Analog Composite, S-Video, Component in increasing quality. -
Developed by the Consumer Technology Association Video Division
4K Ultra High-Definition TV A display system may be referred to as 4K Ultra High-Definition if it meets the following minimum performance attributes: Display Resolution – Has at least 8 million active pixels, with at least 3840 horizontally and at least 2160 vertically. Physical pixels shall be individually addressable such that the horizontal and vertical resolution above can be demonstrated over the full range of colors provided by the display. Aspect Ratio – The width to height ratio of the display’s native resolution is 16:9 or wider. Upconversion – The display is capable of upscaling HD video and displaying it at 4K Ultra High- Definition display resolution. Digital Input – Has one or more HDMI inputs supporting at least 3840x2160 native content resolution at 24p, 30p, & 60p frames per second. At least one of the 3840x2160 HDMI inputs shall support HDCP v2.2 or equivalent content protection. Colorimetry – Processes 2160p video inputs encoded according to ITU-R BT.709 color space, and may support wider colorimetry standards. Bit Depth – Has a minimum bit depth of 8 bits. Connected 4K Ultra High-Definition TV A display system may be referred to as Connected 4K Ultra High-Definition (or Connected 4K UHD) if it meets the following minimum performance attributes: 4K Ultra High-Definition Capability – Meets all of the requirements of CTA’s 4K Ultra High-Definition Display Characteristics V3. Video Codec – Decodes IP-delivered video of 3840x2160 resolution that has been compressed using HEVC* and may decode video from other standard encoders. Audio Codec – Receives and reproduces, and/or outputs multichannel audio. -
The H.264 Advanced Video Coding (AVC) Standard
Whitepaper: The H.264 Advanced Video Coding (AVC) Standard What It Means to Web Camera Performance Introduction A new generation of webcams is hitting the market that makes video conferencing a more lifelike experience for users, thanks to adoption of the breakthrough H.264 standard. This white paper explains some of the key benefits of H.264 encoding and why cameras with this technology should be on the shopping list of every business. The Need for Compression Today, Internet connection rates average in the range of a few megabits per second. While VGA video requires 147 megabits per second (Mbps) of data, full high definition (HD) 1080p video requires almost one gigabit per second of data, as illustrated in Table 1. Table 1. Display Resolution Format Comparison Format Horizontal Pixels Vertical Lines Pixels Megabits per second (Mbps) QVGA 320 240 76,800 37 VGA 640 480 307,200 147 720p 1280 720 921,600 442 1080p 1920 1080 2,073,600 995 Video Compression Techniques Digital video streams, especially at high definition (HD) resolution, represent huge amounts of data. In order to achieve real-time HD resolution over typical Internet connection bandwidths, video compression is required. The amount of compression required to transmit 1080p video over a three megabits per second link is 332:1! Video compression techniques use mathematical algorithms to reduce the amount of data needed to transmit or store video. Lossless Compression Lossless compression changes how data is stored without resulting in any loss of information. Zip files are losslessly compressed so that when they are unzipped, the original files are recovered. -
EN User Manual 1 Customer Care and Warranty 27 Troubleshooting & Faqs 31 Table of Contents
B Line 346B1 www.philips.com/welcome EN User manual 1 Customer care and warranty 27 Troubleshooting & FAQs 31 Table of Contents 1. Important ...................................... 1 9.3 Multiview FAQs .........................34 1.1 Safety precautions and maintenance ................................. 1 1.2 Notational Descriptions ............ 3 1.3 Disposal of product and packing material .......................................... 3 2. Setting up the monitor .............. 5 2.1 Installation .................................... 5 2.2 Operating the monitor .............. 8 2.3 MultiClient Integrated KVM ......11 2.4 MultiView .....................................12 2.5 Remove the Base Assembly for VESA Mounting ..........................14 3. Image Optimization ..................16 3.1 SmartImage .................................16 3.2 SmartContrast ............................. 17 3.3 Adaptive Sync .............................18 4. Designs to prevent computer vision syndrome (CVS) .............19 5. PowerSensor™ ..........................20 6. Technical Specifications ......... 22 6.1 Resolution & Preset Modes ...25 7. Power Management ................26 8. Customer care and warranty . 27 8.1 Philips’ Flat Panel Displays Pixel Defect Policy .............................. 27 8.2 Customer Care & Warranty .....30 9. Troubleshooting & FAQs .......... 31 9.1 Troubleshooting ......................... 31 9.2 General FAQs ............................. 32 1. Important proper cooling of the monitor’s 1. Important electronics. This electronic user’s