Robust Scalable Video Compression Using Multiple
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Video Basics ---Major Ref
Video Basics ---major ref. From Ch.5 of textbook 2 ■ Introduction ---- video industry ■ Video Imaging ---- video scan, aspect ratio ■ Color and Composite & component systems ■ From Analog To Digital Video ■ Spatial Conversions ---- video formats ■ Temporal Conversions ■ Mixing And Keying @NTUEE 1 DSP/IC Lab Video Environments Satellite DVB-S downstream(max 90 Mbps) DSS Cable Modem Cable Network DVB-C downstream(max 40 Mbps) OpenCable Home Connection DSTB IEEE 1394 / USB Ethernet 10 Mbps….. Terrestrial DVB-T/ ATSC (Plug&Play , high-data-rate) Interaction Channel DTV set DirecPC/ DirecDuo (1-way / 2-way)1. Satellite( fast PSTN/ ISDN 2. Cable Modem ( QPSK, TCP / IP for PSTN/ ISDN modem 3. SDSL / ADSL / VDSL ….. @NTUEE 2 DSP/IC Lab 1 Video Service Environments Service Provision HFC POTS Wireless Cable DVB-S DVB-C (Full Service (xDSL access) (MMDS) DVB-T (high speed BB) (Cable Modem) Network) TCP / IP Hybrid Services DSTB Residential LAN (IR, RF, Wired) @NTUEE 3 DSP/IC Lab F ãñìµ@ûì > r Gï=.1 *<ÎPU½ÿ½CD *¶1nñG *ÐÍV PC ;^éuu *ñ<uïÚí Internet w7Home SpoppingHome Banking…. *PPV 2âSaDO"H2<_G.(VOD)ÛÚí ö^éGï=. *ö7GïA2Uf÷ ß[1nЯrn1<t *>1ʺ=.²ÁÞ+Gï STBw¯Gï=.1Æ *"Gï=.²2òGï STB Þ1äh¼oZÐõ1"2¤ Gï STB aöÞ^éGï=.> * õ1n<tñ)ËàÁréï=éC 4 *Gï>h Úü¶Êº=.AÓ-I FMMedium Wave ¤µÚí1 / R *Gï>Áä÷1 transm ittersÇt1ä÷ *Gï>r1ñ² ô<Gï=.> *Î BBC aGï=.Ú7ÂbÍÈzéúrp¾câ> DTT > *BDB 2£< 30! DTT nÚí *~£U>;HÞr> HDTV/SDTV > *BSkyB ~£ 6 ´[uSr> 200 !nGïá#Úí *TCIComcastÛUÀ MSOb 1997 £¦¬[àGï Cable Úí *Flextech $} BBC >Ë1Gïn(å UKFM) ö´^éGï=.> *1994 £¦Gï DBS I 1996 £¦[JGïá#r> *1997£¦Gï Cable Úír> *1998 £Î DTT r>ʺ=.²ñhk¶ 12ß 15£1´t Ngñ·ëæJUJT702::9 @NTUEE 4 DSP/IC Lab 2 Applications of Digital Video ¸®ñ *Î]]XÇæ *Internetÿñ *ñ'$7Åg e-mailì½WWW.. -
CT8021 H.32X G.723.1/G.728 Truespeech Co-Processor
CT8021 H.32x G.723.1/G.728 TrueSpeech Co-Processor Introduction Features The CT8021 is a speech co-processor which · TrueSpeechâ G.723.1 at 6.3, 5.3, 4.8 and performs full duplex speech compression and de- 4.1 kbps at 8KHz sampling rate (including compression functions. It provides speech G.723.1 Annex A VAD/CNG) compression for H.320, H.323 and H.324 · G.728 16 Kbps LD-CELP Multimedia Visual Telephony / Video · Download of additional speech compression Conferencing products and DSVD Modems. The software modules into external sram for CT8021 has built-in TrueSpeechâ G.723.1 (for TrueSpeechâ 8.5, G.722 & G.729-A/B H.323 and H.324) as well as G.728 LD-CELP · Real-time Full duplex or Half duplex speech speech compression (for H.320). This combination compression and decompression of ITU speech compression standards within a · Acoustic Echo Cancellation concurrent with single device enables the creation of a single full-duplex speech compression multimedia terminal which can operate in all · Full Duplex standalone Speakerphone types of Video Conferencing systems including · Host-to-Host (codec-less) and Host-CODEC H.320 ISDN-based, H.324 POTS-based, and modes of operation H.323 LAN/Internet-based. TrueSpeechâ G.723.1 · Parallel 8-bit host interface provides simple provides compressed data rates of 6.3 and 5.3 memory-mapped I/O host connection. Kbps and includes G.723.1 Annex A VAD/CNG · 1 or 2-channel DMA support (Single Cycle “silence” compression which can supply an even and Burst Modes) lower average bit rate. -
TR 101 329-7 V1.1.1 (2000-11) Technical Report
ETSI TR 101 329-7 V1.1.1 (2000-11) Technical Report TIPHON; Design Guide; Part 7: Design Guide for Elements of a TIPHON connection from an end-to-end speech transmission performance point of view 2 ETSI TR 101 329-7 V1.1.1 (2000-11) Reference DTR/TIPHON-05011 Keywords internet, IP, network, performance, protocol, quality, speech, voice ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.:+33492944200 Fax:+33493654716 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://www.etsi.org/tb/status/ If you find errors in the present document, send your comment to: [email protected] Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. -
Multiple Description Coding Using Time Domain Division for MP3 Coded Sound Signal
Journal of Information Hiding and Multimedia Signal Processing ©2010 ISSN 2073-4212 Ubiquitous International Volume 1, Number 4, October 2010 Multiple Description Coding Using Time Domain Division for MP3 coded Sound Signal Ho-seok Wey1;2, Akinori Ito3, Takuma Okamoto1;3, and Yoiti Suzuki1;3 1Research Institute of Electrical Communication,Tohoku University 2-1-1, Katahira, Aoba-ku, Sendai, Miyagi 980-8577, JAPAN 2Graduate School of Information Sciences, Tohoku University, JAPAN Tel.: +81-22-217-5461, Fax.: +81-22-217-5535, E-mail: fhswey, okamoto, yoh @ais.riec.tohoku.ac.jp 3Graduate School of Engineering,f Tohoku University, g 6-6-05 Aramaki aza Aoba, Aoba-ku, Sendai, Miyagi 980-8579, JAPAN Tel.,Fax.: +81-22-795-7084, E-mail: [email protected] Received April 2010; revised May 2010 Abstract. In audio communications over a lossy packet network, packet loss conceal- ment techniques are needed to mitigate a user's frustration when perceiving the deterio- ration of the quality of the decoded signal. Multiple description coding (MDC) is a useful solution to this problem. In this paper, we describe an MDC method for concealing packet losses for wideband sound signal streaming based on the sample splitting method in the time domain and encoding by an MPEG-1 audio layer III (MP3) encoder. To enhance the quality of the restored signal, we applied a Wiener filter to the higher frequency part of the restored signal. Experiments were conducted to compare the proposed method with several conventional methods, conrming that the proposed method showed higher quality results than the conventional methods for a range of bit rates from 128 to 192 kbps when there were heavy packet losses. -
A Real-Time Audio Compression Technique Based on Fast Wavelet Filtering and Encoding
Proceedings of the Federated Conference on Computer Science DOI: 10.15439/2016F296 and Information Systems pp. 497–502 ACSIS, Vol. 8. ISSN 2300-5963 A Real-Time Audio Compression Technique Based on Fast Wavelet Filtering and Encoding Nella Romano∗, Antony Scivoletto∗, Dawid Połap† ∗Department of Electrical and Informatics Engineering, University of Catania, Viale A. Doria 6, 95125 Catania, Italy Email: [email protected], [email protected] †Institute of Mathematics, Silesian University of Technology, Kaszubska 23, 44-100 Gliwice, Poland Email: [email protected] Abstract—With the development of telecommunication tech- transmitted using less data than would be required for the nology over the last decades, the request for digital information original signal [2]. compression has increased dramatically. In many applications, Compression techniques can be classified into one of two such as high quality audio transmission and storage, the target is to achieve audio and speech signal codings at the lowest main categories: lossless and lossy. Lossless compression possible data rates, in order to offer cheaper costs in terms works by removing the redundant information present in an of transmission and storage. Recently, compression techniques audio signal, but preserving its quality and the complete in- using wavelet transform have received great attention because tegrity of the data. However, it offers small compression ratios, of their promising compression ratio, signal to noise ratio, hence it can be used if we have no stringent requirements; and flexibility in representing speech signals. In this paper we examine a new technique for analysing and compressing furthermore, it does not guarantee a constant output data rate, speech signals using biorthogonal wavelet filters. -
EEG CB1512 Caption Legalizer™& Relocating Bridge
EEG CB1512 Caption Legalizer™& Relocating Bridge Product Manual EEG Enterprises, Inc. 586 Main Street Farmingdale, New York 11735 TEL: (516) 293-7472 FAX: (516) 293-7417 Copyright © EEG Enterprises, Inc. 2011 All rights reserved. CB1512 HD Caption Legalizer™/ Relocating Bridge Frame Card Contents 1 Introduction 2 1.1 Product Description . 2 2 Installation 3 2.1 Back Panel . 3 3 Caption Legalizer™Operation 4 3.1 DashBoard Menus . 4 3.1.1 GPI Configuration . 5 3.1.2 RS–232 Configuration . 7 3.1.3 Second Language Service . 8 3.2 Using Smart Encoder Commands . 9 3.3 Caption Processing Control . 9 4 Additional Features 11 4.1 Non-Volatile Memory . 11 4.2 Serial Port Configuration . 12 4.3 Encoder Status Commands . 13 A Grand Alliance Interface Protocol 15 B Video/Connector Specifications 16 Copyright 2011, EEG Enterprises, Inc. All rights reserved. The contents of this manual may not be transmitted or reproduced in any form without the written permission of EEG. The revision date for this manual is July 7, 2011. Copyright © EEG Enterprises, Inc. 2011 1 CB1512 HD Caption Legalizer™/ Relocating Bridge Frame Card 1 Introduction 1.1 Product Description The CB1512 HD Caption Legalizer™and Relocating Bridge provides a powerful solution for eliminating HD captioning problems in a single modular frame card operating on the openGear platform. The frame card utilizes the user friendly DashBoard software, which is available for Windows, Mac and Linux operating systems and streamlines setup of the CB1512. The CB1512 fixes common upconversion errors and maximizes interoperability by ensuring that all data complies completely with DTV captioning standards. -
A Cross-Layer Design for Scalable Mobile Video
A Cross-Layer Design for Scalable Mobile Video The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation Jakubczak, Szymon, and Dina Katabi. “A Cross-layer Design for Scalable Mobile Video.” ACM Press, 2011. 289. As Published http://dx.doi.org/10.1145/2030613.2030646 Publisher Association for Computing Machinery (ACM) Version Author's final manuscript Citable link http://hdl.handle.net/1721.1/72994 Terms of Use Creative Commons Attribution-Noncommercial-Share Alike 3.0 Detailed Terms http://creativecommons.org/licenses/by-nc-sa/3.0/ A Cross-Layer Design for Scalable Mobile Video Szymon Jakubczak Dina Katabi CSAIL MIT CSAIL MIT 32 Vassar St. 32 Vassar St. Cambridge, Mass. 02139 Cambridge, Mass. 02139 [email protected] [email protected] ABSTRACT Cisco visual index, mobile video traffic will grow 66 fold over Today’s mobile video suffers from two limitations: 1) it can- a period of five years [1]. Such predictions lead to a natu- not reduce bandwidth consumption by leveraging wireless ral question: can existing wireless technologies, e.g., WiFi, broadcast to multicast popular content to interested re- WiMax, or LTE, support this impending demand and pro- ceivers, and 2) it lacks robustness to wireless interference vide scalable and robust mobile video? and errors. This paper presents SoftCast, a cross-layer de- (a) Scalability. As demands for mobile video increase sign for mobile video that addresses both limitations. To congestion will also increase. The problem becomes particu- do so, SoftCast changes the network stack to act like a lin- larly severe when many users try to watch a popular realtime ear transform. -
Operations Manual Tandberg EN8090 MPEG4 HD Encoder
ST.RE.E10233.1 Issue 1 REFERENCE GUIDE EN8000 MPEG-4 Part 10 (H.264/AVC) Encoders Software Version 1.0 (and later) EN8030 Standard Definition Encoder EN8090 High Definition Encoder Preliminary Pages ENGLISH (UK) ITALIANO READ THIS FIRST! LEGGERE QUESTO AVVISO PER PRIMO! If you do not understand the contents of this manual Se non si capisce il contenuto del presente manuale DO NOT OPERATE THIS EQUIPMENT. NON UTILIZZARE L’APPARECCHIATURA. Also, translation into any EC official language of this manual can be È anche disponibile la versione italiana di questo manuale, ma il costo è made available, at your cost. a carico dell’utente. SVENSKA NEDERLANDS LÄS DETTA FÖRST! LEES DIT EERST! Om Ni inte förstår informationen i denna handbok Als u de inhoud van deze handleiding niet begrijpt ARBETA DÅ INTE MED DENNA UTRUSTNING. STEL DEZE APPARATUUR DAN NIET IN WERKING. En översättning till detta språk av denna handbok kan också anskaffas, U kunt tevens, op eigen kosten, een vertaling van deze handleiding på Er bekostnad. krijgen. PORTUGUÊS SUOMI LEIA O TEXTO ABAIXO ANTES DE MAIS NADA! LUE ENNEN KÄYTTÖÄ! Se não compreende o texto deste manual Jos et ymmärrä käsikirjan sisältöä NÃO UTILIZE O EQUIPAMENTO. ÄLÄ KÄYTÄ LAITETTA. O utilizador poderá também obter uma tradução do manual para o Käsikirja voidaan myös suomentaa asiakkaan kustannuksella. português à própria custa. FRANÇAIS DANSK AVANT TOUT, LISEZ CE QUI SUIT! LÆS DETTE FØRST! Si vous ne comprenez pas les instructions contenues dans ce manuel Udstyret må ikke betjenes NE FAITES PAS FONCTIONNER CET APPAREIL. MEDMINDRE DE TIL FULDE FORSTÅR INDHOLDET AF DENNE HÅNDBOG. -
A Guide to MPEG Fundamentals and Protocol Analysis and Protocol to MPEG Fundamentals a Guide
MPEG Tutorial A Guide to MPEG Fundamentals and Protocol Analysis (Including DVB and ATSC) A Guide to MPEG Fundamentals and Protocol Analysis (Including DVB and ATSC) A Guide to MPEG Fundamentals and Protocol Analysis ii www.tektronix.com/video_audio/ A Guide to MPEG Fundamentals and Protocol Analysis A Guide to MPEG Fundamentals and Protocol Analysis Contents Section 1 – Introduction to MPEG · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 1.1 Convergence · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 1.2 Why Compression is Needed · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 1.3 Applications of Compression · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 1.4 Introduction to Video Compression · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 2 1.5 Introduction to Audio Compression · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 4 1.6 MPEG Signals · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 4 1.7 Need for Monitoring and Analysis · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 5 1.8 Pitfalls of Compression · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 6 Section 2 – Compression in Video · · · · · · · · · · · · · · · · · · · · · · · · · · · · 7 2.1 Spatial or Temporal Coding? · · · · · · · · · · · · · · · · · · -
AMR Wideband Speech Codec; Feasibility Study Report (3GPP TR 26.901 Version 4.0.1 Release 4)
ETSI TR 126 901 V4.0.1 (2001-04) Technical Report Universal Mobile Telecommunications System (UMTS); AMR wideband speech codec; Feasibility study report (3GPP TR 26.901 version 4.0.1 Release 4) 3GPP TR 26.901 version 4.0.1 Release 4 1 ETSI TR 126 901 V4.0.1 (2001-04) Reference DTR/TSGS-0426901Uv4 Keywords UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.:+33492944200 Fax:+33493654716 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://www.etsi.org/tb/status/ If you find errors in the present document, send your comment to: [email protected] Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. © European Telecommunications Standards Institute 2001. -
Installation and Operation Guide
Installation and Operation Guide Version 3.2 Published: September 30, 2015 ® Table of Contents Notices . 7 Trademarks . 7 Copyright . 7 Contacting Support . 7 Chapter 1: Introduction . 8 Overview. 8 Features . 9 Hardware . 9 Software. 10 Options. 10 System Requirements . 11 Apple ProRes 422 Advantages . 11 In This Manual. 12 Chapter 2: Ki Pro at a Glance . .13 Overview. 13 Operator Side . 14 Controls and Displays . 14 Buttons. 15 Displays and Indicators . 17 Other Front Panel Features. 18 Connector Side. 18 Connections . 19 LTC Timecode Input And Output . 19 SDI Input and Outputs . 20 Component YPbPr . 20 CVBS Composite NTSC/PAL Output. 20 HDMI. 20 Analog 2 Channel Balanced Audio Input and Output. 21 Analog 2 Channel Unbalanced Audio Input and Output. 21 9-pin Connector . 21 Host (FireWire 800) . 21 CTRL/TC (FireWire 400). 21 Ethernet. 21 LANC Loop . 22 Lens Tap. 22 LED Indicator for IEEE 802.11 Radio . 22 Power Connector (back of unit) . 22 Storage . 22 ExpressCard/34 Memory Cards . 22 Removable Storage Modules (HDD or SSD) . 23 Formatting Media. 23 Using Ki Pro Media in Final Cut Pro. 23 Chapter 3: Ki Pro Installation. .25 Installation Overview . 25 What’s In The Box? . 26 Stand-Alone Usage . 27 Camera Mounting with Exo-skeleton. 28 Ki Pro v3.2 2 www.aja.com Exo-skeleton Setup and Adjustment . 28 Accessory Rod Kit Setup and Adjustment . 30 Applying Power . 32 Using AC Power. 33 Using DC Power. 33 Remote Network Control . 34 Network Connections . 34 TCP/IP Information You’ll Need . 35 Networking via DHCP . 35 Networking Ki Pro using a Static IP Address . -
MPEG Compression Is Lossy in That What Is Decoded Is Not Identical to the Interlinked Tables and Coded Identifiers to Separate the Programs and the Original
MPEG Tutorial A Guide to MPEG Fundamentals and Protocol Analysis (Including DVB and ATSC) A Guide to MPEG Fundamentals and Protocol Analysis Primer Section 1 – Introduction to MPEG ..............................................................................1 1.1 Convergence ............................................................................................................................................1 1.2 Why Compression Is Needed ....................................................................................................................1 1.3 Principles of Compression..........................................................................................................................1 1.4 Compression in Television Applications ....................................................................................................2 1.5 Introduction to Digital Video Compression ................................................................................................3 1.6 Introduction to Audio Compression ..........................................................................................................5 1.7 MPEG Streams..........................................................................................................................................6 1.8 Need for Monitoring and Analysis ..............................................................................................................7 1.9 Pitfalls of Compression ..............................................................................................................................7