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New coding techniques, standardisation, and quality metrics

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Touradj Ebrahimi
Touradj Ebrahimi

These are the set of slides I presented during a keynote presentation at an event organized by FUB in Italy on November 2008.

TechnologieFormation
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New coding techniques, standardisation, and quality metrics Touradj Ebrahimi [email_address]
Background
Multimedia ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Digital revolution ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Moore’s law ,[object Object]
Multimedia anywhere, anytime, accessible to everybody
In many forms, applications and services
Multimedia challenges ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Digital Media Roadmap
Phase 1 (yesterday): Era of all digital ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Phase 2 (today): Era of multimedia ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Examples ,[object Object],[object Object]
Cyber glasses
Phase 2 (today): Era of multimedia ,[object Object],[object Object],[object Object],[object Object]
Phase 3 (tomorrow): Era of interface ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Phase 3 (tomorrow): Era of interface ,[object Object]
Phase 4 (day after tomorrow): Era of extended media and interface ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Digital Media Roadmap 1985 1990 1995 2000 2005 2010 2015 2020 Phase 1 Phase 2 Phase 3 Phase 4 All Digital Multimedia Interface Extended media and interface
Phase 5 : Era of symbiosis ,[object Object],[object Object],[object Object],[object Object]
Phase 5 : Era of symbiosis
Phase 5 : Era of symbiosis ,[object Object]
Phase 5 : Era of symbiosis ,[object Object],[object Object]
Media Standards
Standards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Why compression? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Content representation ,[object Object],[object Object],[object Object],[object Object]
Application requirements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MPEG-x approach ,[object Object],[object Object],[object Object]
H.26x approach ,[object Object],[object Object],[object Object]
Media Coding Standards Evolution …
Frame-based Video/Image Coding Standards up to AVC ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MPEG-1: The First Entertainment Bits ,[object Object],[object Object],[object Object],[object Object],1991 ! Source Delivery D e m u l t i p l e x e r Video Audio
MPEG-2: Digital TV ,[object Object],[object Object],[object Object],1993 !
MPEG-4: Object-Based Coding Standard ,[object Object],[object Object],[object Object],[object Object],[object Object],1998 !
Video Coding in MPEG-4 ,[object Object],[object Object],[object Object],[object Object]
H.264/AVC: Main Functionalities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Basic Coding Architecture 2003 !
H.264/AVC Profiles …
H.264/AVC: a Success Story … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Is there a Moore’s law of compression ? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Scalable Video Coding: Objectives ,[object Object],[object Object],[object Object]
SVC Applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SVC Coding Architecture ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],2007 ! Hierarchical MCP & Intra prediction Base layer coding texture motion Hierarchical MCP & Intra prediction Base layer coding texture motion Progressive SNR refinement texture coding Spatial decimation Spatial decimation H.264/AVC compatible base layer bit-stream Hierarchical MCP & Intra prediction Base layer coding Multiplex texture motion Scalable bit-stream H.264/AVC compatible encoder Progressive SNR refinement texture coding Progressive SNR refinement texture coding
Spatio-Temporal-Quality Cube
SVC Scalability Types ,[object Object],[object Object],[object Object]
SVC Performance: Spatial Scalability ,[object Object],[object Object]
3D Worlds ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Multiview Video Coding (MVC) ,[object Object],[object Object]
MVC Prediction Structures ,[object Object],MPEG-2 Video Multiview profile MPEG-4 MVC
MVC: Technical Solution ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],2008 !
Some MVC Performance Results Anchor is H.264/AVC without hierarchical B pictures; however, Simulcast already includes hierarchical B pictures.
 
State-of-the-Art: H.264/AVC Encoding Architecture
The Current Video Coding Paradigm ,[object Object],[object Object],[object Object],[object Object]
Emerging Challenges ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],light Transcoding Heavy encoder Light decoder
Distributed Coding of Dependent Sources: The Slepian-Wolf Theorem ,[object Object],Independent enc. & dec: no errors Distributed enc. and joint decoding: vanishing error probability for long sequences
Lossy Coding with Side Information: The Wyner-Ziv Theorem ,[object Object],[object Object],Source Lossy Encoder Lossy Joint Decoder X X Y Y ^
Feedback Channel Based DVC Architecture ,[object Object],[object Object],[object Object],[object Object],KF KF WZ
DVC RD Performance Coastguard QCIF@15Hz, GOP2
VISNET II DVC RD Performance Foreman QCIF@15Hz, GOP2
VISNET II DVC RD Performance Soccer QCIF@15Hz, GOP2
VISNET II DVC RD Performance Hall&Monitor QCIF@15Hz, GOP2
Looking over the Horizon … ,[object Object],[object Object],[object Object],[object Object],[object Object]
‘ rugby’ 4.7 Mbit/s AVC
‘ rugby’ 4.7 Mbit/s AVC + texture synthesis 20?? !
Quality of Experience ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Quality of Experience ,[object Object],[object Object],[object Object],[object Object],[object Object]
Challenges in visual quality assessment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],Acknowledgement to Fernando Pereira (IST) and MPEG committee members for some slides.

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