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AVC Compression Update: FRExt and future

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AVC Compression Update: FRExt and future Matthew Goldman Vice President of Technology Compression Systems – PowerPoint PPT presentation

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Title: AVC Compression Update: FRExt and future


1
AVC Compression Update FRExt and future
  • Matthew Goldman Vice President of
    Technology Compression Systems

2
MPEG-4 AVC / H.264 Version 1 ISO/IEC 14496-10
MPEG-4 Part 10 ITU-T Rec. H.264
  • Primary Technical Objectives
  • Significant improvement in coding efficiency
  • High loss/error robustness
  • Transport independent (network abstraction)
  • Convey over MPEG-2 Transport, RTP, H.32x, MP4/ISO
    file formats, MP4 Systems
  • Low latency capability (but better quality for
    higher latency)
  • Exact match decoding
  • 3 Profiles (? example application)
  • Baseline ? Video conferencing wireless
  • Main ? Broadcast Storage (standard high
    definition)
  • Extended ? Streaming
  • Finalized May/July 2003 (tech frozen 12/02)
  • Products available today

3
MPEG-4 AVC / H.264 Version 2 Fidelity Range
Extensions (FRExt)
  • Additional Technical Objectives
  • Professional applications
  • gt 8b/sample, gt 420 color sampling,
  • Higher-quality high-resolution video
  • Alpha plane support (a degree of object
    functionality)
  • New supplemental information
  • 4 Profiles
  • High (420, 8b) ? Brdcst/Storg SD/HD (MP
    superset)
  • High 10 (420, 10b)
  • High 422 (422, 10b) ? Contribution
  • High 444 (444 12b)
  • Finalized July 2004
  • High Profile will be in products this year
  • 422 when?

Hi444 withdrawn and to be replaced!
4
MPEG-4 AVC / H.264 Extensions Current Activities
  • Scalable Video Encoding
  • Effort launched January 2005
  • Core experiments exploring
  • Context Adaptive Variable Length Coding (CAVLC)
  • Inter-layer motion prediction
  • Inter-layer texture prediction
  • Region of Interests (ROI)
  • Quantization
  • High-level syntax
  • Improved and low-delay Fine Granularity
    Scalability (FGS)
  • Replacement 444 Profile for Hi444
  • Better processing elements for color components
    (Cb/Cr channels)
  • Improved macroblock coding mode

5
Future Activities Rumors?
  • Heard rumors about a new codec to replace MPEG-4
    AVC/H.264? H.265
  • Muddled information taken out of context
  • Standards activities always investigate future
    possibilities
  • There will likely by additional
    enhancements/amendments to AVC
  • Just like what occurred with FRExt (v2) and is
    happening now with SVC, new 444 Profile

6
Thank you!
  • Acknowledgement Gary Sullivan,
    Co-Chair, Joint Video Team ITU-T VCEG
    ISO/IEC MPEG
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