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Future collaboration between MPEG and VCEG

Yu Liu — Fri, 03 Jul 2009 16:08:55 +0000

As well-known, the JVT (a joint video team between MPEG and VCEG) achieves great success in the standardization of the state-of-art video compression, including H.264/AVC, SVC, and MVC. The academic and industry want to continue the success in the collaboration between MPEG and VCEG. Some proposals from VCEG suggest the H.NGVC (or H.265) standardization should be collaboratively done with MPEG to produce a significantly advanced video coding standard and to avoid producing multiple similar standards that will make market confusing. VCEG agrees that conducting this work jointly with MPEG would be beneficial to avoid duplication of efforts in this area. Therefore, in this MPEG London meeting, a joint meeting between MPEG and VCEG discussed the future collaboration. However, the collaboration method aroused a lot of controversy, focusing on which one of the following practical experiences should be chosen:

Practical experience 1: MPEG-2, a integrate part of video subgroup when under WG 11 auspices;
Practical experience 2: H.264/AVC (JVT), a distinct subgroup of WG11.

However, the joint meeting between MPEG and VCEG did not reach a conclusion on which one to use. The naming of output specification and collaborative team were also discussed, but no conclusion was drawn at this stage.

Current Status of HVC (High-performance Video Coding) in MPEG

Yu Liu — Fri, 03 Jul 2009 13:10:18 +0000

In the last MPEG Maui meeting, MPEG issued a Call for Evidence (CfE) on High-performance Video Coding (HVC). Nine responses to the CfE are received in this meeting (89th MPEG London). Those reponse proposals adopt typical coding tools in KTA, such as adaptive loop filter (ALF), extended macroblock size (EMS), larger transform size (LTS), internal bit depth increasing (IBDI), adaptive quantization matrix selection (AQMS), and other tools, such as modified intra prediction, modified de-block filter, decoder-side motion vector derviation (DMVD).

The objective experimental results show that 20% average bit reduction is achieved compared with H.264/AVC High Profile for all classes of test video sequences (Class A: 19%, Class B:25%, Class C:22%, Class D: 15% bit reductions, respectively). Subjective evalution is also conducted during this meeting. The purpose of subjective evaluation is not ranking of response proposals, but identifying examples that give best evidence and assessing whether the evidence is large enough. The subjective evalution results also show that there is positive evidence to support the availability of suitable technology to justify the start for a new standardization activity.

Therefore, MPEG plans to move forward toward quickly issuing a formal Call for Proposals (CfP) on HVC (as soon as October 2009). The timeline of CfP on HVC:

July 20, 2009: Availability of test materials defined in Draft CfP
August 15, 2009: Availability of preliminary anchors
October 27, 2009: Deadline for Pre-registration (mandatory)
October 31, 2009: Final Call for Proposals (public)
November 15, 2009: Formal registration
December 15, 2009: Coded test material available at the test site
January 1, 2010: Subjective assessment starts
January 11, 2010: Registration of documents describing the proposals with MPEG video chair
January 12, 2010: Submission of document to MPEG Video chair
January 16, 2010: Report of the subjective test results

The upcoming 89th MPEG/31st JVT/38th VCEG meetings

Yu Liu — Mon, 15 Jun 2009 05:25:39 +0000

The 89^th MPEG / 31^st JVT / 38^th ITU-VCEG meetings are hosted by the Centre for Digital Music, School of Electronic Engineering and Computer Science of Queen Mary University of London, UK.

AhGs will meet on 27-28 June 2009.
The 89^th MPEG Meeting will be held on 29 June – 3 July, 2009.
The 31^st JVT Meeting will be held on 29 June – 3 July, 2009.
The 38^th ITU-VCEG Meeting will be held on 1-2 July, 2009. (Note: this VCEG meeting only discusses the future collaboration of VCEG and MPEG. Technical issues will be discussed in Geneva meeting on July 6 – 8.)

I will go to London to attend those meetings, and will report the progress of meetings in good time. Keep an eye on this website!