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Explorations – Scalable resolution enhancement of frame-compatible stereo video
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- JCT report Source: Jens Ohm and Gary Sullivan, Chairs Summary
7Explorations – Scalable resolution enhancement of frame-compatible stereo videoIn continuation of the work begun at the previous meeting for evaluating the potential need for scalable resolution enhancement of frame-compatible stereo video, a number of activities took place on this subject in Guangzhou at this meeting. This work should primarily be considered to fall under the Requirements subgroup at this stage, and although a summary of the work on this topic is also provided here, the Requirements report should be reviewed for further information on this activity. An ad hoc group had met on the day preceding the WG 11 meeting. The AHG had recommended for WG 11 to
It was agreed that AVC base layer compatibility is required – at least it must support that. It is not yet known whether frame-compatible MPEG-2 will be deployed in large numbers. It was remarked regarding m18478 that the wording "The new codec shall not introduce significant degradation" may not be fully appropriate, and it was suggested to reword this to something more describing having a "visually acceptable quality base layer quality". A break-out activity was coordinated by W. Husak & A. Tourapis during the meeting to:
In M18541, Panasonic reported on Subjective Picture Quality Evaluation of MVC Stereo High Profile for Full-Resolution Stereoscopic HD Video Applications. Panasonic tested the use of the Stereo High profile with a 12 Mbps first view and a varying bit rate for the 2nd view, relative to the base layer with a 1920x1080 shutter-glass frame-sequential 103" display. Confidence intervals overlapped for 25-50% supplemental bit rate, and 50% supplemental bit rate scored slightly higher than 100% added bit rate simulcast. For animation, a lower second-view relative bit rate seemed acceptable. For equal total bit rate, it seemed better to allocate 1/3 of those bits (50% relative to the main view) than to allocate substantially fewer (15% relative to the main view). Interlaced video appeared to need a higher bit rate than progressive scan video. These subjective results seemed better than the objective results reported in JVT-AE022, in terms of indicating the visual coding efficiency of the MVC Stereo High profile design. The results of the work and plans for future activity were agreed to be reflected in two output documents, one describing requirements for MPEG Frame-Compatible Enhancement (MFC), and one describing plans for the test conditions and evaluation process for MFC. And editing period was authorized for preparation of the latter document. An Ad Hoc group was established to further the work until the Daegu meeting. Relevant input documents reviewed:
Document(s) approved:
Source: Jens Ohm and Gary Sullivan, Chairs Summary The Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T WP3/16 and ISO/IEC JTC 1/SC 29/WG 11 held its third meeting during 7-15 October, 2010 at the Guangzhou Baiyun International Convention Center – Oriental International Convention Hotel, in Guangzhou, China. The JCT-VC meeting was held under the chairmanship of Dr. Gary Sullivan (Microsoft/USA) and Dr. Jens-Rainer Ohm (RWTH Aachen/Germany). The JCT-VC meeting sessions began at approximately 9:00 a.m. on Thursday 7 October. Meeting sessions were held on all days (including weekend days) until the meeting was closed at approximately 1:30 p.m. on Friday 15 October. Approximately 244 people attended the JCT-VC meeting, and approximately 300 input documents were discussed. The meeting took place in a co-located fashion with a meeting of ISO/IEC JTC 1/SC 29/WG 11 (MPEG) – one of the two parent bodies of the JCT-VC. The subject matter of the JCT-VC meeting activities consisted of work on the new next-generation video coding standardization project now referred to as High Efficiency Video Coding (HEVC). The primary goals of the meeting were to review the work that was performed in the interim period since the second JCT-VC meeting in implementing the Test Model under Consideration (TMuC), review results from Tool Experiments (TE), review technical input documents, establish a first Working Draft and HEVC Test Model (HM), and plan a set of Core Experiments (CE) for further investigation of proposed technology. The JCT-VC produced five important output documents from the meeting: A document describing the process of test model development for HEVC, the HEVC Test Model 1 (HM1), the HEVC specification Working Draft 1 (WD1), a document describing software guidelines and a document providing an overview about the HM1 and WD1 adoptions. Furthermore, 13 documents describing the planning of CEs were drafted. For the organization and planning of its future work, the JCT-VC established thirteen "Ad Hoc Groups" (AHGs) to progress the work on particular subject areas. The next JCT-VC meetings will be held during 20-28 January 2011 in Daegu, Korea under the auspices of JTC 1/SC 29/WG 11, and during 15-23 March 2011 in Geneva, Switzerland under the auspices of ITU-T Q6/16. A new document distribution site http://phenix.it-sudparis.eu/jct/ became operational shortly before the Guangzhou meeting and was exclusively used for distribution of all documents. The new site allows a more automated process of document registration and download. Further improvements are expected in simplified bulk download and particularly for selective download of updated documents. The reflector to be used for discussions by the JCT-VC and all of its AHGs is the JCT-VC reflector: jct-vc@lists.rwth-aachen.de. For subscription to this list, see http://mailman.rwth-aachen.de/mailman/listinfo/jct-vc. Yüklə 5,72 Mb. Dostları ilə paylaş:
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