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25th Meeting: by teleconference, October 2021 2022-01-12 16:22
JVET AHG report: Project management (AHG1)
Authors: Jens-Rainer Ohm Gary J. Sullivan
Abstract
This document reports on the work of the JVET ad hoc group on Project Management, including an overall status report on JVET’s standardization projects and the progress made during the interim period since the preceding meeting.
Meeting Notes
JVET-X0001 JVET AHG report: Project management (AHG1) [J.-R. Ohm, G. J. Sullivan]

At the 23rd meeting of the ITU-T/ISO/IEC Joint Video Experts Team (JVET), an ad hoc group on Project Management was established with the following mandates:

  • Coordinate overall JVET interim efforts.
  • Supervise AHG studies.
  • Report on project status to JVET reflector.
  • Provide a report to next meeting on project coordination status.

The reflector used for discussions by the JVET and all of its AHGs is the JVET reflector:
jvet@lists.rwth-aachen.de. For subscription to this list, see
https://lists.rwth-aachen.de/postorius/lists/jvet.lists.rwth-aachen.de/.

The number of subscribers (by the beginning of the current meeting) was 1340. Furthermore, the JCT-VC email list (which was still kept open) had 1294 subscribers.

Goals and activity

The work of the JVET overall had proceeded well in the interim period with approximately same number of input documents (as compared to the previous meeting) submitted to the current meeting. Intense discussion had been carried out on the group email reflector, and all output documents from the preceding meeting had been produced.

Output documents from the preceding meeting had been made initially available at the JVET web site (https://jvet-experts.org/) or the ITU-based JVET site (http://wftp3.itu.int/av-arch/jvet-site/2021_07_W_Virtual/). It is noted that the previous document site http://phenix.int-evry.fr/jvet/ is still accessible, but was converted to read-only.

The list of documents produced included the following, particularly:

  • The meeting report (JVET-W1000) [Posted 2021-08-14]
  • Errata report items for VVC, HEVC, AVC, Video CICP, and CP usage TR (JVET-W1004) [Posted 2021-09-28]
  • Algorithm description for Versatile Video Coding and Test Model 14 (VTM 14) (JVET-W2002) [Posted 2021-09-25]
  • VVC operation range extensions (Draft 4 (JVET-W2005) [Posted 2021-08-24, last update 2021-09-29]
  • Additional SEI messages for VSEI (Draft 4) (JVET-W2006) [Posted 2021-05-07]
  • Common Test Conditions and evaluation procedures for neural network-based video coding technology (JVET-W2016) [Posted 2021-05-26, last update 2021-08-16]
  • Common Test Conditions and evaluation procedures for enhanced compression tool testing (JVET-W2017) [Posted 2021-07-31]
  • White paper on Versatile Video Coding (JVET-W2019) [Posted 2021-10-04]
  • VVC verification test report for high dynamic range video content (JVET-W2020) [Posted 2021-08-27]
  • CE on Film Grain Synthesis (JVET-W2022) [Posted 2021-07-16, last update 2021-07-30]
  • EE on Neural Network-based Video Coding (EE1) (JVET-W2023) [Posted 2021-07-16, last update 2021-08-02]
  • EE on Enhanced Compression beyond VVC capability (EE2) (JVET-W2024) [Posted 2021-07-15, last update 2021-09-23]
  • Algorithm description of Enhanced Compression Model 2 (ECM 2) (JVET-W2025) [Posted 2021-09-02]
  • Conformance testing for VVC operation range extensions (draft 1) (JVET-W2026) [Posted 2021-07-16, last update 2021-09-01]

Furthermore, the following documents were submitted to the ISO/IEC JTC1/SC29 parent body on behalf of its WG 5:

  • Disposition of comments on ISO/IEC 14496-10:2020 CDAM 1 Additional SEI messages (WG 5 N 65)
  • Text of ISO/IEC DIS 14496-10:202X Advanced Video Coding (10th edition) (WG 5 N 66)
  • Disposition of comments on ISO/IEC 23002-7:2021 CDAM 1 Additional SEI messages (WG 5 N 67)
  • Text of ISO/IEC DIS 23002-7:202X Versatile supplemental enhancement information messages for coded video bitstreams (2nd edition) (WG 5 N 68)
  • Disposition of comments on ISO/IEC 23090-3:2021 CDAM 1 Operation range extensions (WG 5 N 69)
  • Text of ISO/IEC DIS 23090-3:202X Versatile Video Coding (2nd edition) (WG 5 N 70)

The twelve ad hoc groups had made progress, and reports from those activities had been submitted. Furthermore, one core experiment (CE) on film grain synthesis, and two exploration experiments (EE) on neural network-based video coding and on enhanced compression beyond VVC capability, were conducted.

Due to issues associated with the COVID-19 pandemic, a conversion of the meeting to be conducted only online was again necessitated.

Software integration was finalized approximately according to the plan. Significant activities were also conducted on preparation of verification tests, and on development of VVC conformance testing.

Various problem reports relating to asserted bugs in the software, draft specification text, and reference encoder description had been submitted to an informal "bug tracking" system. That system is not intended as a replacement of our ordinary contribution submission process. However, the bug tracking system was considered to have been helpful to the software coordinators and text editors. The bug tracker reports had been automatically forwarded to the group email reflector, where the issues were discussed – and this is reported to have been helpful.

Roughly 110 input contributions (not counting the AHG, CE and EE summary reports and crosschecks) had been registered for consideration at the current meeting.

It is further noted that, starting from the twentieth JVET meeting, work items which had originally been conducted by the Joint Collaborative Team on Video Coding (JCT-VC) were continued to be conducted in JVET as a single joint team, as negotiated by the parent bodies. This particularly consists of work on

  • High Efficiency Video Coding (HEVC) and its extensions, the development of associated conformance test sets, reference software, verification testing, and non-normative guidance information,
  • Specification of Coding-independent Code Points (Video) (CICP), and associated technical report(s),
  • Maintenance and minor enhancement work on the Advanced Video Coding (AVC) standard, associated conformance test sets and reference software.

To retain a consistent numbering scheme, the number range of output documents starting from 1001 was reserved for the previous JCT-VC topic items listed above, whereas the number range starting from 2001 was retained for VVC, VSEI and exploration activities.

A preliminary basis for the document subject allocation and meeting notes for the 24th meeting had been made publicly available on the ITU-hosted ftp site http://wftp3.itu.int/av-arch/jvet-site/2021_10_X_Virtual/.

The AHG recommended adding a mandate on supervising and organizing the processing and delivery of output documents.

References:
JVET-X1000 JVET-X1004 JVET-X1005 JVET-X2002 JVET-X2005 JVET-X2006 JVET-X2008 JVET-X2016 JVET-X2017 JVET-X2023 JVET-X2024 JVET-X2025 JVET-X2026 JVET-Y0001
ARCHIVE v2 :
JVET-Y0001-v2.docx
Decisions
The AHG recommended adding a mandate on supervising and organizing the processing and delivery of output documents.
Citation