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31st Meeting: Geneva, CH, July 2023 2023-07-04 19:12
AHG9: On NNPF picture rate upsampling constraints
Authors: Jizheng Xu ByteDance Ye-Kui Wang ByteDance
Abstract
This contribution proposes to make the following changes to the NNPF SEI messages design:
Meeting Notes
JVET-AE0135 AHG9: On NNPF picture rate upsampling constraints [J. Xu, Y.-K. Wang (Bytedance)]
ARCHIVE :
._JVET-AE0135.docx JVET-AE0135.docx
Decisions
JVET-AE0135 AHG9: On NNPF picture rate upsampling constraints [J. Xu, Y.-K. Wang (Bytedance)]
Citation
32nd Meeting: Hannover, DE, October 2023 2023-10-13 09:15
JVET AHG report: Test model software development (AHG3)
Authors: F. Bossen Xinwei Li Karsten Sühring Edouard François Yong He Karl Sharman Vadim Seregin Alexis Tourapis Jens-Rainer Ohm
Abstract
This report summarizes the activities of the AhG3 on Test model software development that has taken place between the 31st and 32nd JVET meetings.
Meeting Notes
JVET-AF0003 JVET AHG report: Test model software development (AHG3) [F. Bossen, X. Li, K. Sühring (co-chairs), E. François, Y. He, K. Sharman, V. Seregin, A. Tourapis (vice chairs)]

The software model versions prior to the start of the meeting were:

Software for MFC and MFCD is only available as published by ITU-T and ISO/IEC. It is planned to create repositories with the latest versions available in ITU-T H.264.2 (02/2016). All development history is lost.

Software development

Development was continued on the GitLab server, which allows participants to register accounts and use a distributed development workflow based on git.

The server is located at:

https://vcgit.hhi.fraunhofer.de

The registration and development workflow are documented at:

https://vcgit.hhi.fraunhofer.de/jvet/VVCSoftware_VTM/wikis/VVC-Software-Development-Workflow

Although the development process is described in the context of the VTM software, it can be applied to all other software projects hosted on the GitLab server as well.

VTM related activities

The VTM software can be found at

https://vcgit.hhi.fraunhofer.de/jvet/VVCSoftware_VTM/

The software development continued on the GitLab server. VTM versions 20.1 and 20.2 were tagged on May 8, and VTM version 21.0 was tagged on Jul. 9. VTM 21.1 is expected during the 31st JVET meeting.

VTM 21.1 was tagged on July 21, 2023. Changes include:

  • JVET-AD0057...
ARCHIVE :
._.DS_Store ._HM-18.0_VTM-22.0_HDR_idc.xlsm ._JVET-AF0003-v1.docx ._VTM-21.0_vs_VTM-22.0_HDR_idc.xlsm ._VTM-21.2_vs_VTM-22.0.xlsm ._VTM-22.0_vs_VTM-21.0_RExt_HighBitDepth.xlsm .DS_Store HM-18.0_VTM-22.0_HDR_idc.xlsm JVET-AF0003-v1.docx VTM-21.0_vs_VTM-22.0_HDR_idc.xlsm VTM-21.2_vs_VTM-22.0.xlsm VTM-22.0_vs_VTM-21.0_RExt_HighBitDepth.xlsm
Decisions
The software coordinators expressed thanks to experts who diligently delivered implementations of HLS related software in a timely fashion.
Citation
32nd Meeting: Hannover, DE, October 2023 2023-10-12 15:34
JVET AHG report: Draft text and test model algorithm description editing (AHG2)
Authors: B. Bross C. Rosewarne F. Bossen A. Browne S. Kim Shan Liu Jens-Rainer Ohm Gary J. Sullivan Alexis Tourapis Ye-Kui Wang Y. Ye
Abstract
This document reports on the work of the JVET ad hoc group on Draft text and test model algorithm description editing (AHG2) between the 31st meeting in Geneva, CH, (11 – 19 July 2023) and the 32nd meeting in Hannover, DE, (13 – 20 October 2023).
Meeting Notes
JVET-AF0002 JVET AHG report: Draft text and test model algorithm description editing (AHG2) [B. Bross, C. Rosewarne (co-chairs), F. Bossen, A. Browne, S. Kim, S. Liu, J.-R. Ohm, G. J. Sullivan, A. Tourapis, Y.-K. Wang, Y. Ye (vice chairs)]

Output documents produced

JVET-AE1004 - Errata report items for VVC, VSEI, HEVC, AVC, and Video CICP

This document contains a list of reported errata items for VVC, VSEI, HEVC, AVC, Video CICP, and the TR on usage of video signal type code points, for tracking purposes. Some of the items have been confirmed by the JVET and have been agreed to require fixing. This document also provides publication status backgrounds of these standards.

Incorporated items at the JVET-AE meeting:

  • Updated the general descriptions for VVC, VSEI, HEVC, and AVC.
  • Removed obsolete/resolved errata items.
  • Added 16 items for the ISO text only for HEVC, identified when working on the ITU-T consent text for H.265 version 9 (edition 5).
  • Added 9 items on the semantics of post-filter hint SEI message from JVET-AE0155 for both HEVC and AVC.
  • Added 4 items for AVC, on semantics of the omnidirectional video SEI messages. These items were among the items for HEVC and have been resolved for HEVC.
  • Added an item for AVC on use of the "should" wording for the use of the film grain characteristics SEI messages when present.
  • Removed the section for codepoint usage TR as the TR part has been dropped from the title of the document a while ago.
  • Added an item for HEVC regarding replacing of "Max slice segments per picture MaxSliceSegmentsPerPicture" in Table A.8 with "Max # of slice segments...
ARCHIVE :
JVET-AF0002-v1.docx
Decisions
The AHG recommended to: Approve JVET-AE1004, JVET-AE1006, JVET-AE1016, JVET-AE2005, JVET-AE2006, and JVET-AE2027 documents as JVET outputs, Compare the VVC documents with the VVC software and resolve any discrepancies that may exist, in collaboration with the software AHG, Encourage the use of the issue tracker to report issues with the text of both the VVC specification text and the algorithm and encoder description, Continue to improve the editorial consistency of VVC text specification and Test Model documents, Ensure that, when considering changes to VVC, properly drafted text for addition to the VVC Test Model and/or the VVC specification text is made available in a timely manner, Review bug tickets, and other AHG2 related inputs and act on them if found to be necessary.
Citation
31st Meeting: Geneva, CH, July 2023 2023-09-15 12:55
Technologies under consideration for future extensions of VSEI (draft 1)
Authors: Miska M. Hannuksela Jie Chen Sachin Deshpande Sean McCarthy Jens-Rainer Ohm
Abstract
This document contains the draft text for changes under consideration for future extensions to the versatile supplemental enhancement information messages for coded video bitstreams (VSEI) standard (Rec. ITU-T H.274 | ISO/IEC 23002-7) to modify existing SEI messages or specify additional SEI messages.
Meeting Notes
JVET-AE2032 Technologies under consideration for future extensions of VSEI (draft 1) The following 7 documents were produced as WG 5 documents only: WG 5 N 217 Request for ISO/IEC 14496-10 11th edition WG 5 N 219 Disposition of comments received on ISO/IEC 23002-7:2022 DAM 1 WG 5 N 220 Text of ISO/IEC FDIS 23002-7:202x Versatile supplemental enhancement information messages for coded video bitstreams (3rd edition) WG 5 N 222 Disposition of comments received on ISO/IEC CDTR 23002-9 WG 5 N 225 Request for ISO/IEC 23008-2:202x/Amd.1 WG 5 N 227 Disposition of comments received on ISO/IEC 23090-3:2022 DAM 1 WG 5 N 228 Text of ISO/IEC FDIS 23090-3:202x Versatile video coding (3rd edition) The following 5 draft revised ITU-T Recommendations were forwarded by JVET and Q6/16 for ITU-T Consent: TD169/Plen ITU-T H.265 (V9) "High efficiency video coding" (Rev.) TD171/Plen ITU-T H.266 (V3) "Versatile...
ARCHIVE :
JVET-AE2032-v1.docx
Decisions
As a primary goal, the JVET meeting reviewed the work that was performed in the interim period since the thirtieth JVET meeting in producing the following documents:
The meeting was closed at 1215 CEST on 2023-07-19.
Citation
31st Meeting: Geneva, CH, July 2023 2023-07-13 17:19
BoG report on SEI messages for VSEI v3 and VVC v3
Authors: Gary J. Sullivan Gary Sullivan
Abstract
This document is a break-out-group report on SEI messages for VSEI v3 and VVC v3. The BoG met from 15:15 to 18:30 on Tuesday 11 July 2023 and from 08:30 to 12:30 and 14:30 to 18:30 on Wednesday 12 July 2023 in Salle 3 of the Geneva CICG facility.
Meeting Notes
JVET-AE0272 BoG report on SEI messages for VSEI v3 and VVC v3 [G. J. Sullivan (BoG coordinator)] This document is a break-out-group report on SEI messages for VSEI v3 and VVC v3. The BoG met from 15:15 to 18:30 on Tuesday 11 July 2023 and from 08:30 to 12:30 and 14:30 to 18:30 on Wednesday 12 July 2023 in Salle 3 of the Geneva CICG facility. About 15-20 people participated in person and another 10-15 participated remotely. The BoG reviewed the relevant proposals for NNPF SEI messages based primarily on the summary of NNPF-related SEI messages provided in JVET-AE0187-v3, which formed the original basis of the structure of this report. No specific plans were recommended for topics that were agreed not to be within the scope of VSEI v3 and VVC v3 (except to encourage progress toward future support for VSEI v3 SEI messages for NNPF and filtering phase indication in HEVC and AVC). Actions rec...
ARCHIVE :
JVET-AE0272-v2.docx
Decisions
For the BoG consideration of this topic, see the notes in section 6.2.
All BoG recommendations as per v2 were confirmed by the JVET plenary. For further detail, see section 6.
Citation
31st Meeting: Geneva, CH, July 2023 2023-07-11 14:51
JVET AHG report: SEI message studies (AHG9)
Authors: Sean McCarthy Ye-Kui Wang Takeshi Chujoh Sachin Deshpande Chad Fogg Hendry Philippe de Lagrange Gary J. Sullivan Alexis Tourapis S. Wenger Jens-Rainer Ohm
Abstract
This document summarizes the activity of AHG9 (SEI message studies) between the 30th JVET Meeting (Antalya, TR, 21–28 April 2023) and the 31st JVET Meeting (Geneva, CH, 11–19 July 2023).
Meeting Notes
JVET-AE0009 JVET AHG report: SEI message studies (AHG9) [S. McCarthy, Y.-K. Wang (co-chairs), T. Chujoh, S. Deshpande, C. Fogg, Hendry, P. de Lagrange, G. J. Sullivan, A. Tourapis, S. Wenger (vice-chairs)] Related contributions A total of 42 contributions and 1 bug report were identified relating to the mandates of AHG9. Some contributions also relate to the work of AHG2 and AHG8. The number of contributions relating to each AHG9 mandate is as follows 31 contributions relate to the mandate to study the SEI messages in VSEI, VVC, HEVC, and AVC. 2 of the 31 contributions relate to more than one SEI message. 28 contributions relate to the neural-network post-filter SEI messages, including 1 summary of proposals on NNPF SEI messages. 1 contribution relates to the annotated region SEI message 2 contribution relates to the post filter hint SEI message 1 contribution relates to the phase indica...
ARCHIVE :
JVET-AE0009-v3.docx
Decisions
The AHG recommended to: Review all related contributions; and Continue SEI messages studies. It was agreed that no technical aspects regarding new functionality should be added to the NNPF SEI message for v3; the main focus was on bug fixes. In terms of purpose, no new items should be added to v3, as long as extensibility is possible. A BoG on VSEI V3 aspects and VVC V3 SEI message aspects was established (coordinated by G. Sullivan), to meet from Tuesday afternoon. The BoG was also requested to sort out which proposals in the NNPF category would rather be candidates for a future version.
Citation
31st Meeting: Geneva, CH, July 2023 2023-07-11 08:11
JVET AHG report: Neural network-based video coding (AHG11)
Authors: Elena Alshina Shan Liu Andrew Segall Franck Galpin Jingxin Li Ru-Ling Liao Dmytro Rusanovskyy Tong Shao M. Wien Ping Wu Jens-Rainer Ohm
Abstract
This document summarizes the activities of AHG11: Neural network-based video coding between the 30th meeting (21 – 28 April 2023) held in Antalya, TR and the 31st meeting (11 – 19 July 2023) held in Geneva, CH.
Meeting Notes
JVET-AE0011 JVET AHG report: Neural network-based video coding (AHG11) [E. Alshina, S. Liu, A. Segall (co chairs), F. Galpin, J. Li, R.-L. Liao, D. Rusanovskyy, T. Shao, M. Wien, P. Wu (vice-chairs)] Activities The AHG used the main JVET reflector, jvet@lists.rwth-aachen.de, for email. Forty-one emails were exchanged on the reflector related to the AHG mandates. Common Test Conditions Document The AHG released revised common test conditions as decided at the 30th meeting. The final version was uploaded as document JVET-AD2016 on May 12, 2023. Anchor Encoding Anchors for the NN-based video coding activity made available on the Git repository used for the AHG activity: https://vcgit.hhi.fraunhofer.de/jvet-ahg-nnvc/nnvc-ctc/-/tree/master. EE Coordination The AHG finalized, conducted and discussed the EE on NN based video coding. The final version of the EE description was uploaded to the do...
ARCHIVE :
._JVET-AE0011-v2.docx JVET-AE0011-v2.docx
Decisions
The AHG recommended to: Review all input contributions. Continue investigating neural network-based video coding tools, including coding performance and complexity. Encourage EE1 to continue using a workflow similar to the one in JVET-AE0191 with unified training, clearly documented NNVC technology and transparent training process performed by multiple parties in parallel with regular information sharing.
Citation
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