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Ad hoc groups

Ad hoc groups of MPEG 148

NameAhG on Application Formats
GroupWG 3 - MPEG Systems
Mandates
CMAF (Common Media Application Format)
1.	Study the CD, and solicit further input
2.	Solicit feedback on the open issues on GitHub and GitLab.

MIAF (Multi-Image Application Format)
3.	Study the CD, and solicit further input
4.	Solicit feedback on the open issues on GitLab

MeMAF (Messaging Application Format)
5.	Study the requirements, working draft and solicit further input, in collaboration with 3GPP SA4.
6.	Solicit feedback on the open issues on GitLab and GitHub
Chair(s)
Krasimir Kolarov; Cyril Concolato; Thomas Stockhammer
Duration
until 149th meeting
Reflector(s)
CMAF - mpeg-cmaf@lists.aau.at
MIAF, VIAF, MeMAF - mpeg-maf-dev@lists.aau.at
Subscribe
CMAF - https://lists.aau.at/mailman/listinfo/mpeg-cmaf
MIAF, VIMAF, MeMAF - https://lists.aau.at/mailman/listinfo/mpeg-maf-dev
Meeting
AHG Meeting:
o	F2F Jan. 19, 2025 10:00 - 12:00 Local time
Room Size
30

NameAhG on Feature Coding for Machines
GroupWG 4 - MPEG Video Coding
Mandates
1. Develop and release updated FCTM software, anchors, and CTTC.
2. Conduct Core Experiments.
3. Conduct FCTM studies (FE1-3 on training, CTTC, GPU stability, respectively.)
4. Investigate remaining causes of discrepancy in FCTM simulations and propose solutions.
5. Continue to refine Common Test and Training Conditions.
6. Solicit additional training datasets.
7. Study methods to support network and split point-agnostic architecture.
8. Refining the FCM bitstream structures.
9. Study FCTM complexity.
10. Study complexity measurement metrics.
Chair(s)
Chris Rosewarne (Canon) chris.rosewarne@canon.com.au
Yuan Zhang (China Telecom) zhangy666@chinatelecom.cn
Duration
Until the next MPEG meeting
Reflector(s)
mpeg-wg4-fcm@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-wg4-fcm
Meeting
- AHG on Saturday all day (18 January 2025)
Room Size
50-70

NameAhG on MPEG immersive video
GroupWG 4 - MPEG Video Coding
Mandates
1. Prepare Conformance and reference software for MPEG immersive video 2nd edition
2. Prepare Test Model 22 of MPEG immersive video 2nd edition
3. Define common test conditions for MPEG immersive video
4. Generate and report on MPEG immersive video CTC anchor
5. Participate in Video-based visual volumetric coding joint exploration experiments
6. Document technology under consideration for MPEG immersive video
7. Document and study new technologies for immersive video coding
8. Promote MPEG immersive video outside of MPEG
9. Prepare manual of the Quality Metrics for Immersive Video (QMIV) software
Chair(s)
bart.kroon@philips.com, Bart Kroon (Chair)
dawid.mieloch@put.poznan.pl, Dawid Mieloch (Vice-chair)
Duration
Until the next MPEG meeting
Reflector(s)
Announcements: mpeg-i-visual@lists.aau.at
Offline discussion: https://git.mpeg.expert/MPEG/Video/MIV/Contributions
Subscribe
Email to: mpeg-i-visual-join@lists.aau.at
Meeting
No physical meetings
Room Size
20
December 3, January 14
Both 15:00 UTC (90 min)
Meeting ID: 957 8481 1689
Password: MPEGIVisua

NameAhG on Carriage of Green Metadata
GroupWG 3 - MPEG Systems
Mandates
1. Prepare text of ISO/IEC 23001-11:2023/ FDAM2 (Ed 3).
2. Study ISO/IEC 23001-19 on carriage of green metadata and solicit related input contributions.
3. Work on and improve the text of ISO/IEC 23001-19 on carriage of green metadata.
Chair(s)
Edouard François (InterDigital), Christian Herglotz (BTU)
Duration
Until next MPEG meeting
Reflector(s)
gen-sys@lists.aau.at – use [green] in email header
Subscribe
http://lists.aau.at/mailman/listinfo/gen-sys
Meeting
Several online sessions before the next MPEG meeting if necessary
Room Size

NameAhG on IoMT and MPEG-V
GroupGeneral/All
Mandates
1) Advance in preparing IoMT RS for the new technologies
2) Solicit further contributions for distributed processing of multimedia content with AI 
3) Study technical contribution for extending MPEG-V Part 4 (Virtual World Object Characteristics)
Chair(s)
Mihai Mitrea, Sang-Kyun Kim
Duration
Until the next MPEG WG7 Meeting
Reflector(s)
MIoTW@lists.aau.at
Subscribe
http://lists.uni-klu.ac.at/mailman/options/MIoTW
send an email to MIoTW-join@lists.aau.at
Meeting
Sun before meeting, 9am-1pm
Room Size
20
https://iso.zoom.us/j/92992119841?pwd=eksrd2Z4d09uS1VYYTB1MTZLc085UT09

NameAhG on Video-based Graphics Coding
GroupWG 7 - MPEG Coding of 3D Graphics and Haptics
Mandates
•	Propose corrections for identified issues in the V3C and V-PCC specifications
•	Coordinate scientific and technical dissemination of V-PCC and V-DMC
•	Coordinate communications of V-PCC to fairs, exhibitions, workshops, webinars
•	Solicit contributions to encapsulate V-PCC and V-DMC in scene graph 
•	Release new version of the V-DMC test model (SW and documentation) during the editing period
•	Conduct the V-DMC experiments
•	Coordinate the Joint Exploration Experiments 4 and 5
•	Coordinate editing text for the V-DMC DIS text
•	Solicit contributions on V-DMC conformance
•	Solicit additional data sets for all categories including multiple attributes
Chair(s)
Ralf Schaefer (Chair), Khaled Mammou, Danillo Graziosi
Duration
Until the next MPEG WG 7 Meeting
Reflector(s)
mpeg-3dgc AT gti. ssr. upm. es
Subscribe
To subscribe, send email to https://mx.gti.ssr.upm.es/mailman/listinfo/mpeg-3dgc
Meeting
Several online sessions before the next MPEG meeting to be announced on the 3DGH reflector ASAP (avoid Friday before the next MPEG meeting)
Room Size
F2F meeting Sunday before the next MPEG meeting (from 9h00 to 18h00)

NameAhG on MPEG Use Cases and Requirements
GroupWG 2 - MPEG Technical Requirements
Mandates
1. Support other Working Groups with the preparation of draft requirements and use case descriptions in a unified way.
2. Gather such requirements and use case descriptions for final refinement and approval by WG2.
3. Progress the development of MPEG-I Phase 3 requirements, include references to MPEG-I requirements defined elsewhere in their own documents. 
4. Progress guidelines on the drafting of WG2 requirements.
5. Improve MPEG website section regarding WG2 mission. 
6. Progress NGVC requirements based on MPEG148 contributions
Chair(s)
Mary-Luc Champel, Xiaomi (champelmaryluc@xiaomi.com)
Igor D.D Curcio, Nokia (igor.curcio@nokia.com)
Duration
Until next meeting
Reflector(s)
mpeg-req@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-req
Meeting
AhG call to be announced and agreed with other organizations
Room Size

NameAhG on Geometry-based Point Cloud Compression
GroupGeneral/All
Mandates
1. Coordinate the editing for the Enhanced G-PCC and Solid G-PCC
2. Update the TMs (SW and documentation) during the editing period
3. Conduct the G-PCC experiments for future enhancements
4. Coordinate scientific and technical dissemination of G-PCC as well as communications of G-PCC to fairs, exhibitions, workshops, webinars
5. Solicit additional data sets for all categories
Chair(s)
Hyejung Hur, Sébastien Lasserre, Yingzhan Xu
Duration
until the next MPEG WG7 meeting
Reflector(s)
mpeg-3dgc@gti.ssr.upm.es
Subscribe
to https://mx.gti.ssr.upm.es/mailman/listinfo/mpeg-3dgc
Meeting
Several online sessions during the week before the next MPEG meeting.
Room Size

NameAhG on Compression of Neural Networks for Multimedia Content Description and Analysis
GroupWG 4 - MPEG Video Coding
Mandates
1. Maintain data sets and INCTM
2. Collect further application and performance reports of NNC
3. Continue interaction with SC42, SG16/Q5, 3GPP SA4, NNEF, ONNX and the AI/ML community
4. Elaborate use cases and requirements for applying NNC to generic tensor data
5. Perform EEs on low-overhead tensor coding
Chair(s)
Werner Bailer (chair, werner.bailer@joanneum.at)
Sungmoon Chun (vice-chair, smchun@insignal.co.kr)
Duration
until next MPEG meeting
Reflector(s)
mpeg-nnr@lists.aau.at
Subscribe
Email to: mpeg-nnr-join@lists.aau.at
Meeting
January 16, 2025, 0700 UTC (online)
Room Size

NameAhG on Lenslet Video Coding (LVC)
GroupWG 4 - MPEG Video Coding
Mandates
1. Generate anchors and crosscheck for subjective assessment by Nov 24, 2024
2. Generate anchors and crosscheck for objective assessment by Dec 24, 2024
3. Datasheet design and verification by Dec 24, 2024
4. Release the Reference Lenslet Content Converter (RLC4.0) by Dec 24, 2024
5. Provide testing package by Nov 25, 2024
6. Update and crosscheck pose trace generator by Nov 25, 2024
7. Finalize rate points for CfP
8. Prepare the CfP
Chair(s)
teratani-mehrdad@aut.ac.jp, Mehrdad Teratani (Co-chair, Aichi University of Technology, )
jin.xin@sz.tsinghua.edu.cn, Xin Jin (Co-chair, Tsinghua Shenzhen International Graduate School)
Duration
Until next MPEG meeting
Reflector(s)
mpeg-i-visual@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-i-visual
Meeting
Online: TBD if needed
Room Size
20
F2F: Sunday before the MPEG week
Time: 9:00 – 13:00 local time (Geneva, Switzerland)
Zoom link to be announced

NameAhG on Syntactic Description Language
GroupWG 3 - MPEG Systems
Mandates
- To review exploration and solicit contribution to improve it.
- To solicit input on implementation guidelines, examples, and conformance and reference software
Chair(s)
Youngkwon Lim
Duration
Until the 18th MPEG Systems WG meeting
Reflector(s)
gen-sys@lists.aau.at
Subscribe
http://lists.aau.at/mailman/listinfo/gen-sys
Meeting
Room Size

NameAhG on Media Authenticity
GroupWG 2 - MPEG Technical Requirements
Mandates
1. Prepare Technical Report on media authentication.
2. Generate a unified list of definitions to describe media authentication technologies.
3. Summarize progress on technical work on media authentication within the WGs.
Chair(s)
Jonathan Pfaff, Christof Fersch, Yuan Zhang
Duration
Until next MPEG meeting
Reflector(s)
mpeg-req@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-req
Meeting
One conference call to be announced two weeks before
Room Size

NameAHG on Systems Technologies for Volumetric Media
GroupWG 3 - MPEG Systems
Mandates
1. Study and solicit contributions to improve WD of 23090-10 2nd edition.
2. Study 23090-29 and 23090-38 and solicit contributions to improve WD of 23090-10 2nd edition and 23090-18.
3. Discuss open issues in MPEG Git and propose recommended dispositions
Chair(s)
Youngkwon Lim, Lauri Ilola
Duration
until the 18th MPEG Systems WG meeting
Reflector(s)
gen-sys@lists.aau.at
Subscribe
http://lists.aau.at/mailman/listinfo/gen-sys
Meeting
Room Size

NameAhG on Video Decoding Interface
GroupWG 3 - MPEG Systems
Mandates
1. To study TuC and WD, and solicit contributions to improve it
2. To solicit implementation of VDI extension for OpenMAX, MSE, WebCodec, or Vulkan.
3. Communicate with 3GPP and Khronos on the API extensions and other relevant topics related to VDI
Chair(s)
Youngkwon Lim, Emmanuel Thomas, Thomas Stockhammer
Duration
Until the 18th MPEG Systems WG meeting
Reflector(s)
gen-sys@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/gen-sys
Meeting
Room Size

NameAHG on Systems technologies for media coding for machine standards
GroupWG 3 - MPEG Systems
Mandates
- To study VCM, FCM and ACM and solicit contributions on systems' technologies to support them.
Chair(s)
Jin Young Lee, Sachin Deshpande, Youngkwon Lim
Duration
until the next MPEG meeting
Reflector(s)
gen-sys@lists.aau.at
Subscribe
http://lists.aau.at/mailman/listinfo/gen-sys
Meeting
no meeting
Room Size

NameAhG on Market Needs
GroupWG 2 - MPEG Technical Requirements
Mandates
Metaverse-related activity 
1) Work on dissemination of the MPEG metaverse-related activities to fora (e.g., Metaverse Standards Forum) and the public, including the production of a white paper. 
NGVC
2) Run the market needs analysis on the NGVC
Chair(s)
Gilles Teniou, Tencent (teniou@tencent.com)
Justin Ridge, Nokia (justin.ridge@nokia.com)
Duration
Until the next MPEG meeting
Reflector(s)
mpeg-market@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-market
Meeting
3 Dec (6-7:30am UTC): NGVC - Presentation of the Market Needs template
Room Size
Week 6-10 Jan (TBA 2 weeks in advance): NGVC Collect responses
9th December 2024 10am-11am UTC: Metaverse white paper

NameAhG on Omnidirectional MediA Format (OMAF)
GroupGeneral/All
Mandates
1) Study requirements of MPEG-I phases 2 and 3 especially in relation to OMAF.
2) Study the TuC of immersive media metrics.
3) Resolve 4CC collision between OMAF and CMAF.
4) Maintain relationship with relevant SDOs (e.g., 3GPP SA4).
Chair(s)
Sachin Deshpande, Ye-Kui Wang, Youngkwon Lim
Duration
Until the next WG3  Meeting
Reflector(s)
gen-sys@lists.aau.at
Subscribe
http://lists.aau.at/mailman/listinfo/gen-sys
Meeting
Before MPEG meeting with 2-week notice (if needed)
Room Size

NameAhG on MPEG-AI
GroupWG 2 - MPEG Technical Requirements
Mandates
Technical report on MPEG-AI
  1.Define the MPEG vision on AI
    -How AI will be used? (compression, other tasks, configurations…)
    -Identify challenges for AI in compression
  2.Identify and document AI-related activities (Technologies and applicable use cases) within MPEG as candidate parts of the MPEG-AI project
  3.Collect associated working assumptions (seek inputs from members from other WGs)
Requirements
  4. Collect requirements (from mandate 2) related to AI for multimedia
AI indication
  5. Investigate the AI indication and marking methods for media
Chair(s)
Gilles Teniou, Tencent (teniou@global.tencent.com)
Dong Tian,InterDigital (dong.tian@interdigital.com)
Duration
Until the next MPEG meeting
Reflector(s)
mpeg-ai@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-ai
Meeting
To be announced on a 2 weeks notice
Room Size

NameAHG on compressed video for study of quality metrics (CVQM)
GroupAG 5 - MPEG Visual Quality Assessment
Mandates
1. Study learning-based video codecs, 4K/UHD content, and rate points suitable for CVQM phase 2 study and prepare bitstreams for phase 2 subjective quality study;
2. Process and analyse subjective viewing results from CVQM phase 1 study and prepare a draft summary report;
3. Study the correlation between objective quality metrics and subjective quality scores in the CVQM dataset;
4. Study the suitability of learning-based quality metrics for evaluating compression performance.
Chair(s)
Yan Ye (Alibaba), Zhibo Chen (BJZK), Benjamin Bross (Fraunhofer HHI), Mathias Wien (RWTH Aachen University)
Duration
until the next AG 5 meeting
Reflector(s)
mpeg-vqa@lists.rwth-aachen.de
Subscribe
https://lists.rwth-aachen.de/postorius/lists/mpeg-vqa.lists.rwth-aachen.de/
Meeting
2024-11-21 1600-1730h UTC

Further meetings are held online and are to be announced at least two weeks before the AHG meeting date.
Room Size

NameAhG on Guidelines for Subjective Visual Quality Evaluation
GroupAG 5 - MPEG Visual Quality Assessment
Mandates
1. Maintain the output document on “Guidelines for verification testing of visual media specifications”;
2. Maintain the output document on “Guidelines for remote expert viewing sessions”;
3. Consider extensions and refinements of the guidelines for remote expert viewing for more test types.
4. Finalize a guideline for the naming conventions for raw video data.
Chair(s)
Mathias Wien (RWTH Aachen University), Lu Yu (Zhejiang University), Joel Jung (Tencent)
Duration
until the next AG 5 meeting
Reflector(s)
mpeg-vqa@lists.rwth-aachen.de
Subscribe
https://lists.rwth-aachen.de/postorius/lists/mpeg-vqa.lists.rwth-aachen.de/
Meeting
Meetings are held online and are to be announced at least two weeks before the AHG meeting date.
Room Size

NameAhG on multi-layer video coding verification testing
GroupAG 5 - MPEG Visual Quality Assessment
Mandates
1. Prepare a test plan for verification testing of MPEG multilayer video coding technologies along the lines of industry usecases.
2. Study coding performance and characteristics of available and proposed video test material.
3. Prepare and conduct expert viewing for purposes of subjective quality evaluation of multilayer coding technologies and update the test plan according to the outcome.
4. Study and coordinate with JVET and WG 4 on encoder settings for multilayer coding technologies under test.
Chair(s)
Kenneth Anderson (Ericsson), Olena Chubach (Mediatek), Lorenzo Ciccarelli (V-Nova), Philippe de Lagrange (InterDigital)
Duration
Until the next AG 5 meeting
Reflector(s)
mpeg-vqa@lists.rwth-aachen.de
Subscribe
https://lists.rwth-aachen.de/postorius/lists/mpeg-vqa.lists.rwth-aachen.de/
Meeting
2024-11-22 16:00-18:00h UTC

Further meetings are held online and are to be announced at least two weeks before the AHG meeting date.
Room Size

NameAhG on Font Format
GroupWG 3 - MPEG Systems
Mandates
1. Review and discuss proposed editorial comments and determine if the requested changes can be accommodated during the extended editorial period to prepare the updated text of ISO/IEC 14496-22/DIS (WG03/N01388).
2. Review the DIS text of ISO/IEC 14496-22 5th edition (WG03N01388) and prepare and submit ballot comments via members’ National Bodies.
Chair(s)
Vladimir Levantovsky (Type Standards)
Duration
Until next meeting
Reflector(s)
mpeg-otspec@lists.aau.at; https://github.com/MPEGGroup/OpenFontFormat
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-otspec
Meeting
Zoom conference call may be held, if necessary (detailed information will be posted to the AHG reflector)
Room Size

NameAhG on AI based 3D graphics coding
GroupWG 7 - MPEG Coding of 3D Graphics and Haptics
Mandates
- Release the initial version test model for AI-PCC
- Generate the initial working draft for AI-PCC
- Coordinate the AI-PCC EEs including feature enhancement, learning-based attribute coding and reproducible coding
- Refine common test conditions for AI-PCC
Chair(s)
Dong Tian
Alexandre Zaghetto
Vladyslav Zakharchenko
Duration
Until the next MPEG WG7 meeting
Reflector(s)
mpeg-3dgc@gti.ssr.upm.es
Subscribe
https://mx.gti.ssr.upm.es/mailman/listinfo/mpeg-3dgc
Meeting
1. 1400-1600, Tue Dec 3rd (UTC): Online AhG meeting.
2. 1300-1800, Sun Jan 19th (Geneva time): In person meeting
Room Size
50

NameAHG on exploration on media type independent metadata
GroupWG 3 - MPEG Systems
Mandates
- to study exploration document (WG03N1410) and solicit contributions to improve it.
Chair(s)
Emmanuel Thomas, Imed Bouazizi, Youngkwon Lim
Duration
until the next MPEG meeting
Reflector(s)
gen-sys@lists.aau.at
Subscribe
http://lists.aau.at/mailman/listinfo/gen-sys
Meeting
- Sunday before the MPEG meeting 1:00pm - 3:00pm
Room Size
30

NameAhG on Smart Contracts for Media
GroupWG 3 - MPEG Systems
Mandates
1. Solicit industry participation and contributions for ISO/IEC 23000-23 Decentralized Media Rights Application Format based on ISO/IEC 21000-23 Smart Contracts for Media taking into consideration the latest AI regulatory developments.

2. Study and solicit contributions (e.g., technologies and APIs) for ISO/IEC 23000-23 Decentralized Media Rights Application Format in the areas: a) Smart contracts and DLTs; b) Rights and metadata management; c) Content and creator IDs; and c) File formats and streaming protocols.

3. Enhance collaboration with liaisons (e.g., ISO/TC 307/WG3, ITU-T Q.22/SG16, INATBA, W3C DIDs, ISO/TC46/SC9/WG18 ISCC and EC) and conduct further dissemination activities (e.g., Digital Asset Management WG - Metaverse Standards Forum).

4. Study and improve the WD of ISO/IEC 23000-23 Decentralized Media Rights Application.
Chair(s)
Panos Kudumakis and Mirko Zichichi
Duration
Until the 149th MPEG meeting
Reflector(s)
smart-contracts@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/smart-contracts
Meeting
Biweekly calls starting Wed 20 Nov. 2024, alternatively at 14:00 & 16:00 UTC (2 h)
Room Size

NameAhG on scene-based media interchange
GroupWG 7 - MPEG Coding of 3D Graphics and Haptics
Mandates
1. Complete specification of “independent mapping space” for study text of DIS;
2. Complete mappings between glTF 2.0 and the Independent Mapping Space for KHR extensions;
3. Extend the independent mapping space to either identify or fill in “gaps” that exist between the IMS and glTF 2.0, especially for KHR extensions;
4. Complete the definition of a normative data model to label scene graphs and assets with the entities of the Independent Mapping Space (cf. m64065), and include this model in an Annex to the study text of DIS for Part 28;
5. Add a new annex to the study text to describe annotation using JSON and XML commenting process;
6. Continue to refine the work plan for Part 28;
7. Continue experiments and tests related to the test data and test methodologies for scene-based media interchange;
8. Continue to collect test data for scene-based media interchange;
9. Study the types of information that should be reported as a result of a translation process, and determine where such information should be stored, e.g.,  in an asset if applicable;
10. Study the feasibility of creating a “golden” asset to facilitate translation between asset types;
11. Contribute toward the merge of SMI requirements into the MPEG-I requirements document); 
12. Continue to refine the requirements for SMI and submit updates to MPEG 149;
13. Continue to solicit industry engagement.
Chair(s)
Arianne T. Hinds (ahinds@global.tencent.com), Euee Jang (esjang@hanyang.ac.kr)
Duration
until the start of MPEG 149
Reflector(s)
mpeg-render@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-render
Meeting
Biweekly teleconference calls starting on Thursday 21 November 2024 from 14:00 to 15:30 UTC.

In person on Sunday prior to the start of the next MPEG meeting, from 12h to 16h
Room Size
10
Start time for meetings may vary based on agreement by participants that the meeting time should be changed, e.g., to better accommodate participants from Asia or Europe. Additional meetings as needed and scheduled, to be announced no less than two weeks in advance on the reflector.
Join Zoom Meeting
https://us02web.zoom.us/j/84511920007?pwd=fTipIAelfewHGPbBkaJOJpKkYVPZbs.1

Meeting ID: 845 1192 0007
Passcode: 003303

NameAhG on MPEG File Formats
GroupWG 3 - MPEG Systems
Mandates
1.	Discuss and address the Github and Gitlab issues.
2.	Support the groups using the file formats (including audio, DASH, CMAF, OMAF, MIAF, V3C systems, Haptics, NBMP et al.)
3.	Study the Technologies under Consideration and Working Draft documents and propose improvements. Study the defect reports and propose corrigendum text.
4.	Study the proposed clarifications on the definition of brands and the use of versions, particularly in the ISO base media file format, and suggest improvements.
5.	Maintain and update the conformance streams, reference software, white papers and one-pagers, and registration authority, as needed. 
6.	Study the extension to the codecs parameter for video tracks 
7.	Study the storage of layered tracks and mixed codecs in a single track
8.	Investigate solutions for signaling encryptions options and for improving the robustness of encryption methods
9.	Investigate how to update the specifications to use the latest SDL standard
Chair(s)
Cyril Concolato  and Miska Hannuksela
Duration
Until next meeting
Reflector(s)
mp4-sys@lists.aau.at
https://github.com/MPEGGroup/FileFormat
Subscribe
https://lists.aau.at/mailman/listinfo/mp4-sys
Meeting
Room Size

NameAhG on MPEG DASH
GroupWG 3 - MPEG Systems
Mandates
1. Study and suggest improvements to the 2nd draft text of 6th edition FDIS (WG03N1358)
2. Study technologies under consideration (TuC; WG03N1359) and defect under investigation (DuI; WG03N1360)
3. Continue to work on conformance and reference software
Chair(s)
Iraj Sodagar, Christian Timmerer, Ali C. Begen
Duration
Until the next MPEG meeting
Reflector(s)
dash@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/dash
Meeting
Calls:
•	Dec 3, 8:00-10:00 PDT/ 16:00-18:00 UTC
•	Jan 7, 8:00-10:00 PDT/16:00-18:00 UTC

Zoom link: https://iso.zoom.us/my/sodagar
Password in the MPEG calendar.
Room Size

NameAHG on MPEG-I Scene Description and Avatar Representation Formats
GroupWG 3 - MPEG Systems
Mandates
1. Work with the audio group WG06 on progressing the integration of MPEG-I audio into the MPEG-I SD 
2. Progress the work on MPEG-I Scene Description taking into account the technologies in the WD of Amd.1 WG03_N1399, the EE description in WG03_N1400 and the TuC in WG03_N1368
3. Progress the standardization process for Avatar Representation formats taking into account the technologies in the WD of Amd.1 WG03_N1398 and the EE description in WG03_N1379
4. Dispose issues in internal and public git environment
5. Collect/coordinate test assets that support the development of the MPEG-I Scene description and Avatar Representation Formats
6. Create conformance files to be shared with the FF group and generate sample files, test writers and readers
7. Submit the Second Edition extensions to Khronos 
8. Prepare a white paper to be published by AG03 at MPEG#149
9. Work on conformance and reference software based on procedures to be able to go to CD for 23090-24 Amd.1, and consider adding regression tests for new extensions.
10. Extend the Gltf validator to address the MPEG_ extensions, and follow up with Khronos to integrate our reference software to https://github.com/KhronosGroup/glTF-Validator
11. Collect information on ongoing scene description related work in the promote MPEG-I Scene Description and Avatar Representation Formats, in particular to Khronos, Metaverse Standards Forum, 5G-MAG and 3GPP
Chair(s)
Thomas Stockhammer (tsto@qti.qualcomm.com)
Mary-Luc Champel (champelmaryluc@xiaomi.com)
Gaëlle Martin-Cocher (Gaelle.Martin-Cocher@InterDigital.com)
Duration
Until MPEG#149
Reflector(s)
mpeg-i-scene@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-i-scene
 
Please check gitlab discussions here:
https://git.mpeg.expert/MPEG/Systems/SceneDescription/MPEG-Contributions/-/issues

Please check public github discussions here:
https://github.com/MPEGGroup/Scene-Description
Meeting
AHG Meetings
•	Call: Monday December 16, 2024 14:30 – 16:00 UTC (15:30 – 17:00 CET) 
  o	From 15:15 UTC onwards WG06 joins for Audio.
  o	Additional participation of WG06 will be discussed during this slot
•	F2f: Sunday January 19, 2025 15:00 – 19:00 local
Note:
•	3GPP SA4#130, November 17 – 31, 2024, Orlando, US
•	Thomas vacation December 23, 2024 – Jan 7, 2025
•	MPEG#149, January 20-24, 2025, Geneva, Switzerland
Logistics
•	Zoom: http://iso.zoom.us/my/stockhammer, Passwd as of MPEG#149
•	Chairs create issues in gitlab to collect comments.
•	If MPEG#148 repository is not yet available, use MPEG#148 repository.

Calendar
- Subscription link for MPEG AHG Calls:  http://mpeg.expert/live/nextcloud/remote.php/dav/public-calendars/HAwkATGsmc5bN3Qy?export
- Public link for MPEG AHG Calls http://mpeg.expert/live/nextcloud/index.php/apps/calendar/p/HAwkATGsmc5bN3Qy
Room Size
40
40

NameAhG on on Video Coding for Machines
GroupWG 4 - MPEG Video Coding
Mandates
1. Prepare output documents.
2. Release VCMRS v0.11 software.
3. Conduct Core Experiments
4. Continue developing VCM technologies.
5. Continue developing VCM WD.
6. Continue investigating evaluation methodologies, metrics, and cross-check procedure.
7. Continue collecting and refining test and training materials, including ground truth.
8. Collaborate with the WG4 FCM AhG and WG5 AhGs 8.
9. Conduct study of the common test conditions.
10. Study of evaluation framework
11. Conduct further study on HLS
Chair(s)
Shan Liu (shanl@global.tencent.com)
Chris Rosewarne (chris.rosewarne@canon.com.au)
Duration
Until next WG4 meeting
Reflector(s)
mpeg-wg4-vcm@lists.rwth-aachen.de
Subscribe
https://lists.rwth-aachen.de/postorius/lists/mpeg-wg4-vcm.lists.rwth-aachen.de/
Meeting
Face-to-face all day: Sunday January 19.
Room Size
60
AhG call on spatial resampling non-monotonicity fix on Nov 25

NameAhG on Haptics Coding
GroupWG 7 - MPEG Coding of 3D Graphics and Haptics
Mandates
Phase 1:
1.	Address ongoing issues in the Reference and Conformance software and Ensure maintenance of the code 
2.	Improve the current proposals and solicit new contributions to improve the current reference software algorithm as part of EE4
3.	Support File Format ISOBMFF and DASH for ISO/IEC 23090 part 32 on the carriage of haptics and part 37 on the reference and conformance software
Phase 2:
4.	Support the Scene Description group to test the implementation of Haptic support in the reference and conformance software for MPEG-I SD Amd2
5.	Collect additional test content for the 5 defined scenarii and proposed EEs
6.	Improve the current proposals and solicit new contributions for EE1, EE2 and EE3 for Phase 2
Chair(s)
Philippe Guillotel (philippe.guillotel@interdigital.com)
Iraj Sodagar (irajs@live.com) 
Quentin Galvane (quentin.galvane@interdigital.com)
Duration
Until next MPEG meeting
Reflector(s)
mpeg-haptics@lists.aau.at – use [Haptics] in email header
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-haptics
Meeting
Calls Nov. 27 + Dec. 18 + Jan 08 + Jan. 19 (on-site)
at 1400 UTC. Dial-in details: https://iso.zoom.us/j/7945431076?pwd=b21hT3FWWlUxRVA5S0hZSFYzRGtSUT09
Room Size

NameAhG on AhG on MPEG branding and identity
GroupAG 3 - MPEG Liaison and Communication
Mandates
1.  Define a plan for MPEG rebranding, including:
a.   Specifying requirements and objectives for items to be rebranded for mpeg websites, ppt template, referencing, social media
b.  Define a communication plan based on new inputs
2.  Identify mechanisms to deliver on the plans 
               a.  Define a list of actions.
               b.  Calling and gathering intent for support
3.  Identify and invite potential experts in the field.
Chair(s)
Gaëlle Martin-cocher gaelle.martin-cocher@interdigital.com
Ali C. Begen ali.begen@ozyegin.edu.tr
Kyuheon Kim kyuheonkim@khu.ac.kr
Duration
Until the next MPEG meeting
Reflector(s)
mpeg-ag3@lists.aau.at
Subscribe
Email to: https://lists.aau.at/mailman/listinfo/mpeg-ag3
Meeting
Geneva, CH Nov. 2024
Room Size
10
One adhoc group online meeting based on discussion over reflector
Meeting ID:AG3(Branding)
Password: 58-Caesar

NameAhG on Gaussian Splat Coding
GroupWG 4 - MPEG Video Coding
Mandates
1. Prepare use cases and requirements of Gaussian splat coding
2. Prepare data set for Gaussian splat coding
3. Define common test conditions for Gaussian splat coding
4. Prepare anchors for Gaussian splat coding
5. Investigate new Gaussian splat coding technologies
Chair(s)
Yiyi Liao, yiyi.liao@zju.edu.cn (co-chair)
Gun Bang, gbang@etri.re.kr (co-chair)
Alexandre Zaghetto, Alexandre.Zaghetto@sony.com (co-chair)
Julien Ricard, jricard@global.tencent.com (co-chair)
Duration
Until the next MPEG meeting
Reflector(s)
mpeg-gsc@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-gsc
Meeting
19 January (afternoon), in person
Room Size
60
4th December (1pm-3pm UTC), online
15th January (1pm-3pm UTC), online
TBD

NameAhG on MPEG-I immersive audio and audio maintenance
GroupWG 6 - MPEG Audio Coding
Mandates
1.	Execute Workplan on MPEG-I immersive audio
2.	Study and progress the integration of MPEG-I immersive audio into WG3 MPEG-I scene description 
3.	Maintain audio-related text, conformance data and reference software
4.	Discuss potential verification test and demonstrator
Chair(s)
Thomas Sporer (FhG-IDMT) thomas.sporer at idmt.fraunhofer.de (Mandates 1,2,4)
Schuyler Quackenbush (ARL) srq at audioresearchlabs . com (Mandate 1, 2)
Christof Fersch (Dolby) christof.fersch at dolby.com (Mandate 3)
Sujeet Mate (Nokia) Sujeet.mate at nokia.com (Mandate 1, 2, 4)
Duration
Until next WG 6 Meeting
Reflector(s)
mpeg-audio @ idmt.fraunhofer.de
Subscribe
•To subscribe to the list use the instructions in m68318 (Sapporo Meeting)
•To post on the mailing list, send email to mpeg-audio @ idmt.fraunhofer.de 
Note that posting is blocked for non-members
Note that the previously used email list will stop operation soon.
Meeting
Room Size
WG6 zoom AhG meetings as follows:

Joint meeting with Scene Description to discuss common architecture: 
•	See Scene Description AhG meeting schedule


Tue 2024-11-26 13:00-17:00 UTC (MPEG-I, review documents and workplan)
 
Wed/Thu 2025-01–15/16 13:00-17:00 UTC 

https://iso.zoom.us/j/2162331649?pwd=MVdzd1l0ejRPNXNubmVYZnd5bjlyZz09

(2025-01-16 only if needed)
Note: 
Documents to be discussed in the AhG meeting in January should be registered and uploaded before 2025-01-10 23:59 UTC

(October 31 only if needed)
Note: 
1)	Documents to be discussed in the October 30/31 AhG must be registered and uploaded no later than October 24 2359 UTC

NameAhG on Audio coding for machines
GroupGeneral/All
Mandates
1.	Identify industries and Use Cases for ACoM
2.	Promote Call for Interest on ACoM
3.	Continue to work on the use cases and requirements document
4.	Collect test material for ACoM
5.	Prepare CfE for ACoM
6.	Collaborate with ITU-T SG21/Q.6 VCEG
Chair(s)
Sang-Wook Kim (CAU)  swkim4 at cau.ac.kr
Thomas Sporer (FhG-IDMT) thomas.sporer at idmt.fraunhofer.de
Duration
Until next WG 6 Meeting
Reflector(s)
mpeg-acom@lists.aau.at
Subscribe
https://lists.aau.at/mailman/listinfo/mpeg-acom
Meeting
Room Size
WG6 zoom AhG meetings on ACoM as follows:

Tue 2025-01-14 1200-1400 UTC
Additional online AhG meetings might be announced via the Email reflector two weeks in advance. (tbd: AhG meeting Sunday before MPEG with WG2)

Zoom link:
https://iso.zoom.us/j/2162331649?pwd=MVdzd1l0ejRPNXNubmVYZnd5bjlyZz09

Note: 
1)	Documents to be discussed in the AhG meeting in January should be registered and uploaded before Friday 2025-01-10 23:59 UTC
2)	WG2 Use Case and Requirements should be invited to AhG meeting

Ad hoc groups from other meetings:
MPEG 148, MPEG 147, MPEG 146, MPEG 145, MPEG 144, MPEG 143, MPEG 142, MPEG 141, MPEG 140, MPEG 139, MPEG 138, MPEG 137, MPEG 136, MPEG 135

Download the current ad hoc group rules for MPEG AGs and WGs here: