Ad hoc groups

1.	continue to consolidate and improve of ISO/IEC 23001-11 Ed.3 AMD2
2.	continue to consolidate and improve of ISO/IEC 23001-19 Carriage of green metadata
3.	study the transport of MPEG-GREEN Access Units over MPEG-2 systems (ISO/IEC 13818-1 aka. Rec. ITU-T H.222.0) and solicit contributions that improve ISO/IEC JTC 1/SC 29/WG 3/N 1517

Olivier Le Meur, Christian Herglotz

Until next MPEG meeting

gen-sys@lists.aau.at – use [green] in email header

http://lists.aau.at/mailman/listinfo/gen-sys

Several online sessions before the next MPEG meeting if necessary

1. Finalize CVQM-UHD subjective quality assessment experiments and prepare summary report on CVQM-UHD;
2. Identify a set of public datasets suitable for use to study quality metrics in the context of the CVQM activities;
3. Study the correlation between objective quality metrics and subjective quality scores using the CVQM dataset as well as the identified set of public datasets;
4. Study the suitability of learning-based quality metrics for evaluating compression performance.

Yan Ye, Zhibo Chen, Benjamin Bross, Mathias Wien

until the next AG 5 meeting

mpeg-vqa@lists.rwth-aachen.de

https://lists.rwth-aachen.de/postorius/lists/mpeg-vqa.lists.rwth-aachen.de/

Meetings are held online and are to be announced at least two weeks before the AHG meeting date.

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 tensor data from AI-based media processing and study relation to other MPEG activities
5. Continue EEs on NNC for tensor data from AI-based media processing

werner.bailer@joanneum.at,Werner Bailer (chair)
smchun@insignal.co.kr,Sungmoon Chun (vice-chair)

until next MPEG meeting

mpeg-nnr@lists.aau.at

Email to: mpeg-nnr-join@lists.aau.at

Thursday, October 2, 2025, 06:00 UTC (online)

1. Explore and propose potential future changes and updates to the text of OFF 5th edition.

Vladimir Levantovsky (Type Standards)

Until next meeting

mpeg-otspec@lists.aau.at; https://github.com/MPEGGroup/OpenFontFormat

https://lists.aau.at/mailman/listinfo/mpeg-otspec

Zoom conference call may be held, if necessary (detailed information will be posted to the AHG reflector)

1. Develop and release updated FCTM software, anchors, WD, and CTTC.
2. Conduct Core Experiments.
3. Conduct FCTM studies (FE1-2 on training and CTTC)
4. Investigate remaining causes of discrepancy in FCTM simulations and propose solutions.
5. Continue to refine Common Test and Training Conditions.
6. For FE2, solicit additional test datasets for Pose estimation.
7. Study FCTM complexity.
8. Investigate testing conditions for a near-lossless operating point.
9. Investigate performance for small object detection.

chris.rosewarne@canon.com.au,Chris Rosewarne (Canon) 
zhangy666@chinatelecom.cn,Yuan Zhang (China Telecom)

Until the next MPEG meeting

mpeg-wg4-fcm@lists.aau.at

https://lists.aau.at/mailman/listinfo/mpeg-wg4-fcm

Monday 6th October: All day.

50-70

Aug 25: Interim AhG call on FE1 progress

1. Refine the CD text on media authenticity and address ballot comments. 
2. Summarize progress on technical work on media authenticity within the WGs.

Jonathan Pfaff (Fraunhofer HHI) jonathan.pfaff@hhi.fraunhofer.de
Christof Fersch (Dolby) christof.fersch@dolby.com
Yuan Zhang (China Telecom) zhangy666@chinatelecom.cn

Until next MPEG meeting

mpeg-req@lists.aau.at

https://lists.aau.at/mailman/listinfo/mpeg-req

Conference call to be announced two weeks before

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, ITU-T SG21, INATBA, W3C DIDs, ISCC, AMAS 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.

Panos Kudumakis and Mirko Zichichi

Until the 152nd MPEG meeting

smart-contracts@lists.aau.at

https://lists.aau.at/mailman/listinfo/smart-contracts

Biweekly calls starting Wed 16 July 2025, alternatively at 13:00 & 15:00 UTC (2 h)

1. Finalize the report on the test of MPEG multilayer video coding technology
2. Study impact of encoder-side parameters in the LTM software relative to the configuration used in the tests reported in AG5N168.
3. Recommend whether to publish AG5N168.

Kenneth Anderson, Olena Chubach, Philippe de Lagrange

Until the next AG 5 meeting

mpeg-vqa@lists.rwth-aachen.de

https://lists.rwth-aachen.de/postorius/lists/mpeg-vqa.lists.rwth-aachen.de/

2025-07-10 0500 UTC (max 2h)
2025-07-24 0500 UTC (max 2h)

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

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.

Mathias Wien, Lu Yu, Joel Jung

until the next AG 5 meeting

mpeg-vqa@lists.rwth-aachen.de

https://lists.rwth-aachen.de/postorius/lists/mpeg-vqa.lists.rwth-aachen.de/

Meetings are held online and are to be announced at least two weeks before the AHG meeting date.

1. Study any comments on ISO/IEC DIS 23090-23 Conformance and reference software for MPEG immersive video
2. Document and study new technologies for immersive video coding
3. Promote MPEG immersive video outside of MPEG

bart.kroon@philips.com, Bart Kroon (Chair)
dawid.mieloch@put.poznan.pl, Dawid Mieloch (Vice-chair)

Until the next MPEG meeting

Announcements: mpeg-i-visual@lists.aau.at
Offline discussion: https://git.mpeg.expert/MPEG/Video/MIV/Contributions

Email to: mpeg-i-visual-join@lists.aau.at

No physical meetings.

Online meetings (if any) will be planned with two weeks notice.

Meeting ID: 957 8481 1689
Password: MPEGIVisua

- To review WD and TuC and solicit contribution to improve the 2nd edition of ISO/IEC 14496-34.
- To execute the workplan on reference software and conformance

Youngkwon Lim

Until the 21st MPEG Systems WG meeting

gen-sys@lists.aau.at

http://lists.aau.at/mailman/listinfo/gen-sys

1. Study and solicit contributions to improve CD and TuC of 23090-10 2nd edition.
2. Discuss open issues in MPEG Git and propose recommended dispositions

Youngkwon Lim, Lauri Ilola

until the 21st MPEG Systems WG meeting

gen-sys@lists.aau.at

http://lists.aau.at/mailman/listinfo/gen-sys

- F2F meeting on Sunday before the meeting
- details will be announced through the reflector

20

1.	To contribute to the execution of the Core Experiments identified in Description of Core Experiments on Graph Genomes N273 and on genomic information representation N272
2.	To contribute to the development of Part 1 and Part 2 Amd1 Support of graph genome
3.	To contribute to the development of a 2nd edition 23092-5 to support Part 6 and the new technologies identified by the answer to the call for technology
4.	To support the organization and continuing the progress of the hackathon disseminating the information and supporting the participants.
5.	To finalize the reference software annex to 23092-4 3rd edition
6.	To compile common test conditions for the evaluation of MPEG-G performance
7.	To collect additional test data useful to be used for executing CEs on graph genome and native representation of DNA methylation information.
8.	To build a complete MPEG-G dataset repository on the official MPEG content ftp.
9.	To disseminate the information and coordinate the activities carried out by ISO/IEC JTC 1/SC 29/WG 8 to other ISO TCs, GA4GH and other organizations
10.	Continue the survey and study the advantages and disadvantages of existing genomics security and privacy practices and standards, to identify list of relevant organizations and people

Raymond Krasinski (Philips)
Paolo Ribeca (Bioss)

Until the next WG8 meeting

SC29-WG8-AHG@listes.epfl.ch

To subscribe, send email to SC29-WG8-AHG-subscribe@listes.epfl.ch

Yes

10

As needed, virtual meetings for the coordination of the development of the AHG mandates may be scheduled on zoom with the appropriate advanced notice. An Ad Hoc virtual meeting on Zoom preceding the next MPEG meeting will take place on Friday 3rd of October at 14:00 CET to 17:00 CET and a face to face meeting will be held in Geneva at 15h on the 6th of October.

- To study VCM, FCM and ACoM and solicit contributions on systems' technologies to support them.
- To support other WGs on evaluating the questions related to bitstream structure design of such technologies

Jin Young Lee, Sachin Deshpande, Youngkwon Lim

until the next MPEG meeting

gen-sys@lists.aau.at

http://lists.aau.at/mailman/listinfo/gen-sys

no meeting

- to study exploration document (WG03N1564) and solicit contributions to improve it.
- to study bitstream structure of the recent MPEG audio standards and solicit contributions on carrying application specific metadata in audio AU.

Emmanuel Thomas, Imed Bouazizi, Youngkwon Lim

until the next MPEG meeting

gen-sys@lists.aau.at

http://lists.aau.at/mailman/listinfo/gen-sys

- a conference call
- details to be announced through the reflector

1.	Collect requirements for profiles based on use cases
2.	Extend, perform, and evaluate core experiments
3.	Determine the impact of the profiles on MPEG-G compression performance 
4.	Draft the specification of Part 7 Application formats and profiles
5.	Verify the compatibility and consistency of the Part 7 specification

Yeremia Gunawan Adhisantoso (Leibniz University Hannover), Patrick Cheung (Philips NL)

Until the next WG8 meeting

WG8-Profiles-AHG@listes.epfl.ch

To subscribe, send email to WG8-Profiles-AHG-subscribe@listes.epfl.ch

YES

10

As needed, virtual meetings for the coordination of the development of the AHG mandates may be scheduled on zoom with the appropriate advanced notice. An Ad Hoc virtual meeting on Zoom preceding the next MPEG meeting will take place on Friday October 3rd at 15:00 UTC to 17:00 UTC and a face to face meeting will be held in Geneva at 17h (15h UTC).

1. Prepare Lenslet Video Test Model (LVTM)
2. Generate test results using LVTM
3. Conduct Core Experiments for LVC
4. Continue Exploration Experiments on RLC

teratani-mehrdad@aut.ac.jp, Mehrdad Teratani (Co-chair, Aichi University of Technology, Japan)
jin.xin@sz.tsinghua.edu.cn, Xin Jin (Co-chair, Tsinghua Shenzhen International Graduate School, China)

Until next MPEG meeting

mpeg-i-visual@lists.aau.at

https://lists.aau.at/mailman/listinfo/mpeg-i-visual

In person on Monday October 6, 2025
9:00 – 18:00 Local time

20

Online AhG meeting if needed.

Zoom link to be announced

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.

Mary-Luc Champel, Xiaomi (champelmaryluc@xiaomi.com)
Igor D.D Curcio, Nokia (igor.curcio@nokia.com)

Until next meeting

mpeg-req@lists.aau.at

https://lists.aau.at/mailman/listinfo/mpeg-req

AhG call to be announced and agreed if needed

1. Continue to refine the work plan for Part 28;
2. Continue experiments and tests related to the test data and test methodologies for scene-based media interchange;
3. 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;
4. Continue to study examples of using SMI with sample glTF assets;
5. Write a white paper on SMI;
6. Continue to solicit industry engagement (e.g., reach out to Metaverse Standards Forum);

ahinds@global.tencent.com,Arianne T. Hinds
esjang@hanyang.ac.kr,Euee S. Jang

until the start of MPEG 152

mpeg-render@lists.aau.at

https://lists.aau.at/mailman/listinfo/mpeg-render

Biweekly teleconference calls starting on Thursday 7 August 2025 from 14:00 to 15:30 UTC.

In person on Monday prior to the start of the next hybrid MPEG meeting, from 12h to 15h

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/81790279100?pwd=qYbk30ufNPaRASr22VaK29bVxTkZ7d.1

Meeting ID: 817 9027 9100
Passcode: 133748

- Collect and study additional use cases and technologies connected to the decentralized processing of media by AI in IoMT
- Study the gaps between existing IoMT technologies and the needs of distributed hybrid media AI processing environment, with authentication/tracking of sources, destinations, and processing types applied on a hybrid content
- Study the means for integrating existing traceability/authentication mechanisms (both inside and ouside ISO) in IoMT
- Study the means for ensuring processing by AI on distributed processing platforms

Mihai Mitrea, Sang-Kyun Kim

Until the next MPEG WG7 Meeting

MIoTW@lists.aau.at

http://lists.uni-klu.ac.at/mailman/options/MIoTW
send an email to MIoTW-join@lists.aau.at

Mon before meeting, 2pm

20

https://iso.zoom.us/j/92992119841?pwd=eksrd2Z4d09uS1VYYTB1MTZLc085UT09

•	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 V-DMC test model (SW and documentation) during the editing period
•	Conduct the V-DMC and V-PCC experiments
•	Coordinate editing text for V-DMC FDIS
•	Solicit contributions on V-DMC conformance
•	Coordinate preparation of the V-DMC reference software
•	Solicit additional data sets for all categories including multiple attribute
•	Solicit contributions for subjective verification test

Ralf Schaefer (Chair), Danillo Graziosi

Until the next MPEG WG 7 Meeting

mpeg-3dgc AT gti. ssr. upm. es

To subscribe, send email to https://mx.gti.ssr.upm.es/mailman/listinfo/mpeg-3dgc

Several online sessions before the next MPEG meeting to be announced on the 3DGH reflector ASAP (avoid Friday before the next MPEG meeting)
F2F on Monday before MPEG week in Geneva from 2pm to 6pm local time

60

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
6. Conduct activities to improve E-G-PCC Reference SW
7. Conduct E-G-PCC Conformance bitstream generation

Hyejung Hur, Sébastien Lasserre, Yingzhan Xu

until the next MPEG WG7 meeting

mpeg-3dgc@gti.ssr.upm.es

to https://mx.gti.ssr.upm.es/mailman/listinfo/mpeg-3dgc

Several online sessions during the week before the next MPEG meeting.

Phase 1:
1 - Solicit contributions to improve Phase 1 standard and reference software algorithm as part of EE4
2 - Support File Format ISOBMFF and DASH for ISO/IEC 23090 part 32 for Haptics and for the conformance part 37 
3 - Finalize the white paper on Haptics to be published by AG3

Phase 2:
4 - Progress the work for implementing the architecture of the Spatial Haptic Model (SHM) and integration with MPEG-I SD
5 - Solicit contributions for EE1, EE2, EE3 and EE5 for Phase 2
6 - Release Evaluation Platform (HEP) 1.0

Philippe Guillotel (philippe.guillotel@interdigital.com)
Roope Raisamo (roope.raisamo@tuni.fi)
Quentin Galvane (quentin.galvane@interdigital.com)

Until next MPEG meeting

mpeg-haptics@lists.aau.at – use [Haptics] in email header

https://lists.aau.at/mailman/listinfo/mpeg-haptics

Calls Jul. 16 + Aug. 06 + Aug. 27, Sep. 17, Monday afternoon on-site pre-MPEG#152.

Dial-in details: https://iso.zoom.us/j/7945431076?pwd=b21hT3FWWlUxRVA5S0hZSFYzRGtSUT09

NGVC
1) Finalize the market needs analysis on the NGVC
2) Extract the potential requirements for the development of the codec

Gilles Teniou, Tencent (teniou@global.tencent.com)
Justin Ridge, Nokia (justin.ridge@nokia.com)

Until the next MPEG meeting

mpeg-market@lists.aau.at

https://lists.aau.at/mailman/listinfo/mpeg-market

TBA on a 2 weeks notice

1) Investigate reproducibility for AI-based methods in Media coding
- Identify different tolerance levels of reproducibility
- Analyze minimum and maximum reproducibility aspects
- Mandatory and non-mandatory AI components for reproducibility
- How the effect of computational imprecision can be mitigated
2) Communicate with SC29/WGs on related aspects
3) Produce a report on reproducibility of AI-based approaches in Media.

Gilles Teniou, Tencent (teniou@global.tencent.com)
Dong Tian, InterDigital (dong.tian@interdigital.com)

Until the next MPEG meeting

mpeg-ai@lists.aau.at

https://lists.aau.at/mailman/listinfo/mpeg-ai

Wed. Sept. 24th 3pm-4:30pm UTC

1. Study and collect proposals for advancing the Part 1 AMD PD(WG03NXXXX) and WD of Part 7 (WG0NXXXX)
2. Study technologies under consideration (TuC; WG03N1545) and defect under investigation (DuI; WG03N1475)
3. Provide a white paper draft describing the 6th edition new features and how they can be used for various applications. 
4. Continue to work on conformance and reference software

Iraj Sodagar, Ali C. Begen

Until the next MPEG meeting

dash@lists.aau.at

https://lists.aau.at/mailman/listinfo/dash

Calls:

1. Study the existing MPEG ISOBMFF and DASH standards and identify the subset of requirements of WG03N1516 that are already addressed by these standards, and identify gaps.
2. Study existing non-MPEG standards, and identify the subset of requirements of WG03N1516 that are already addressed by these standards, and identify gaps.
3. Define media authenticity workflows for WG03N1516 use cases identifying the process by various actors and entities, and required functionalities and interfaces between them.

Iraj Sodagar, Youngkwon Lim

Until the 20th MPEG Systems WG meeting

gen-sys@lists.aau.at

http://lists.aau.at/mailman/listinfo/gen-sys

Conference call:
Sept 9, 17-18 UTC.
Sept 23, 17-18 UTC.


zoom link: https://iso.zoom.us/my/sodagar

Password can be found on the mpeg calendar.

1.	Discuss and address the Github and Gitlab issues.
2.	Support the groups using the file formats (including audio, DASH, CMAF, MIAF, V3C systems, Haptics, 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 storage of layered tracks and mixed codecs in a single track, in particular how sample entry boxes and other structures apply
7.	Investigate solutions for signaling encryptions options and for improving the robustness of encryption methods
8.	Investigate how to update the specifications to use the latest SDL standard
9.	Study possible harmonization between technologies in 23001-17 and 23008-12 regarding color and component information

Cyril Concolato (Netflix) and Miska Hannuksela (Nokia)

Until next meeting

mp4-sys@lists.aau.at
https://github.com/MPEGGroup/FileFormat

https://lists.aau.at/mailman/listinfo/mp4-sys

Hybrid Meeting on Common Encryption, last week of August, F2F - SF Bay Area (US) with remote participation: 
•	AES-256 and signaling; 
•	De-CENC.

1.	Collect representative datasets for avatar animation, including skeletal and facial motion.
2.	Define evaluation metrics, software and quality assessment methodologies for comparing animation compression technologies, including for instance distortion of motion trajectories, joint position accuracy, rotational smoothness over time , and decoding latency, etc.
3.	Review existing proposals for avatar animation compression and assess their applicability to streaming and real-time use cases.
4.	Explore mechanisms to map compressed animation streams to ARF, including necessary metadata.
5.	Address open issues collected in the exploration document

Thomas Stockhammer (tsto@qti.qualcomm.com) 
Anthony TRIOUX (anthony_trioux@xidian.edu.cn)

Until MPEG152

mpeg-i-ac@lists.aau.at

https://lists.aau.at/mailman/listinfo/mpeg-i-ac
 
Please check gitlab discussions here:
https://git.mpeg.expert/MPEG/3dgh/ac/contributions/-/issues

AHG Meetings
•	Call: Monday July 28, 2025 13:30 – 14:30 UTC (15:30 – 16:30 CEST)
•	Call: Monday Sep 2, 2025 14:00 – 16:00 UTC (16:00 – 18:00 CEST)
•	F2f: Monday October 6, 2025 16:00 – 18:00 CEST (local Geneva)
	
Note:
•	AHG meeting for WG03 Scene Description
  o	Call: Monday July 28, 2025 14:30 – 15:30 UTC (16:30 – 17:30 CEST)
  o	Call: Monday Sep 2, 2025 14:00 – 16:00 UTC (16:00 – 18:00 CEST)
  o	F2f: Monday October 6, 2025 16:00 – 18:00 CEST (local Geneva)
•	3GPP SA4#133-e, July 18 - 25, 2025, online
•	MPEG#152, October 7 – 11, 2025, Geneva, Switzerland

Logistics
•	Zoom: http://iso.zoom.us/my/stockhammer, Passwd as of MPEG#151
•	Chairs create issues in gitlab to collect comments.
•	If MPEG#152 repository is not yet available, use MPEG#151 repository.

0.     Study integration of MV-HEVC in application formats

CMAF (Common Media Application Format)
1.	Study the Updated DIS, and solicit further input
2.     Study the TuC on CMAF and solicit input
3.	Solicit feedback on the open issues on GitHub and GitLab.  

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

MeMAF (Messaging Application Format)
6.	Study the requirements, working draft and solicit further input, in collaboration with 3GPP SA4.
7.	Solicit feedback on the open issues on GitLab and GitHub

Krasimir Kolarov; Cyril Concolato; Thomas Stockhammer

until 152nd meeting

CMAF - mpeg-cmaf@lists.aau.at
MIAF,  MeMAF - mpeg-maf-dev@lists.aau.at

CMAF - https://lists.aau.at/mailman/listinfo/mpeg-cmaf
MIAF, MeMAF - https://lists.aau.at/mailman/listinfo/mpeg-maf-dev

No AhG meeting

1. Prepare output documents.
2. Release VCMRS v1.1 software.
3. Conduct studies on conformance, buffer management, and colour spaces.
4. Refinement of evaluation framework.
5. Continue refining VCM technologies.
6. Collaborate with the WG3 CFM AhG, WG4 FCM AhG and WG5 AhG 8.
7. Separate VCM-level bitstream parsing of VCM-RS from VTM.

Shan Liu (shanl@global.tencent.com)
Chris Rosewarne (chris.rosewarne@canon.com.au)

Until next WG4 meeting

mpeg-wg4-vcm@lists.rwth-aachen.de

https://lists.rwth-aachen.de/postorius/lists/mpeg-wg4-vcm.lists.rwth-aachen.de/

Sept 30. Online (day long)

Bi-weekly online AhG meetings starting from mid-August until Sept 30 on Study 1-3 progress.

1. Prepare use cases and requirements of Gaussian splat coding 
2. Collect and 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 representation and coding technologies 
6. Consolidate the software tools for Gaussian splat coding 
7. Coordinate the activity on Lightweight GS (1F)

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)

Until the next MPEG meeting

mpeg-gsc@lists.aau.at

https://lists.aau.at/mailman/listinfo/mpeg-gsc

2025-10-06 - Mon afternoon, face-to-face

100

2025-07-15 – Tue (2pm-5pm UTC), online
2025-08-27 – Wed (2pm-5pm UTC), online
2025-09-26 - Fri (2pm-5pm UTC), online
2025-09-30 - Tue (1pm-4pm UTC), online
2025-10-02 - Thu (3pm-6pm UTC), online

zoom link to be distributed on the reflector

1.	Work with the audio group WG06 on progressing the integration of legacy and MPEG-I audio into the MPEG-I SD and the MSF white paper on Audio for the Metaverse
2.	Progress the work on MPEG-I Scene Description taking into account the technologies in the DAM1 of Amd.1 WG03_N1573 and the TuC in WG03_N1548.
3.	Progress the standardization process for Avatar Representation formats taking into account the technologies in the DIS in WG03_N1591 and the EE description in WG03_N1569
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.	Work on conformance and reference software based on procedures in WG03_1553.
8.	Identify collaboration and open issues related to Khronos
  a)	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
  b)	Submit the Second Edition extensions to Khronos and ensure the adoption in Khronos
  c)	Identify overlapping extensions
9.	Collect information on ongoing scene description related work and promote MPEG-I Scene Description and Avatar Representation Formats, in particular to Khronos, Metaverse Standards Forum, 5G-MAG and 3GPP, including white paper, demos at MPEG#152 and the IBC paper. 
10.	Collaborate with WG07 on Animation Compression
11.	Solicit contributions on future work topics for scene description, including scope, timeline and interest based on procedures in WG03_N1549.

Thomas Stockhammer (tsto@qti.qualcomm.com)
Mary-Luc Champel (champelmaryluc@xiaomi.com)
Gaëlle Martin-Cocher (Gaelle.Martin-Cocher@InterDigital.com)

Until MPEG#151

mpeg-i-scene@lists.aau.at

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

AHG Meetings
•	Call: Monday July 28, 2025 13:30 – 14:30 UTC (15:30 – 16:30 CEST)
•	Call: Monday Sep 2, 2025 14:00 – 16:00 UTC (16:00 – 18:00 CEST)
•	F2f: Monday October 6, 2025 16:00 – 18:00 CEST (local Geneva)

Note:
•	AHG meeting for WG07 Avatar Compression
  o	Call: Monday July 28, 2025 14:30 – 15:30 UTC (16:30 – 17:30 CEST)
  o	Call: Monday Sep 2, 2025 14:00 – 16:00 UTC (16:00 – 18:00 CEST)
  o	F2f: Monday October 6, 2025 16:00 – 18:00 CEST (local Geneva)
•	3GPP SA4#133-e, July 18 - 25, 2025, online
•	MPEG#152, October 7 – 11, 2025, Geneva, Switzerland

Logistics
•	Zoom: http://iso.zoom.us/my/stockhammer, Passwd as of MPEG#151
•	Chairs create issues in gitlab to collect comments.
•	If MPEG#152 repository is not yet available, use MPEG#151 repository.

Calendar
-	Subscription link for MPEG AHG Calls:  https://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

40

40

- Update test model TMAPv3 with new adoptions for AI-PCC
- Improve working draft for AI-PCC
- Coordinate the AI-PCC EEs including feature enhancement, learning-based attribute coding, reproducible coding, etc.
- Refine common test conditions for AI-PCC
- Coordinate the activity of introducing RAHT in AI-PCC
- Organise additional editors meeting

Dong Tian

Until the next MPEG WG7 meeting

mpeg-3dgc@gti.ssr.upm.es

https://mx.gti.ssr.upm.es/mailman/listinfo/mpeg-3dgc

- 0900 - 1700, Mon, Oct 6 (Geneva local time). In-person AhG meeting
- Several Zoom calls on EE on HLS are planned as defined in EE plan
- Several Zoom calls for editing text. To be planned in GitLab

30

1.	Work on Amd1 of MPEG-I immersive audio
2.	Study and progress the integration of MPEG-I immersive audio into WG 3 MPEG-I scene description 
3.	Study and progress file format for MPEG-I immersive audio
4.	Maintain audio-related text, conformance data and reference software
5.	Prepare verification test for MPEG-I immersive audio
6.	Study and progress media authenticity for MPEG audio technologies
7.	Study and progress MPEG-4 audio immersive interchange format

Thomas Sporer (FhG-IDMT) thomas.sporer at idmt.fraunhofer.de
Christof Fersch (Dolby) christof.fersch at dolby.com 
Sujeet Mate (Nokia) Sujeet.mate at nokia.com
Moritz Fuchs (FhG-IIS) moritz.fuchs at iis.fraunhofer.de

Until next WG 6 Meeting

mpeg-audio @ idmt.fraunhofer.de

•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.

WG6 AhG meetings as follows:

Joint meeting with WG3 scene description to discuss common architecture: 
•	See Scene Description AhG meeting schedule

•	Wed 2025-09-17 13:00-15:00 UTC (Verification Test Preparation, Zoom)
•	2025-10–06 13:00-17:00 UTC (verification test preparation, Geneva)

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

•	Documents to be discussed in the AhG meeting on 2025-09-17 shall be registered and uploaded before 2025-09-12, 23:59 UTC.
•	Documents to be discussed in the AhG meeting on 2025-10-06 shall be registered and uploaded before 2025-10-01, 23:59 UTC.
•	Documents to be discussed at the 21st WG 6 meeting shall be registered until 2025-09-29, 23:59 UTC and uploaded until 2025-10-01, 23:59 UTC.

1.	Prepare and coordinate CfP submissions
2.	Collaborate with ITU-T SG21/Q.6 VCEG
3.	Identify industries and use cases for ACoM Phase 2

Sang-Wook Kim (CAU)  swkim4 at cau.ac.kr
Thomas Sporer (FhG-IDMT) thomas.sporer at idmt.fraunhofer.de

Until next WG 6 Meeting

mpeg-acom@lists.aau.at

https://lists.aau.at/mailman/listinfo/mpeg-acom

WG6 zoom AhG meetings on ACoM as follows:

Wed 2025-07–23 08:00-10:00 UTC (topic anchors for CfP)

Zoom link https://iso.zoom.us/j/9218290580?pwd=y48Fq1IZyBEBJmva3Mq1ZKNZlbDnre.1

•	Documents to be discussed in the AhG meeting on 2025-07-23 shall be registered and uploaded before 2025-07-18, 23:59 UTC.
•	Documents to be discussed at the 21st WG 6 meeting shall be registered until 2025-09-29, 23:59 UTC and uploaded until 2025-10-01, 23:59 UTC.

1. Make the communication plan based on new inputs
2. Identify promotion activities (e.g. linkedin posts) with experts in the field.
3. Check website and identify potential issues.

Gaëlle Martin-cocher gaelle.martin-cocher@interdigital.com
Ali C. Begen ali.begen@ozyegin.edu.tr
Kyuheon Kim kyuheonkim@khu.ac.kr

Until the next MPEG meeting

mpeg-ag3@lists.aau.at

Email to: https://lists.aau.at/mailman/listinfo/mpeg-ag3

Geneve Oct. 2025

10

One adhoc group online meeting based on discussion over reflector