Ad hoc groups

1) Produce the updated report “Learning-based quality metrics and 2D video databases under study (v4)”;

2) Produce the “Draft common analysis framework for quality metric reporting” output document for structured study of correlation between objective quality metrics and subjective quality scores using the CVQM datasets and suitable public datasets;

3) Study the effectiveness of various quality metrics, including learning-based quality metrics, for evaluating compression performance using the common analysis framework;

4) Make progress towards resolving the content licensing issues of the CVQM UHD source video and releasing the CVQM UHD dataset to non-MPEG members; 

5) Study further extensions of the CVQM dataset, e.g. by including AIGC and HDR content.

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.

2026-06-08 14:00h UTC online

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. Develop guidelines for on-site expert viewing testing;
4. Maintain the guidelines for 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.

CMAF (Common Media Application Format)
1.	Study the Working Draft of 4th Edition and the TuC on CMAF and solicit input.
2.	Solicit feedback on the open issues on GitHub and GitLab

MIAF (Multi-Image Application Format)
3.	Study the TuC on MIAF, 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

Krasimir Kolarov; Cyril Concolato; Thomas Stockhammer

until 155th 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 meeting

1. Update ISO/IEC CD 26080-1 Media Authenticity Part 1: Vocabulary. 
2. Summarize progress on technical work on media authenticity within the WGs.
3. Align the vocabulory with ISO/IEC 22989:2022 and ISO/IEC 23053:2022.

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

Until next MPEG meeting

mpeg-req@lists.aau.at

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

1300-1400 UTC 25th June to further align terminology

20

1.	solicit contributions and continue improving ISO/IEC 23001-11 Ed.4
2.	support publication of ISO/IEC 23001-19
3.	continue to consolidate ISO/IEC 23001-10 Ed. 3
4.	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.	Collaborate with ITU-T SG21/Q.6 VCEG
2.	Identify industries and use cases for ACoM Phase 2
3.	Identify requirements for ACoM Phase 2
4.	Search for content and feature detection for ACoM Phase 2
5.	Work on architecture for ACoM standard
6.	Coordinate on workplan tasks

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:

•	Tue 2026-06–02 07:00-09:00 UTC 
•	Tue 2026-07–07 07:00-09:00 UTC 
Zoom link https://iso.zoom.us/j/9218290580?pwd=y48Fq1IZyBEBJmva3Mq1ZKNZlbDnre.1

•	Documents to be discussed in the AhG meeting on 2026-06-02 shall be registered and uploaded before 2026-05-29, 23:59 UTC.
•	Documents to be discussed in the AhG meeting on 2026-07-07 shall be registered and uploaded before 2026-07-03, 23:59 UTC.
•	Documents to be discussed at the 24th WG 6 meeting shall be registered until 2026-07-06, 23:59 UTC and uploaded until 2026-07-08, 23:59 UTC

1.	Work on Amd1 of MPEG-I immersive audio
2.	Study and progress the integration of MPEG-I immersive audio into MPEG-I scene description (ISO/IEC 23090-14)
3.	Study relevant application for file format (e.g., ISOBMFF) support in MPEG-I immersive audio
4.	Study gaps in dynamic scene update specification in MPEG-I immersive audio
5.	Maintain audio-related text, conformance data and reference software
6.	Promote results of verification test for MPEG-I immersive audio
7.	Study and progress media authenticity for MPEG audio technologies
8.	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:
•	Tue 2026-06-02 9:00-11:00 UTC (MPEG-I immersive audio Amd1, mandate 3 and 4, Zoom)
•	Tue 2026-07-07 9:00-11:00 UTC (Any other topics; may be canceled without input, Zoom)
Zoom link:
https://iso.zoom.us/j/2162331649?pwd=MVdzd1l0ejRPNXNubmVYZnd5bjlyZz09
•	Documents to be discussed in the AhG meeting on 2026-06-02 shall be registered and uploaded before 2026-05-29, 23:59 UTC.
•	Documents to be discussed in the AhG meeting on 2026-07-07 shall be registered and uploaded before 2026-07-03, 23:59 UTC.
•	Documents to be discussed at the 24th WG 6 meeting shall be registered until 2026-07-06, 23:59 UTC and uploaded until 2026-07-08, 23:59 UTC

1. Discuss refinements of use cases and requirements for Gaussian splat coding 
2. Improve and maintain datasets for Gaussian splat coding
3. Discuss possible refinements of common test conditions for Gaussian splat coding
4. Prepare anchors for Gaussian splat coding
5. Investigate new Gaussian splat representation and associated coding technologies
6. Consolidate the software tools for Gaussian splat coding
7. Coordinate the activity on Lightweight GS (1F)
8. Collaborate with AG5 on preparation of subjective evaluation
9. Coordinate development of GS coding technology and its standardization across JVET, WG4, and WG7
10. Study encapsulation/high-level syntax technologies including those based on V-PCC, V3C, and VSEI.
11. Study GS technology that allows cross-encapsulation compatibility and definition of related conformance
12. Coordination of the preparation of the Call for proposal

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)
Joel Jung, joeljung@qti.qualcomm.com (co-chair)
Walt Husak, WJH@dolby.com (co-chair)

Until the next MPEG meeting

mpeg-gsc@lists.aau.at

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

Saturday and Sunday before the next MPEG meeting 9h00 to 18h00

100

Zoom meetings will be announced on the reflector

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. Further study technologies 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, July 9, 2026, 06:00 UTC (online)

1. Solicit further industry participation and 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.

2. Study and solicit contributions for enhancing M75629 with respect to integration and compliance with ISO/IEC 23000-12 Interactive Music Application Format & ISO/IEC 21000-23 Smart Contracts for Media for automated payment of royalties to artists and rights holders in use cases such as remixing, karaoke and collaborative music creation.

3. Enhance collaboration with liaisons (e.g., ISO/TC 307, ITU-T SG21, INATBA, W3C DIDs, 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.

Panos Kudumakis and Mirko Zichichi

Until the 155th MPEG meeting

smart-contracts@lists.aau.at

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

Biweekly calls starting Wed 13 May 2026 alternatively at 13:00 & 15:00 UTC (2 h).

1. Develop and release updated FCTM software, anchors, CD, and CTTC.
2. Conduct Core Experiments.
3. Conduct FCTM experiments (FE1-2 on training and CTTC).
4. Conduct Studies 1 and 2 on profiles and conformance.
5. Investigate additional functionalities for FCM.
6. For FE2, solicit additional test datasets for video promptable segmentation.
7. Coordinate with WG3 Systems on weight access and update mechanism.

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

July 11th 2026, 0900-1800 local time.

50

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 by providing possible AMD1 text corrections or improvements
3.	To contribute to the development and debugging of the conformance bitstreams included in the 2nd edition 23092-5 : Support to Part 6 and Part2 extensions
4.	To finalize the reference software annex to 23092-4 3rd edition Part 6 and Part 2 extensions
5.	To continue experiments for the evaluation of MPEG-G performance
6.	To collect additional test data useful to be used for executing CEs on graph genome and native representation of DNA methylation information.
7.	To build a complete MPEG-G dataset repository on the official MPEG content ftp.
8.	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
9.	Discuss objectives and prepare a workplan for a workshop showcasing MPEG-G standard capabilities open to non-ISO members.

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. Three AHG zoom meeting are scheduled on: 28th of May at 17:00 CET for the discussions on MPEG-G performance. An Ad Hoc virtual meeting on Zoom preceding the next MPEG meeting will take place on Thursday the 9th of July at 14:00 CET to 17:00 CET (12:00 UTC to 15:00 UTC). A face to face AHG meeting will be held on Sunday the 12th at 15 CET (13 UTC) in Geneva.

1.	Extend, perform, and evaluate core experiments
2.	Determine the impact of the profiles on MPEG-G compression performance 
3.	Draft the DIS specification of Part 7 MPEG-G Application formats and profiles
4.	Verify the compatibility and consistency of the Part 7 specification at all stages of the ballot process

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 Thursday 9th of July immediately following the AHG meeting on genomic information representation, but not later than 17:00 CET (15:00 UTC). A face to face AHG meeting will be held on Sunday the 12th of July immediately after the AHG meeting on genomic information representation starting at 15 CET (13 UTC) in Geneva.

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. Study and solicit contributions to improve 23090-10 2nd edition.
2. Discuss open issues in MPEG Git and propose recommended dispositions
3. Solicit contribution to support volumetric media compression technologies

Youngkwon Lim, Lauri Ilola

until the 24th MPEG Systems WG meeting

gen-sys@lists.aau.at

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

- Saturday afternoon before the meeting

15

- Two conference calls
- Details will be announced through the reflector

- 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, Emmanuel Thomas

Until the 24th MPEG Systems WG meeting

gen-sys@lists.aau.at

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

- Two conference calls

- To reach out the industry and collect information about the industry needs and the direction the industry is moving toward

- To organize an workshop with invited speakers from the industry

- To study potential methods for more open development practice 

- To create a material introduce MPEG Systems to the industry to solicit more industry participation 

- To draft a vision for next generation MPEG Systems

- MPEG Git for discussion: https://git.mpeg.expert/MPEG/Systems/next/-/issues

Youngkwon Lim and Convenor support team

until the next WG meeting

gen-sys@lists.aau.at

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

- conference calls (details to be announced through the reflector)

- To develop system architecture to enable generic AI framework
- 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

1. Continue to refine the white paper for Part 28;
2. Continue experiments and tests related to the test data and test methodologies for scene-based media interchange;
3. Continue experiments toward implementing a demonstration of Part 28, i.e., to use the IMS to translate between 3D formats;
4. 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 or in a separate report;
5. Refine the Architecture and implementation aspects of reference software and demonstration for Part 28
6. Continue to study examples of using IMS with other 3D formats, e.g., especially in the creation of the demonstration of Part 28;
7. Continue to solicit industry engagement (e.g., reach out to Metaverse Standards Forum to showcase the demo currently in progress);

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

until the start of MPEG 155

mpeg-render@lists.aau.at

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

Biweekly teleconference calls Meetings will be held by teleconference from 14 (Thursday) May 2026 to 9 (Thursday) July 2026, i.e., every two weeks on Thursday starting on 14 (Thursday) May 2026 or as agreed by the ad hoc group, and one additional meeting on the Sunday prior to the start of the MPEG 154.

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/83710545930?pwd=XTNOkbtiDnAp2UaJ1sxGWO8r7YMcFc.1

Meeting ID: 837 1054 5930
Passcode: 614257

- to study exploration document (WG03N1777) 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

- conference call (to be announced through the reflector)

- To identify formats (asciidoc, markdown, etc.) and tools (metanorma, pandoc, etc.) for generating Word output documents from mark-up language source files
- To develop scripts (e.g. python build scripts), configuration files (e.g. CI config file) and style templates for streamlining output document editing
- To establish logistics for centralising tooling development and maintenance
- To define common procedure for using CI-based document editing (e.g. git tagging, public/private GitLab pages, etc...)
- To define software-first process for reference and conformance software development

Until the next MPEG meeting

gen-sys@lists.aau.at

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

- 1 conference call (Week of June 22nd) (details to be announced through the reflector)

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 (N1662)

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

•	2 Online meetings on Uncompressed video (Doodle poll will be sent on the reflector)
o	Week of May 11th
o	Week of June 15th

1. Maintain and update the Lenslet Video Test Model (LVTM)
2. Conduct core experiments for LVC
3. Study high-level bitstream structure for LVC
4. Study coding tools for LVC that improve compression efficiency in the multiview and lenslet domains
5. Maintain and update the Reference Lenslet Content Converter (RLC)

teratani.mehrdad.v5@f.mail.nagoya-u.ac.jp,Mehrdad Teratani (Nagoya University - Japan)
jin.xin@sz.tsinghua.edu.cn,Xin Jin (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

Online 
15 May 2026, 10:00-12:00 UTC
1 June 2026, 10:00-12:00 UTC
22 June 2026, 10:00-12:00 UTC
3 July 2026, 10:00-12:00 UTC

20

In person
12 July 2026, Geneva, Switzerland

Zoom link to be announced

1. Prepare output documents.
2. Release VCMRS v2.1 and v2.1-study software.
3. Collaborate with the WG3 CFM AhG and WG4 FCM AhG.
4. Conduct Study 1 on conformance.

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/

VCM AhG 1400-1800 local time on 2026-07-12.

60

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 in their own documents. 
4. Progress guidelines on the drafting of WG2 requirements.
5. Improve MPEG website section regarding WG2 mission.
6. Progress 3D Gaussian Splats (3DGS) coding and system requirements.

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

June 17th 3pm-4.30pm CEST

- Update test model to TMAPv5 with new adoptions for AI-PCC
- Update specfication text to WDv5 with new adoptions and general improvement
- Coordinate the AI-PCC EEs including learning-based attribute coding, reproducible coding, etc.
- Refine common test conditions for AI-PCC
- Coordinate the activity of introducing RAHT in AI-PCC
- Coordinate the comparison study with JPEG AI-PCC
- Organise editors meetings
- Organise HLS EE meetings
- Organise AhG meetings before the next MPEG 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

Editing meetings:
  - May 20
  - May 27
  - Jun 17
EE HLS meeting
  - Jul 1
AhG meeting
  - Sunday, Jul 12 (In person, Geneva)

15

1.	Progress the work on MPEG-I Scene Description taking into account the technologies in Amd.2, TuC and EE, 
2.	Progress the standardization process for Avatar Representation formats taking into account the technologies in the draft FDIS and the EE/TUC description 
3.	Dispose issues in internal and public git environment
4.	Collect/coordinate test assets that support the development of the MPEG-I Scene description and Avatar Representation Formats
5.	Address integration of Scene technologies into delivery systems
  a)	work with File Format group for systems integration.
  b)	Identify additional use cases for storing glTF in MP4/HEIF
  c)	Create conformance files to be shared with the FF group and generate sample files, test writers and readers
  d)	Track the RTP payload format for ARF and align with ARF specification 
  e)	Progress implementation guidelines for usage in systems
6.	Work on conformance and reference software based on procedures for SD and ARF
7.	Progress the ARF Registry
8.	Identify collaboration and open issues related to Khronos
  a)	Submit the Second Edition and Amd.1 extensions to Khronos and ensure the adoption in Khronos
  b)	Identify overlapping extensions
  c)	Present the extensions to Khronos
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 for Avatar and Scene description, demos at MPEG#155 and the IEEE paper on ARF. 
10.	Collaborate with WG07 on ARF Animation and Asset Compression

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

Until MPEG#155

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, June 8, 13:45 – 16:00 UTC (15:45 – 17:00 CEST)
  •	Call: Monday June 29, 13:45 – 15:00 UTC (15:45 – 17:00 CEST)
  •	F2f: Sunday, July 12, 15:30 – 18:00 local time Switzerland (CEST)

Note:
  •	MPEG#155, July  13 – May 17, 2026, Geneva, Switzerland
Logistics
  •	Zoom: http://iso.zoom.us/my/stockhammer, Passwd as of MPEG#154
  •	Chairs create issues in gitlab to collect comments.
  •	If MPEG#155 repository is not yet available, use MPEG#154 repository.

40

40

1. Study and collect proposals for advancing the Part 1 AMD 1 (WG03N1796)
2. Study technologies under consideration (TuC; WG03N1766) and defect under investigation (DuI; WG03N1568)
3. Provide a white paper draft describing the 6th ed new features and how they can be used for various applications. 
4. Solicit input and investigate on integration of energy measurement, reporting, and optimization within media streaming architectures in collaboration with 3GPP SA4, SVTA and other industry consortia.
5. 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. Prepare the draft CFP package (use cases, requirements, and submission schedule) for the next MPEG meeting.

Iraj Sodagar, Youngkwon Lim, Mohamad Raad

Until the 20th MPEG Systems WG meeting

gen-sys@lists.aau.at

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

Conf Call : 
    June 2, 16-18 UTC, online
    June 30, 17-19 UTC, online

zoom link: https://iso.zoom.us/my/sodagar
Password can be found on the mpeg calendar.

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
- Run the MPEG survey on AI hardware
2) Technical requirements analysis on NN model handling 
3) Study security related questions when AI is applied to media coding
4) Communicate with SC29/WGs and other external organizations on related aspects
5) Produce a report on reproducibility of AI-based approaches in Media and NN model management.

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

2-weeks notice as needed

1.	Collect representative datasets for avatar communication including animation streams and assets, such as skeletal and facial motion, blend shapes, base avatars based on WG07_N1487
2.	Prepare recording session for MPEG#155 to collect data sets 
3.	Define evaluation metrics, software and quality assessment methodologies for comparing animation and asset compression technologies
4.	Explore mechanisms to map compressed animation streams to ARF, including necessary metadata.
5.	Address open issues collected in the exploration document WG07_N1475
6.	Continue the exploration on Asset Compression based on WG07_N1488
7.	Develop relevant software tools for evaluation
8.	Start preparing a draft CTC

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

Until next MPEG meeting

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/animationcompression/contributions/-/issues

AHG Meetings
•	Call: Monday June 8, 12:30 – 13:45 UTC (14:30 – 15:45 CEST)
•	Call: Monday June 29, 12:30 – 13:45 UTC (14:30 – 15:45 CEST)
•	F2f: Sunday, July 12, 13:30 – 15:00 local time Geneva (CEST)
Note:
•	MPEG#155, July 13 – 17, 2026, Geneva, Switzerland
Logistics
•	Zoom: http://iso.zoom.us/my/stockhammer, Passwd as of MPEG#154
•	Chairs create issues in gitlab to collect comments.
•	If MPEG#155 repository is not yet available, use MPEG#154 repository.

30

Coordinate V-PCC CEs for GSC and conduct the corresponding experiments
Release updated V-PCC for GSC test model (GS4) for core experiments
Release new version of the V-DMC test model (SW and documentation) during the editing period
Solicit contributions on V-DMC conformance
Coordinate the V-DMC subjective verification test and solicit new contributions
Solicit additional data sets for all categories including multiple attributes
Investigate the usage of dynamic mesh compression for static content
Propose corrections for identified issues in the V3C, V-PCC and V-DMC specifications
Coordinate scientific and technical dissemination of V-PCC and V-DMC
Coordinate communications of V-PCC & V-DMC to fairs, exhibitions, workshops, webinars

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).

- several calls during the week prior to the MPEG meeting

The online calendar also contains the information of the meetings logistics (to be ensured by the AhG chairs)

60

1. Coordinate the editing for the G-PCC (Enhanced G-PCC, Solid G-PCC and G-PCC Amd1)
2. Update the G-PCC TMs (SW and documentation) during the editing period
3. Conduct the G-PCC experiments for future enhancements
4. Conduct activities to improve G-PCC Reference SWs
5. Conduct E-G-PCC Conformance bitstream generation
6. Prepare contents for the visual quality assessment of Solid G-PCC
7. Solicit the GS profiles' level limits proposals
8. Coordinate scientific and technical dissemination of G-PCC as well as communications of G-PCC to fairs, exhibitions, workshops, webinars
9. Solicit additional data sets for all categories

Hyejung Hur, Sébastien Lasserre, Yingzhan Xu, Alexandre Zaghetto, Ohji Nakagami

until the next MPEG WG7 meeting

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

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

For G-PCC Amd1: 
- 2026-05-20 - Wed (6:00am-7:30am UTC), online
- 2026-06-17 - Wed (6:00am-7:30am UTC), online
For E-G-PCC (Conformance bitstream generation):
- 2026-05-27 - Wed (6:00am-7:00am UTC), online
- 2026-06-16 - Tue (6:00am-7:00am UTC), online
* Several online sessions before the next MPEG meeting to be announced on the 3DGH reflector

Phase 1:
1.	Prepare version 1 of the WD Amd1
2.	Solicit technical contributions for EE4 regarding the Amd1
3.	Support File Format ISOBMFF and DASH for ISO/IEC 23090 for the conformance part 37
4.	Maintain the conformance & reference software

Phase 2:
5.	Progress the work for implementing the baseline Spatial Haptic Model (SHM) and integration with MPEG-I SD
6.	Solicit contributions for EE1, EE2, EE3 and EE5 for the baseline and advanced models
7.	Prepare version 1 of the WD for ISO/IEC 23090-44
8.	Propose a basis for the reference and conformance software
9.	Discuss timeline for the reference and conformance software

Philippe Guillotel (philippe.guillotel@interdigital.com)
Roope Raisamo (roope.raisamo@nokia.com)
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 May 20 + June 10 + June 24 at 1300 UTC, 
Sunday July 12 pre-MPEG#155 (14h-18h). 

Dial-in details: https://iso.zoom.us/j/8237412547?pwd=Dut0syV8rQGGaj6U0bwFZxdc4WgD7o.1

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)
8. Prepare subjective evaluation
9. Coordinate development of GS technology and its standardization across JVET, WG4, and WG7
10. Study encapsulation/high-level syntax technologies including those based on V-PCC, V3C, and VSEI.
11. Study GS technology that allows cross-encapsulation compatibility and definition of related conformance

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)
Joel Jung, joeljung@qti.qualcomm.com (co-chair)
Walt Husak, WJH@dolby.com (co-chair)

Until the next MPEG meeting

mpeg-gsc@lists.aau.at

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

Zoom meetings will be announced on the reflector

Sunday before the next MPEG meeting 9h00 to 18h