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Ad hoc groups

During MPEG meetings, each MPEG sub working group creates ad hoc groups to progress the work on specific topics within a smaller group until the next MPEG meeting. The work is usually progressed by email and conference calls.

Ad hoc groups of MPEG 151

NameAhG on Carriage of Green Metadata
GroupWG 3 - MPEG Systems
Mandates
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.	continue to consolidate and improve of ISO/IEC 23001-10 AMD2
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
Chair(s)
Olivier Le Meur, Christian Herglotz
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 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 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
Chair(s)
werner.bailer@joanneum.at,Werner Bailer (chair)
smchun@insignal.co.kr,Sungmoon Chun (vice-chair)
Duration
until next MPEG meeting
Reflector(s)
mpeg-nnr@lists.aau.at
Subscribe
Email to: mpeg-nnr-join@lists.aau.at
Meeting
Thursday, October 2, 2025, 06:00 UTC (online)
Room Size

NameAhG on Font Format
GroupWG 3 - MPEG Systems
Mandates
1. Explore and propose potential future changes and updates to the text of OFF 5th edition.
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

Ad hoc groups from other meetings:
MPEG 151, MPEG 150, MPEG 149, 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: