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41st Meeting: by teleconference, CH, January 2026 2026-01-14 20:06
JVET AHG report: Film grain technologies (AHG13)
Authors: W. Husak Philippe de Lagrange A. Duenas Xuewei Meng Miloš Radosavljević Andrew Segall G. Teniou Alexis M. Tourapis Jens-Rainer Ohm
Abstract
This document summarizes the activities of AHG13: Film grain technologies, between the 40th Meeting (Geneva, CH, 3 October - 12 October 2025) and the 41st Meeting (teleconference, 14-23 January 2026).
Meeting Notes
JVET-AO0013 JVET AHG report: Film grain technologies (AHG13) [W. Husak, P. de Lagrange (co-chairs), A. Duenas, X. Meng, M. Radosavljević, A. Segall, G. Teniou, A. Tourapis (vice-chairs)]

Presented Thursday 15 Jan. 1305-1335 UTC

Discussion in AHG

This period was slow with no meetings or discussions held.

From the previous meetings, the following five items should be in the second edition:

  • Updated Technical Report (TR) text to fix errors and clumsy wording
  • Updated tools for the TR
  • Video test sequences specific to film grain that were added to the draft report was removed after conferring with the other chairs due to the sequences not being located in a permanent location.

Related contributions

Six contributions related to AHG13 were identified.

  • One contribution was the AHG report:
    • JVET-AO0013 JVET AHG report: Film grain technologies (AHG13)
  • Four other contributions were uploaded at the time of the report drafting:
    • JVET-AO0064 AHG9/AHG13: On Film Grain Regions Characteristics SEI Message
    • JVET-AO0102 AHG9: On handling film grain characteristics SEI message and film grain regions characteristics SEI message
    • JVET-AO0103 AHG9: On alpha channel adaptation in film grain regions characteristics SEI message
    • JVET-AO0104 AHG9: On region-based adaptation in film grain regions characteristics SEI message
    • JVET-AO0105 AHG9: Miscellaneous aspects of film grain regions characteristics SEI message

Contributions

There were five relevant contributions registered other than the AHG report.

ARCHIVE :
JVET-AO0013-v1.docx
Decisions
It was commented that it would be desirable to have more support for film grain technology in a future standard. However, the CfP should not include this, as it is mostly about advances in coding tools an algorithms, and known algorithms are mostly about pre and post processing.
Citation