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29th Meeting: by teleconference, DE, January 2023 2023-01-04 17:54
AHG9/AHG15: On the NNPFC SEI message for machine analysis
Authors: Miska M. Hannuksela Nokia Francesco Cricri Nokia J. I. Ahonen Nokia Honglei Zhang Nokia
Abstract
The contribution reviews some earlier works on neural-network post-filtering targeted at improving machine analysis precision and concludes, based on the earlier works, that post-filters targeted at machine analysis can have different purposes (i.e., nnpfc_purpose values) in the neural-network post-filter characteristics (NNPFC) SEI message.
Meeting Notes
JVET-AC0076 AHG9/AHG15: On the NNPFC SEI message for machine analysis [M. M. Hannuksela, F. Cricri, J. I. Ahonen, H. Zhang (Nokia)]

This was reviewed in the BoG reported in JVET-AC0324.

JVET-AC0076 AHG9/AHG15: On the NNPFC SEI message for machine analysis [M. M. Hannuksela, F. Cricri, J. I. Ahonen, H. Zhang (Nokia)]

The contribution reviews some earlier works on neural-network post-filtering targeted at improving machine analysis precision and concludes, based on the earlier works, that post-filters targeted at machine analysis can have different purposes (i.e., nnpfc_purpose values) in the neural-network post-filter characteristics (NNPFC) SEI message.

The contribution proposes to add the target usage of a post-processing filter in the NNPFC SEI message to indicate whether the filtered video is suitable for any usage, is intended for user viewing, or is expected to be provided as input to machine analysis.

The proposed target usage is intended to be used for selecting which post-filters are applied as follows:

  • When a decoding device displays the video for user viewing rather than performs machine analysis, any post-processing filter that has only machine analysis as the target usage is suggested to be omitted.
  • When a decoding device performs machine analysis rather than displays the video, any post-processing filter that has only user viewing as the target usage is suggested to be omitted.
ARCHIVE :
JVET-AC0076-v1.docx
Decisions
This was reviewed in the BoG reported in JVET-AC0324.
When a decoding device performs machine analysis rather than displays the video, any post-processing filter that has only user viewing as the target usage is suggested to be omitted.
Citation