JVET-AQ0139 AHG9: Historical Information SEI message [J. Pardo, T. Solovyev, E. Alshina (Huawei), X. Xu, S. Liu (Tencent)]
Chaired by S. Deshpande during 12:15-12:45 on 12 July 2026.
Following CfE and CfP sequences selection we can see that user generated content (UGC) plays a bigger role into the elaboration of the next video codec standard. It is proposed that UGC sequences characteristics should be also considered in the VSEI tracks. One of these characteristics that is proposed is to add transcoding information
The showcase had provided the information about Resolution and PSNR only to the model.
It was asked why the PSNR drops when bitrate is increased between data point 2 and 3 in the slides.
Persistence is not title (bitstream) level, but is RAP period/ CLVS level.
TVD dataset was used for the tests (it included 86 videos).
It was also suggested to consider sharing the model or code which maximizes PSNR based on this historical information may be beneficial to study the merit of this approach.
It was commented that the answers to the questions/ comments (as we all those under JVET-AQ0179) need to be provided to convince the benefit of the history information.
Further study