JVET-M0197 AHG14: Software for ultra low-latency encoding [K. Kazui (Fujitsu)]

Presented Thursday 17 January 1850 (chaired by F. Bossen).

This contribution proposes software modifications for integrating encoder-only progressive intra refresh in the VTM model, in accordance with the mandates of AHG14 “Progressive intra refresh”. The proposed software modifications are the use of flexible tile partitioning in JVET-M0066 and the methods described in JVET-L0079 “AHG14: Study of methods for progressive intra refresh”.

Version 2 contains two additional test results. The first one is the comparison with low-delay B. The second one is the comparison with the proposal with normative changes.

Each CTU row is partitioned into 2 tiles, a “refreshed tile” and a “not-refreshed tile”.

Significant overhead was reported: +29% for LDB (RA results were incomplete).

The contribution suggested some normative changes to reduce the overhead.

This proposes to use the provided software for future AHG14 experiments.

No action was taken on this except to encourage AHG14 to consider / decide on the desirability and use of the proposed software. It could be uploaded to an AHG14 space on Gitlab.