JVET-AQ0010 JVET AHG report: Encoding algorithm optimization (AHG10) [K. Andersson, P. de Lagrange, A. Duenas (co-chairs), T. Ikai, T. Solovyev, A. Tourapis (vice-chairs)]

Related contributions

Following contribution was identified relating to AHG10 and summarized in the following section.

JVET-AQ0194: AHG10/AHG12: Clean-Slate NextSoftware2 implementation without future Video Coding Tools

This document proposes a software without new normative tools (Clean-Slate NextSoftware2) of the CfE proposal by Ericsson, Fraunhofer HHI and Nokia (JVET-AN0267). The proponents of this software indicate that in comparison to VTM this software have less restrictions. The BD-rate impact in comparison to VTM-23.14 is:

• All-intra (Y/U/V): 1,66%/-1,82%/-1,21% EncT 54,9% DecT 72,5%
• Random-Access (Y/U/V): 0,69%/-0,51%/-0,04% EncT 48,3% DecT 82,1%
• Low delay B (Y/U/V): 0,34%/2,43%/2,03% EncT 52,8% DecT 80,0%

When also enabling BIM=2 (lambda-based BIM) and GOPBasedRPR on VTM the BD-rate impact is:

• Random-Access (Y/U/V): 2,50%/1,93%/2,44% EncT 50,4% DecT 92,2%
• Low delay B (Y/U/V): 1,80%/0,81%/1,27% EncT 52,9% DecT 81,9%

The document proposes to include the clean-slate version of the NextSoftware2 into the “JVET AHG Enhanced compression beyond VVC capability” repository for evaluation and future consideration.

Recommendations

The AHG recommends that the related input contribution is reviewed, and to further continue the study of encoding algorithm optimizations in JVET.