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Non-EE2: Improvements on multi-pass DMVR
Abstract
In this contribution, it is proposed to extend the current multi-pass DMVR in ECM by adding a new pass where 4x4 subblock level BDOF based motion refinement is applied. It is reported that the proposed method achieves {-0.%(Y), -0.%(U), -0.%(V)} BD-rate performance on top of ECM-8.0.
JVET-AD0176 Non-EE2: Improvements on multi-pass DMVR [J. Chen, R.-L. Liao, X. Li, Y. Ye (Alibaba)]
In this contribution, it is proposed to extend the current multi-pass DMVR in ECM by adding a new pass (3rd pass) where 4x4 subblock level BDOF based motion refinement is applied. It is reported that the proposed method achieves {-0.14%(Y), -0.22%(U), -0.25%(V)} BD-rate performance on top of ECM-8.0.
Similar concept as in JVET-AD0196.
It is additionally reported that the gain when combining the proposal with EE2-2.6 is 0.31% in RA (with ECM8 anchor). Benefit is slightly smaller than for JVET-AD0196 which has some additional elements.
It was agreed to investigate this in an EE together with JVET-AD0196.
Decisions
It was agreed to investigate this in an EE together with JVET-AD0196.
Citation