JVET-AP0233 Non-EE2: Improvements on IBC-AMVP candidate list construction [H. Jeong, B. Jeon (SKKU)]

This contribution proposes a TM-cost-based pre-filtering stage for non-adjacent and history candidates in regular IBC-AMVP candidate list construction. When no adjacent candidate is listed, up to two non-adjacent candidates with the lowest TM costs are added if such candidates are available; when adjacent candidate is already enlisted, only one non-adjacent candidate with the lowest TM cost is added. For the history candidates, only the candidate with the lowest TM cost is added. The subsequent clustering process remains unchanged. The proposed method achieves BDBR gain compared to ECM-19.1 as follows:

Class F: -0.03% (Y) / -0.13% (Cb) / -0.09% (Cr), Enc: 99.5%, Dec: 99.2%.

No gain, and increase of encoding time in class TGM. Also in class F, two sequences have loss.

Not relevant to be considered.