JVET-G0090 Unified adaptive search range setting in JEM and HM [T. Ikai, Y. Yasugi (Sharp)]

This contribution is a follow up contribution of JVET-F0044 and JCTVC-AA0043. It proposes the common adaptive search range of 96-384 for RA aiming to unify the current JEM’s 256-256 search range and HM’s 64_256 adaptive search range.

In JEM 6.0 RA condition, the suggested range of 96_384 shows 0.05 % bdrate gain with 2 % encoding time reduction.

Recommend JCT-VC to use the range 96_384 as CTC for HM. HM Anchors should follow CTC. (was adopted in JCT-VC)

Decision (CTC): Change search range in JEM to 96_384