JCTVC-M0186 Non-SCE4: cross-check for JCTVC-M0089 simplified design of cross-color inter-layer filter (test 4.2.4) [J. Dong, Y. Ye (InterDigital)] [miss]
JCTVC-M0114 Non-SCE4: On Interlayer SAO in SHVC [G. Laroche, P. Onno, J. Taquet, C. Gisquet, E. François (Canon)]
This contribution proposes a simplification of the inter-layer SAO contribution initially proposed in JCTVC-L0234 (SCE 4.2.1, M0265). The simplification consists in applying the high-pass pre-filtering step of JCTVC-L0234 directly at the time of the determination of the edge index in the SAO process. An average BD BR gain of −0.8% (Y), −0.6% (U), −0.6% (V) over the SHM1.0 is reported for the Intra_BL approach. An average BD BR gain of −0.8% (Y), −0.7% (U), −0.6% (V) over the SHM 1.0 is reported for the RefIdx approach. In terms of complexity, it is reported that the SHM1.0 decoder runtime is reduced from 193% in SCE 4.2.1 (JCTVC-L0234) to 108% in this contribution.
The compression performance relative to SCE 4.2.1 / M0265 is asserted to be approximately unaffected.
Further study of this in a CE is planned (without further work on the M0265 approach).
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