JCTVC-M0187 Non-SCE4: Cross-check for JCTVC-M0253 simplification of chroma enhancement for inter layer reference picture generation [J. Dong, Y. Ye (InterDigital)]
JCTVC-M0271 Non-SCE4.2.2: 6-Tap Adaptive Resampling Filter [W. Pu, J. Chen, X. Li, M. Karczewicz (Qualcomm)]
This proposal reports the performance of 5-tap (phase 0) and 6-tap (other phases) adaptive luma re-sampling filters for SHVC. The filtering and signalling methods in this proposal are the same as SCE 4.2.2, except that SCE 4.2.2 uses 2D separable 7-tap (phase 0) and 8-tap resampling filters (other phases) for luma component. Compared with SHM 1.0 TextureRL anchor, average BD-rate reduction is 0.3% (spatial scalability) and 1.9% (SNR scalability). Compared with SHM1.0 RefIdx anchor, average BD-rate reduction is reportedly 0.3% (spatial scalability) and 1.9% (SNR scalability).
Supplements SCE 4.2.2 information by showing that a shorter adaptive upsampling filter can have about the same performance as the tested one. However, the worst case is not improved. The contribution was noted.
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