| JCTVC-J0323 AHG5/AHG6: Cross check report of reducing context models for SAO merge syntax (JCTVC-J0041) [I. S. Chong, M. Karczewicz (Qualcomm)] [late]
Supportive comment from cross-checker.
JCTVC-J0178 AHG5: On SAO syntax elements coding [C. Rosewarne, V. Kolesnikov, M. Maeda (Canon)]
This contribution reduces 2 context models, since merge left flag is encoded using 1 ctx instead 3. This part was supported by experts. No action as 0041 does more.
SAO type coding is modified as well: first bin (SAO on/off flag) is encoded with ctx, remainder (pure SAO type) is encoded using fixed length (3 bins) code and by-pass. This part should be re-discussed with SAO type contribution
It is additionally proposed to concatenate the remaining type index flags for all three components (which is claimed to be useful in case of using combined merge flags).
This is asserted not to be a significant benefit in terms of throughput but would make the standard text more complicated. No action.
JCTVC-J0406 Cross-check of SAO syntax elements coding (JCTVC-J0178) [J. Sole (Qualcomm)] [late]
Comment: The method of separation of cxt coded and bypassed bins need to be re-discussed together with other contribution
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