The Joint Collaborative Team on Video Coding (jct-vc) of itu-t wp3/16 and iso/iec jtc 1/ sc 29/ wg 11 held its tenth meeting during 11-20 July 2012 at the City Conference Centre (ccc), a k. a

JCTVC-J0490 Cross-check report for early bypass mode switch of greater1_flag (JCTVC-J0285) [S. H. Kim, A. Segall (Sharp)] [late]
JCTVC-J0304 Context assignment for parallel coefficient level coding [W.-J. Chien, J. Sole, M. Karczewicz (Qualcomm)]

In current HM, the context modeling of the syntax element coeff_abs_level_greater1_flag is dependent on the value of previous coded coeff_abs_level_greater1_flag. Up to 8 coeff_abs_level_greater1_flag might be coded consecutively. This dependency hinders the throughput of the entropy coding and allegedly, it is one bottleneck in current CABAC design. This contribution removes the dependency of previous coded coeff_abs_level_greater1_flag for context modeling.

15-20% of the bitstream could use this flag.

Similar to J0254, slightly simpler and slightly less loss.

Further study (AHG).

JCTVC-J0498 Cross-check report for context assignment for parallel coefficient level coding (JCTVC-J0304) [H. Sasai, K. Terada (Panasonic)] [late]