Sony Group Corporation
COMPLEXITY REDUCTION OF SIGNIFICANCE MAP CODING

Abstract:

The complexity of coding a significant_coeff_flag in video coding such as High Efficiency Video Coding (HEVC) is able to be reduced using the same mapping to select luma and chroma contexts for the coding of 4.times.4 significant maps. As a result, a 15 element lookup table and multiple branches are able to be removed to select the context index, and WD text is also simplified.