CONTEXT REDUCTION FOR CONTEXT ADAPTIVE BINARY ARITHMETIC CODING

摘要

FIG. 6 is a flowchart illustrating an example video encoding method of the disclosure. The method of FIG. 6 may be implemented by video encoder 20. Video encoder 20 may be configured to determine a first prediction type for a block of video data in a P slice (602), and to represent the first prediction type as a P-slice prediction type syntax element (604). Video encoder 20 may be further configured to determine a second prediction type for a block of video data in a B slice (606), and to represent the second prediction type as a B-slice prediction type syntax element (608). The P-slice prediction type syntax element and the B-slice prediction type syntax element specify a prediction mode and a partition type. The prediction mode may include one of inter- prediction and intra-prediction. The partition type may include one of symmetric partitions and asymmetric partitions. Video encoder 20 may be further configured to determine a P-slice binarization for the P-slice prediction type syntax element (610), and to determine a B-slice binarization for the B-slice prediction type syntax element, wherein the P-slice prediction type syntax element and the B-slice prediction type syntax element are determined using the same binarization logic (612). Video encoder 20 may then encode the video data based on the binarizations of the P-slice prediction type syntax element and the B-slice prediction type syntax element (614).