Method and Apparatus of Improved Intra Luma Prediction Mode Coding

摘要

A method of video coding using intra prediction for a block of video data is disclosed. The intra prediction modes are ranked according to a priority order associated with the block size. One or more tables are used, where the tables ranks the intra prediction modes according to a first priority order for the block having a first block size and ranks the intra prediction modes according to a second priority order for the block having a second block size. Two or more neighboring intra prediction modes corresponding to two or more neighboring blocks are received, where each neighboring block has a neighboring block size corresponding to the first block size or the second block size. A highest-priority mode among said two or more neighboring intra prediction modes is selected as the most probable mode. The current mode is then encoded or decoded using the most probable mode as a predictor.

主权项

1. A method of video coding using intra prediction for a block of video data, the method comprising:
determining one or more tables ranking first intra prediction modes according to a first priority order for the block having a first block size and second intra prediction modes according to a second priority order for the block having a second block size; receiving a current intra prediction mode corresponding to a current block; receiving two or more neighboring intra prediction modes corresponding to two or more neighboring blocks, wherein each neighboring block has a neighboring block size corresponding to the first block size or the second block size; determining a mode priority for each of said two or more neighboring intra prediction modes according to each neighboring intra prediction mode and each neighboring block size of said two or more neighboring blocks using said one or more tables; determining a highest-priority mode among said two or more neighboring intra prediction modes as a most probable mode; and encoding the current mode using the most probable mode as a predictor.