INTRA-PREDICTION COMPLEXITY REDUCTION USING A REDUCED NUMBER OF ANGULAR MODES AND SUBSEQUENT REFINEMENT

摘要

Techniques related to selecting intra-prediction angular modes for video encoding are discussed. Such techniques may include evaluating, for a coding unit, encoding costs for only a subset of available intra-prediction angular modes, selecting one or more of the subset as candidate modes based on lowest encoding costs, evaluating encoding costs for neighbors of the selected candidate modes, and providing final candidate modes based on the evaluated encoding costs.