Chroma Intra Prediction Mode Derivation for Video Coding Efficiency

The patent applies preliminary action by deriving the intra prediction mode for chroma components based on previously decoded luma blocks and chroma blocks before actual prediction occurs. The system pre-calculates the prediction mode using neighboring blocks' prediction modes and chroma block information, so that when prediction is needed, the mode is already determined, improving efficiency without significant complexity increase.

The patent implements self-service by having the chroma prediction mode derivation process utilize its own outputs (chroma block prediction modes) as inputs for further derivations. The system uses the derived chroma prediction modes to predict remaining chroma blocks, creating a self-reinforcing efficient prediction loop that improves coding efficiency while maintaining manageable complexity.

The patent applies preliminary action by pre-determining the intra prediction mode for chroma components using previously decoded neighboring blocks before the actual prediction process. This allows the system to use available information from already processed blocks to derive prediction modes in advance, improving accuracy while minimizing the time required during actual prediction execution.

The patent implements skipping by bypassing complex prediction mode selection processes for chroma components by directly deriving the mode from neighboring block information rather than exhaustively searching all possible modes. This rushing through the prediction mode derivation using simplified rules based on neighboring blocks' modes significantly reduces processing time while maintaining high prediction accuracy.