Cross-Component Prediction History Tables for Video Coding

The patent implements a feedback mechanism by maintaining a history table that stores previously determined CCP model parameters (α and β values). These historical parameters are fed back into the prediction process for current and subsequent video blocks, allowing the system to leverage past prediction results to improve current coding efficiency.

The patent performs preliminary action by pre-calculating and storing CCP model parameters in a history table during the encoding process. These pre-computed parameters are then readily available for reuse in subsequent predictions, avoiding redundant calculations and improving overall coding efficiency.

The patent applies the discarding and recovering principle by selectively using historical CCP parameters from the history table. Instead of always computing new parameters, the system recovers and reuses previously determined parameters when appropriate, discarding the computational effort of recalculating them while maintaining prediction accuracy.

The patent uses copying by replicating successful CCP model parameters from the history table to multiple video blocks that exhibit similar characteristics. This allows the same proven parameters to be copied and applied across different blocks, maintaining accuracy while reducing computational complexity.