Cross-Component Prediction Gating for Chroma Video Block Coding

The patent applies different processing strategies to different video blocks based on their specific characteristics. The CCP candidate list mode is selectively applied only to chroma blocks that meet specific criteria (such as block size thresholds or neighboring block properties), rather than uniformly to all blocks. This localized application approach improves coding effectiveness for suitable blocks while avoiding the processing overhead of applying CCP to all blocks, thereby resolving the contradiction between coding effectiveness and device complexity.

The patent introduces dynamic decision-making mechanisms where the application of CCP candidate list mode is determined based on real-time analysis of coding information from current and neighboring blocks. The encoder dynamically evaluates conditions such as block size, neighboring block availability, and prediction mode compatibility to decide whether to apply CCP mode. This dynamic adaptation allows the system to optimize coding effectiveness where beneficial while minimizing processing overhead where CCP is not advantageous, resolving the technical contradiction.