Video Block Conversion Using Temporal BV and IBC-LIC Inheritance

The patent performs preliminary action by determining temporal block vector candidates from collocated pictures before the actual video block conversion. This advance preparation of motion vector candidates from previously decoded temporal references enables more efficient coding without requiring additional complex processing during the main encoding/decoding operation, thus improving coding efficiency while maintaining performance

The patent uses copying by inheriting block vector (BV) and intra block copy with local illumination compensation (IBC-LIC) flags from temporal positions in collocated pictures. Instead of重新 calculating these parameters, the system copies them from previously decoded temporal references, significantly reducing computational complexity and improving coding efficiency while maintaining compression performance

The patent applies copying by directly inheriting BV and IBC-LIC flags from temporal positions without performing complex calculations. The temporal block vector candidate is obtained by copying motion information from the collocated picture at the corresponding position, which simplifies the processing complexity while improving coding effectiveness through better motion prediction

The patent implements self-service by using the decoded video data from temporal pictures to automatically generate temporal BV candidates. The system serves itself by utilizing its own previously decoded output (collocated pictures) as input for generating prediction candidates, eliminating the need for external complex processing or additional reference data