Adaptive Image Parameter Coding for Lower Video Signaling Cost

The patent applies dynamics by making the coding method adaptive rather than fixed. The encoder selects between different coding methods (first or second method) based on the actual values of neighboring blocks, allowing the coding process to dynamically adjust to the image content. This resolves the contradiction by maintaining simplicity through a clear selection rule while improving compression efficiency through content-adaptive coding.

The patent changes the parameter of coding method selection based on image content parameters (neighboring block values). By monitoring whether neighboring blocks use default prediction modes or have specific intra prediction mode values, the system switches between different coding approaches. This allows the same parameter (intra prediction mode) to be coded differently depending on local image characteristics, improving compression without complicating the overall process.

The patent segments the coding process into distinct methods: a first coding method for when neighboring blocks use default prediction modes, and a second coding method for other cases. Each segment has its own simplified coding rules. This segmentation reduces overall complexity by avoiding a single complex decision tree, while still enabling shorter code words for probable values within each segment.

The patent uses lightweight, simple coding methods that are easy to implement and discard when conditions change. Rather than maintaining a single complex coding structure, the system switches between simple, disposable coding approaches based on content, reducing both signaling cost and implementation complexity.