Palette Coding Transpose and Scanning Orders

The patent introduces multiple scanning orders (horizontal, vertical, diagonal, zig-zag, Hilbert) and transpose operations that can be dynamically selected based on the characteristics of the current block. This dynamic adaptation allows the encoder to choose the most efficient scanning pattern for each block, improving coding efficiency while managing complexity through selective application

The patent changes the scanning parameters by introducing different scanning patterns and transpose operations. By varying the scanning order parameter according to block characteristics, the system achieves better compression ratios without permanently increasing complexity, as only the necessary transformations are applied

The patent segments the prediction process into multiple modes (copy left, copy top, copy top-left, column filling) that can be independently selected for different blocks. This segmentation allows the system to apply higher precision prediction only where needed, rather than uniformly across all blocks, thus improving overall coding precision while managing complexity

The patent implements partial application of complex prediction modes by allowing selective use of advanced prediction techniques only for blocks that benefit from them. Not all blocks require all prediction modes, so the system applies prediction complexity selectively, achieving high precision where necessary while maintaining lower complexity elsewhere