Deblocking Filter Boundary Strength Control for Video Compression

The patent applies different boundary strength values (bS0, bS1, bS2) to different regions and block types within the deblocking filtering process. Intra-coded blocks receive different treatment than inter-coded blocks, and different boundary conditions trigger different filtering intensities, allowing localized optimization that improves image quality without uniformly increasing complexity across the entire processing system.

The patent introduces multiple boundary strength parameters (bS0, bS1, bS2) that change based on block type and boundary conditions. By dynamically adjusting these parameters rather than using a fixed filtering approach, the system achieves better artifact removal while maintaining manageable complexity through parameter-based control rather than structural complexity.

The patent segments the video data into different block types (intra-coded blocks, inter-coded blocks) and applies appropriate boundary strength values to each segment. This segmentation allows filtering accuracy to be optimized for each block type while avoiding the need to compute multiple complex parameters for every single block, thereby controlling overall computational complexity.

The patent applies the full multi-parameter boundary strength approach only where necessary (at block boundaries requiring deblocking filtering), rather than uniformly across all blocks. This partial application of the complex filtering logic reduces unnecessary computational overhead while maintaining filtering accuracy where it is most needed.