Systems and methods for improved recursive intra region partitioning

A computing system, comprising:

• control circuitry;
• memory;
• and
• one or more sets of instructions stored in the memory and configured for execution by the control circuitry, the one or more sets of instructions comprising instructions for:
• receiving video data comprising a plurality of coding blocks;
• identifying a coding region that comprises two or more coding blocks of the plurality of coding blocks, wherein each coding block in the coding region is to be encoded in an intra prediction mode;
• and
• encoding the two or more coding blocks of the coding region into a video bitstream by applying a first partitioning for luma blocks in the coding region and applying a second partitioning for chroma blocks in the coding region, wherein the second partitioning is different from the first partitioning.

A non-transitory computer-readable storage medium storing one or more sets of instructions configured for execution by a computing device having control circuitry and memory, the one or more sets of instructions comprising instructions for:

• obtaining a source video sequence that comprises a plurality of frames;
• and
• performing a conversion between the source video sequence and a video bitstream of visual media data, wherein the video bitstream comprises:
• a plurality of encoded blocks corresponding to the plurality of frames;
• and
• an indicator indicating a coding region of a frame of the plurality of frames, wherein the coding region consists of blocks encoded in an intra prediction mode;
• wherein luma blocks encoded in the video bitstream are partitioned according to a first partition type, and
• wherein chroma blocks encoded in the video bitstream are partitioned according to a second partition type that is different from the first partition type.