Systems and methods for enhanced semi decoupled 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 blocks;
• when the plurality of blocks includes a first block that satisfies a first block size:
• before a first partitioning threshold, partitioning a luma component of the first block and a chroma component of the first block with a same partitioning;
• beyond the first partitioning threshold, independently partitioning the luma component and the chroma component;
• when the chroma component is determined to share one or more partitioning properties with the luma component at the first partitioning threshold, partitioning, at the first partitioning threshold, the chroma component and the luma component using the one or more partitioning properties, wherein the one or more partitioning properties comprise one or more of a dominant partitioning direction and a number of leaf blocks, and wherein the chroma component is determined to share a same split flag with the luma component at the first partitioning threshold when the luma component meets the one or more partitioning properties;
• and
• when the luma component comprises less than a predefined threshold number of leaf blocks, generating an indicator indicating the split flag for the chroma component, and signaling the indicator in the video bitstream.

A non-transitory computer-readable storage medium storing one or more instructions and a video bitstream that is generated by a video encoding method, the one or more instructions, when executed by a computing system, cause the computing system to perform the video encoding method, the video encoding method comprising:

• receiving video data comprising a plurality of blocks;
• when the plurality of blocks includes a first block that satisfies a first block size:
• before a first partitioning threshold, partitioning a luma component and chroma component of the first block with a same partitioning;
• beyond the first partitioning threshold, independently partitioning the luma component and the chroma component;
• when the chroma component is determined to share one or more partitioning properties with the luma component at the first partitioning threshold, the chroma component and the luma component are to be partitioned at the first partitioning threshold using the one or more partitioning properties, wherein the one or more partitioning properties comprise one or more of a dominant partitioning direction and a number of leaf blocks, and wherein the chroma component is determined to share a same split flag with the luma component at the first partitioning threshold when the luma component meets the one or more partitioning properties;
• and
• when the luma component comprises less than a predefined threshold number of leaf blocks, generating an indicator indicating the split flag for the chroma component, and signaling the indicator in the video bitstream.