Systems and methods for wedge-based prediction mode signaling

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, including a first block;
• obtaining, from the video data, a syntax element value indicating a wedge mode index corresponding to a first partition mode from a plurality of partition modes for the first block, wherein the wedge mode index is greater than 16;
• determining that the first partition mode is associated with a compound wedge-based prediction for the first block;
• partitioning the first block into a first section and a second section in accordance with the first partition mode and the wedge mode index;
• and
• decoding the first section in accordance with a first predictor and decoding the second section in accordance with a second predictor.

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:

• receiving video data comprising a plurality of blocks, including a first block;
• obtaining, from the video data, a syntax element value indicating a wedge mode index corresponding to a first partition mode from a plurality of partition modes for the first block, wherein the wedge mode index is greater than 16;
• determining that the first partition mode is associated with a compound wedge-based prediction for the first block;
• partitioning the first block into a first section and a second section in accordance with the first partition mode and the wedge mode index;
• and
• decoding the first section in accordance with a first predictor and decoding the second section in accordance with a second predictor.