Extended block partition types for video coding

An electronic apparatus comprising:

• a video coder circuit configured to perform operations comprising:
• receiving data for a block of pixels to be encoded or decoded as a current block of a current picture of a video;
• deriving a partitioning structure for splitting the current block by identifying a partitioning position having a lowest cost;
• splitting the current block into first and second partitions according to the identified partitioning position, wherein the first partition is a first rectangular region entirely within the current block and the second partition is a remainder region of the current block that surrounds the first rectangular region on four sides;
• and
• encoding or decoding the first and second partitions of the current block.

A video decoding method comprising:

• receiving data for a block of pixels to be decoded as a current block of a current picture of a video;
• deriving a partitioning structure for splitting the current block by identifying a partitioning position having a lowest cost;
• splitting the current block into first and second partitions according to the identified partitioning position, wherein the first partition is a first rectangular region entirely within the current block and the second partition is a remainder region of the current block that surrounds the first rectangular region on four sides;
• and
• reconstructing the first and second partitions of the current block.

A video encoding method comprising:

• receiving data for a block of pixels to be encoded as a current block of a current picture of a video;
• deriving a partitioning structure for splitting the current block by identifying a partitioning position having a lowest cost;
• splitting the current block into first and second partitions according to the identified partitioning position, wherein the first partition is a first rectangular region entirely within the current block and the second partition is a remainder region of the current block that surrounds the first rectangular region on four sides;
• and
• encoding the first and second partitions of the current block.