Patent ID: 11956549
Assignee: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 7:
8. A non-transitory computer-readable recording medium storing a bitstream that is generated by an image encoding method performed by an image encoding apparatus, the image encoding method comprising:
determining a block division type of a current block in an image from a candidate group pre-defined in the image encoding apparatus, index information for specifying the determined block division type of the current block being encoded into a bitstream;
dividing the current block into a plurality of sub-blocks based on the determined block division type; and
encoding each of the sub-blocks to encode the current block,
wherein the current block is encoded by obtaining a residual block for the current block, performing at least one of quantization or transformation for the residual block to generate residual information and encoding the residual information into the bitstream,
wherein the candidate group includes at least one of a non-division, a first quad-division, a second quad-division, a binary-division or a triple-division, and
wherein the first quad-division divides one coding block into four coding blocks based one horizontal line and one vertical line, the second quad-division divides one coding block into four coding blocks based on three horizontal lines or three vertical lines, the binary-division divides one coding block into two coding blocks, and the triple-division divides one coding block into three coding blocks.