Patent ID: 11968364
Assignee: KT CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A non-transitory computer readable medium for storing compressed data associated with an image signal,
the compressed data being generated by an image encoding method,
the image encoding method comprising:
determining whether to split a first coding block or not
in response to a determination of split the first coding block, split the first coding block into three second coding blocks by using two vertical partitioning lines or two horizontal partitioning lines; and
split a second coding block, which is one of the three second coding blocks, into two third coding blocks by using a single vertical partitioning line or a single horizontal partitioning line,
wherein in response to the second coding block being middle one of the three second coding blocks, only a partitioning line, perpendicular to partitioning lines used to split the first coding block, is allowed to the second coding block,
wherein the method further comprises:
determining a division type of a third coding block, which is one of the two third coding blocks, from a plurality of division type candidates,
wherein the plurality of division type candidates includes a first candidate of a non-division type, a second candidate of dividing a coding block into two transform blocks, and a third candidate of dividing a coding block into four transform blocks,
wherein a transform block is determined by dividing the coding block based on the division type, and
wherein a residual coefficient of the transform block is obtained by performing transform on the transform block.