VIDEO ENCODING METHOD FOR ENCODING DIVISION BLOCK, VIDEO DECODING METHOD FOR DECODING DIVISION BLOCK, AND RECORDING MEDIUM FOR IMPLEMENTING THE SAME

摘要

The present invention relates to a method for video decoding, the method comprising receiving a video data sequence of encoded video data, wherein the video data sequence includes a slice and the slice includes coding unit, CU, blocks, wherein the CU blocks are divided into first sub-coding unit, sub-CU, blocks, wherein at least one of the first sub-CU blocks is divided into second sub-CU blocks, and wherein respective sub-CU blocks including the first sub-CU blocks and the second sub-CU blocks comprise square blocks; decoding an encoding mode corresponding to a sub-CU block among the respective sub-CU block; performing either an intra prediction or an inter prediction on the corresponding sub-CU block based on the decoded encoding mode; and using an inverse transform for deriving residual signals of the corresponding sub-CU block, wherein variable sizes of transform kernels are selectively applied to the corresponding sub-CU block, wherein the variable sizes of transform kernels are selected according to a size of the corresponding sub-CU block, and wherein the selected variable sizes of transform kernels are equal to or smaller than the size of the corresponding sub-CU block.