Patent ID: 11882286
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for decoding a video signal, comprising:
performing entropy decoding and inverse quantization on the video signal to obtain coefficients of a current block;
parsing a first transform skip flag specifying whether a transform is applied to the coefficients of a luma component based on a size of the current block being smaller than a first predetermined size;
parsing a second transform skip flag and a third transform skip flag based on the size of the current block being smaller than the first predetermined size, wherein the second transform skip flag specifies whether a transform is applied to coefficients of a first chroma component and the third transform skip flag specifies whether a transform is applied to coefficients of a second chroma component;
obtaining an index specifying one of a plurality of transform kernel combinations to be applied to the coefficients of the luma component based on the size of the current block being smaller than a predetermined second size and the first transform skip flag being 0, each transform kernel combination comprising a transform kernel in a horizontal direction and a transform kernel in a vertical direction; and
performing an inverse transform on the coefficients of the luma component based on the transform kernel combination specified by the index to generate residual samples of the current block.