Patent ID: 11943456
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An image decoding method performed by a decoding apparatus, the method comprising:
receiving residual information from a bitstream;
deriving prediction samples for a current block;
deriving transform coefficients for the current block based on the residual information;
deriving residual samples by applying at least one of LFNST and MTS to the transform coefficients; and
generating a reconstructed picture based on the prediction samples and the residual samples,
wherein the LFNST is performed based on an LFNST kernel related to an LFNST index;
wherein the MTS is performed based on an MTS kernel related to an MTS index;
wherein the LFNST index is parsed before the MTS index, and
wherein the MTS index is signaled based on a value of the LFNST index.