Patent ID: 11895300
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. An encoding apparatus for an image encoding, the encoding apparatus comprising:
a memory; and
at least one processor connected to the memory, the at least one processor configured to:
derive residual samples for a current block;
generate information related to the residual samples for the current block; and
encode image information including the information related to the residual samples to output a bitstream,
wherein the information related to the residual samples includes information on a multiple transform selection (MTS) index and information on transform coefficients,
wherein the information on the transform coefficients is generated from the residual samples for the current block using a transform kernel set,
wherein the MTS index indicates the transform kernel set among transform kernel set candidates,
wherein at least one bin among bins of a bin string of the MTS index is derived based on a context coding,
wherein the context coding is performed based on a value of a context index increment for the MTS index,
wherein the bin string of the MTS index includes up to 4 bins, and a number of context index increment values allocated to a bin which is derived by the context coding among the 4 bins is one,
wherein a value of the MTS index is represented based on the bin string of the MTS index, and
wherein the value of the MTS index is represented as one of candidates including 0 to 4.