Patent ID: 11956418
Assignee: KT CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A non-transitory computer-readable medium for storing data associated with a video signal, comprising:
a data stream stored in the non-transitory computer-readable medium, the data stream comprising encoding information generated by encoding a residual block for a chroma component of a current block,
wherein the residual block is a difference between an original block for the chroma component of the current block and a prediction block for the chroma component of the current block,
wherein the prediction block results from performing intra prediction on the current block by using one or more reference sample lines of the current block,
wherein a number of the one or more reference sample lines available for the intra prediction for the chroma component of the current block is adaptively determined based on a position of the current block in a coding tree unit (CTU),
wherein, in response to a case where the current block is located on the boundary of the CTU, the intra prediction for the chroma component of the current block is performed using one reference sample line, and
wherein, in response to a case where the current block is not located on the boundary of the CTU, the intra prediction for the chroma component of the current block is performed using three reference sample lines.