Patent ID: 11943434
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The image decoding method of claim 1, wherein an x-th specific top position among the specific top positions and an y-th specific left position among the specific left positions are derived based on an equation as follows:

Idx_w=width−1−(x*width)/subsample_num_width

Idx_h=height−1−(y*height)/subsample_num_height

where idx_w represents an x-coordinate of the x-th specific top position among the specific top positions, width represents the width of the current chroma block, subsample_num_width represents the number of the specific top neighboring chroma samples, idx_h represents an y-coordinate of the y-th specific left position among the specific left positions, height represents the height of the current chroma block, and subsample_num_height represents the number of the specific left neighboring chroma samples.