Patent ID: 11954890
Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 6:
7. A method for fast refining of patch segment for a video-based point cloud compression (V-PCC) encoder, the method comprising:
segmenting, at a processor, a coordinate space of a point cloud into grid units;
searching, at the processor, an edge cube containing one or more points among the cubes segmented into grid units and containing a segment boundary;
searching, at the processor, an edge surrounding cube containing one or more points within a predetermined range from the edge cube;
calculating, at the processor, smooth scores for all the edge surrounding cubes and all the edge cubes; and
obtaining, at the processor, a normal score based on the calculated smooth scores and updating, at the processor, a projection plane index of each point in the edge cube and the edge surrounding cube using the normal score,
wherein searching the edge cube comprises:
searching a direct edge cube containing two or more points; and
searching an indirect edge cube located around the edge cube and containing one or more points.