Patent ID: 11954891
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. A method of compressing an occupancy map of a three-dimensional (3D) point cloud, the method comprising the steps of:
(a) generating an occupancy map image using occupancy map information, compressing the occupancy map image using a video codec, and decompressing the compressed occupancy map image; and
(b) resetting a thresholdLossyOM parameter to be decreased to a preset value in consideration of at least one of a compression quality or a patch-by-patch inspection result of the occupancy map image decompressed in the step (a),
wherein the step (b) includes, in consideration of the patch-by-patch inspection result, inspecting whether an occupied pixel exists for each patch of the occupancy map image decompressed in the step (a) and, in response to existence of a patch having no occupied pixels, resetting the thresholdLossyOM parameter to be decreased to a preset value.