Partial access metadata for video-based point cloud compression data

A method for point cloud decoding, the method comprising:

• receiving, using a communication interface, a compressed bitstream and metadata related to the compressed bitstream;
• identifying, using a processor operably coupled to the communication interface, region information in the metadata that indicates a region of a point cloud based on a user perspective;
• determine whether an object corresponding to the region of the point cloud is visible from the user perspective based on a supplemental enhancement information (SEI) message included in the compressed bitstream;
• in response to a determination that the object is visible from the user perspective:
• locating a track of the compressed bitstream that corresponds to the region information;
• identifying, in the track, the object;
• and
• decoding the compressed bitstream to display the object from the user perspective.

A non-transitory computer readable medium embodying a computer program, the computer program comprising computer readable program code that, when executed by a processor of an electronic device, causes the electronic device to:

• receive a compressed bitstream and metadata related to the compressed bitstream;
• identify, in the metadata, region information that indicates a region of a point cloud based on a user perspective;
• determine whether an object corresponding to the region of the point cloud is visible from the user perspective based on a supplemental enhancement information (SEI) message included in the compressed bitstream;
• in response to a determination that the object is visible from the user perspective:
• locate a track of the compressed bitstream that corresponds to the region information;
• identify, in the track, the object;
• and
• decode the compressed bitstream to display the object from the user perspective.