Patent ID: 11917201
Assignee: SONY GROUP CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The information processing apparatus according to claim 4, wherein
the circuitry is further configured to
extract the projection image from a frame image by using each of the occupancyMap not subjected to the filtering process and the occupancyMap subjected to the filtering process;
convert two-dimensional coordinates of each point included in the projection image that is extracted into three-dimensional coordinates;
by comparing the three-dimensional coordinates of each point included in the projection image extracted using the occupancyMap not subjected to the filtering process, with the three-dimensional coordinates of each point included in the projection image extracted using the occupancyMap subjected to the filtering process, detect the local area in which a value indicating presence of the projection image is set in the occupancyMap not subjected to the filtering process while a value indicating absence of the projection image is set in the occupancyMap subjected to the filtering process; and
determine whether each of the points is the disappeared point for each point of the local area that is detected.