Abstract: Provided is a method of compressing an occupancy map of a three-dimensional (3D) point cloud, and more specifically, a method of compressing an occupancy map of a point cloud in which an occupancy map image of a point cloud existing in a 3D space is compressed based on a compression quality or a patch-by-patch inspection method of the occupancy map image so that compression distortion is minimized when reconstructing the compressed occupancy map image so as to remarkably improve the quality of a reconstructed occupancy map image.

Abstract: Systems and methods for linking real world activity with a location-based parallel reality experience are provided. In particular, a game server hosting a parallel reality experience receives position data from a client device of a user and determines whether the client device is at a real world landmark associated with a geographic area. Responsive to determining that the client device is at the real world landmark, the game server cause the client device to present content incentivizing the user to travel to a real world location in the geographic area. The game server determines whether the client device is within proximity of the real world location based on sensor data. Responsive to determining that the client device is within proximity of the real world location, the game server causes the client device to display the virtual element at a virtual world location corresponding to the real world location.