Apple Inc.
POINT CLOUD GEOMETRY COMPRESSION USING OCTREES AND BINARY ARITHMETIC ENCODING WITH ADAPTIVE LOOK-UP TABLES

Abstract:

An encoder is configured to compress point cloud geometry information using an octree geometric compression technique that utilizes a binary arithmetic encoder, a look-ahead table, a cache, and a context selection process, wherein encoding contexts are selected based, at least in part, on neighborhood configurations. In a similar manner, a decoder is configured to decode compressed point cloud geometry information utilizing a binary arithmetic encoder, a look-ahead table, a cache, and a context selection process.