Equipment and methods for encoding and decoding point cloud data

Abstract

The invention relates to a device for encoding point cloud data, which includes: memory for storing point cloud data; and one or more processors coupled to the memory and implemented in a circuit, one or more processors configured to: determine the horizontal plane position of a node, wherein the horizontal plane position indicates the position of a single plane perpendicular to the first axis of the coordinate system, wherein the first axis is the x-axis; The invention identifies, from multiple contexts including 8 contexts, the context for the horizontal plane position of the node; and performs arithmetic encoding on the syntactic element indicating the horizontal plane position using the identified context. The invention also addresses a point cloud data decoding device and a method for encoding and decoding point cloud data.