Apparatus and method for coding a three dimensional mesh

摘要

Disclosed is a three-dimensional (3D) mesh compression apparatus and method. The 3D mesh compression apparatus may generate a base mesh through a mesh simplification, may separately compress the base mesh and vertices eliminated by the simplification, may construct a covariance matrix based on a topological distance between the eliminated vertices, and may compress 3D mesh data based on the covariance matrix.

主权项

1. An apparatus for compressing a three-dimensional (3D) mesh, the apparatus comprising:
a mesh simplifying unit to generate a base mesh by simplifying an inputted 3D mesh, thereby eliminating at least one vertex; a base mesh coding unit to code the base mesh; a vertex coding unit to code, based on a covariance matrix, the at least one vertex eliminated by the simplification; and an entropy coding unit to entropy-code the coded base mesh and the coded at least one vertex into a bit stream by performing entropy-coding.