Patent ID: 7362903
Filing Date: 2008-04-22
Classification: G06T

Abstract:
1. A method for coding a source mesh representing a three-dimensional object or a scene, using a simple mesh having a limited number of facets, each defined by vertices and edges, and coefficients in a base of wavelets, corresponding to local modifications of said simple mesh, and making it possible, at each instant, to determine a function of parametrization of the source mesh, characterized in that it comprises: a step to eliminate an effect of at least one wavelet coefficient verifying at least one criterion of non-essentiality if it is associated with a facet of said simple mesh not belonging to a visible part of said source mesh, so as to give a partial mesh, corresponding to a partial representation of said source mesh; and a step of flattening the source mesh by the addition, to said parametrization function, of an opposite of said wavelet coefficient or coefficients to be eliminated.