Patent ID: 7138999

Claim:
Refinement process of a mesh representative of an object in three dimensions, said mesh being composed of an arrangement of vertices and faces, said process comprising a step to select at least one region of interest on which said refinement of the mesh is made locally, characterised in that said mesh is a triangular mesh composed of an arrangement of vertices and triangular faces, each defined by three references to the vertices that it connects, and with three edges connecting each of said two vertices, in that said region(s) of interest belong(s) to the group comprising: at least one silhouette of said object in three dimensions; faces of said mesh belonging to an animated area of said object, and in that said process further comprises a hybrid subdivision step of at least some of said triangular faces, using a 1-to-3 centre of gravity subdivision operation, in order to divide each of said faces into three triangular faces by adding a vertex.