3D Face Recognition Using Isogeodesic Stripes

In this paper, we present a novel approach to 3D face matching that shows high effectiveness in distinguishing facial differences between distinct individuals from differences induced by nonneutral expressions within the same individual. The approach takes into account geometrical information of the 3D face and encodes the relevant information into a compact representation in the form of a graph. Nodes of the graph represent equal width isogeodesic facial stripes. Arcs between pairs of nodes are labeled with descriptors, referred to as 3D Weighted Walkthroughs (3DWWs), that capture the mutual relative spatial displacement between all the pairs of points of the corresponding stripes. Face partitioning into isogeodesic stripes and 3DWWs together provide an approximate representation of local morphology of faces that exhibits smooth variations for changes induced by facial expressions. The graphbased representation permits very efficient matching for face recognition and is also suited to...

• Type: Journal
• Year: 2010
• Where: PAMI
• Authors: Stefano Berretti, Alberto Del Bimbo, Pietro Pala
• Keywords: Facial, Intelligent Agents, Isogeodesic Facial Stripes, PAMI 2010, Relative Spatial Displacement