Title :
A robust and isotropic curved surface representation for 3D faces description
Author :
Jribi, Majdi ; Ghorbel, Faouzi
Author_Institution :
Grift Res. Group, La Manouba Univ., La Manouba, Tunisia
Abstract :
A novel curved surface representation which is relatively invariant under the transformations of the 3D motion group is introduced in this paper. It is computed from the superposition of the two geodesic potentials generated from a given couple of surface points. By considering a levels set of such geodesic potentials, finite invariant points are obtained. Two numerical methods are implemented and compared in order to find an efficient approximation of this representation in the sense of the Hausdorff shape distance. Its robustness under an imprecision of reference points positions is studied. Experimentations are performed on the 3D real faces of the database Bosphorus.
Keywords :
face recognition; image motion analysis; image representation; numerical analysis; visual databases; 3D face description; 3D motion group transformation; 3D real faces; Bosphorus database; Hausdorff shape distance; finite invariant points; geodesic potential superposition; isotropic curved surface representation; numerical methods; reference point position imprecision; robust curved surface representation; surface points; Approximation methods; Databases; Level set; Robustness; Shape; Transforms; Vectors;
Conference_Titel :
Automatic Face and Gesture Recognition (FG), 2013 10th IEEE International Conference and Workshops on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-5545-2
Electronic_ISBN :
978-1-4673-5544-5
DOI :
10.1109/FG.2013.6553817
