A facial 3D description brings much more information, possibly rotation and scale independent. Most of the methods are sensitive to pose and lighting conditions. Our approach is to use 3D information to enhance the grey level analysis. Furthermore , the 3D analysis brings robust features and can help normalise a gray level approach that would otherwise largely depend on illumination and point of view. First, the ever increasing mobility of people raised the issue of improving security.
Typical applications concern the access to buildings, networks or secured data.
In Proceedings of the IEEE, The institute of electrical and electronics engineers, inc., Vol. 83, No. 5, May 1995, pp 705-740. From the available biometric systems, facial analysis remains one of the solutions well accepted by the user. We attribute these qualities to the geometrical nature of the profile information, independent of illumination and involving rather rigid parts. 705-740, May 1995. 1 Corresponding author.