Variational non rigid image registration using exclusive F-information

We address the problem of robust non rigid image registration and focus our interest on similarity criteria based on generalized information measures within the Ali-Silvey class. We introduce exclusive f-information as a novel class of similarity functionals, and develop a generic variational framework for their optimization over nonparametric and parametric transform spaces. This approach is applied to blind nonrigid alignment of face images with arbitrary lighting conditions and complex deformations.