Frontal Face Authentication Using Morphological Elastic Graph Matching This Work Was Carried out within the Framework of European Union Acts Research Project (ac-102) \multi- Modal Veriication Techniques for Tele-services and Security Applications" (m2vts)

A novel dynamic link architecture based on multiscale morphological dilation-erosion is proposed for frontal face authentication. Instead of a set of Gabor lters tuned to diierent orientations and scales, mul-tiscale morphological operations are employed to yield a feature vector at each node of the reference grid. Linear projection algorithms for feature selection and automatic weighting of the nodes according to their discriminatory power succeed to increase the authentication capability of the method. The performance of morphological dynamic link architecture is evaluated in terms of the receiver operating characteristic in the M2VTS face image database. The comparison with other frontal face authentication algorithms indicates that the morphological dynamic link architecture with discriminatory power coeecients is the best algorithm with respect to the equal error rate achieved.