Abstract: Biometric identification system must be able to distinguish between individuals even in situation where the biometric signature may be similar, such as in the identical twins. Main focus is on twin based image retrieval which retrieves all image from database by matching some of the basic features of identical twins like nose, lips, eyes, forehead and face features. With the advancement of computer technology Image Retrieval based on Identical twin face recognition is a challenging task because of the high degree of similarity in their overall facial appearance. Commercial face recognition systems exhibit poor performance in differentiating between identical twins under practical conditions as they cannot be discriminated based on DNA.

Keywords: Face recognition, Facial marks, Identical twins, Image retrieval