An Algorithm On Separation Of Overlapped Fingerprints Based On Direction Image

An algorithm on separation of overlapped fingerprints based on direction imageA critical step in automatic fingerprint matching is to automatically and reliably extract minutiae from the input fingerprint images. However, the performance of a minutiae extraction algorithm relies heavily on the quality of the input fingerprint images. In order to ensure that the performance of an automatic fingerprint identification system will be robust with respect to the quality of input fingerprint images, it is essential to incorporate a fingerprint enhancement algorithm in the minutiae extraction module. A number of techniques have been proposed to enhance gray-level fingerprint images. They usually process the single fingerprint. In this paper we propose an algorithm about how to separate the two overlapped fingerprints. We consider one of the fingerprints as the noise of the other. Experimental results show that the algorithm does improved the quality of fingerprint images.