Patent ID: 8699799
Filing Date: 2014-04-15
Classification: G06K

Abstract:
1. A fingerprint verification apparatus, comprising; a registration fingerprint minutiae extracting unit that extracts real minutiae for a registration fingerprint image subjected to a preprocessing process; a minutiae protecting unit that transforms the extracted real minutiae by a polynomial based on unique information, generates a chaff minutiae using a value different from a polynomial result value of the real minutiae in order to hide the extracted real minutiae, generates registration minutiae information using the transformed real minutiae and the chaff minutiae, and stores the generated registration minutiae information in a storage unit; a verification fingerprint minutiae extracting unit that extracts the minutiae from an input verification fingerprint image; and a fingerprint comparing unit that determines whether the minutiae information extracted from the verification fingerprint minutiae extracting unit coincides with the registration minutiae information stored in the storing unit by measuring the similarity therebetween; wherein a degree of the polynomial is adaptively determined according to a number of minutiae extracted from the real minutiae.