FAST FINGERPRINT IDENTIFICATION AND VERIFICATION BY MINUTIAE PAIR INDEXING

摘要

For each minutia in the fingerprint, a set of surrounding "neighborhood" minutiae is identified. In each neighborhood, each minutiae pair of central and neighboring minutiae is described by several features including (but not limited to) the spacing between the two minutiae in a pair, the difference of orientations of two minutiae and the angle between the orientation of the central minutia and a line connecting the two minutiae. From these minutiae pair features, a minutiae pair index is constructed. The minutiae pair indices of enrolled fingerprints are compared to those of a proffered fingerprint. Identification of match can be by way of sufficient matching indices, sufficient matching neighborhoods identified from matching indices, and can be verified by a detailed comparison of corresponding minutiae pairs.