Direct Regression of Distortion Field from a Single Fingerprint Image
Direct Regression of Distortion Field from a Single Fingerprint Image
Skin distortion is a long standing challenge in fingerprint matching, which causes false non-matches. Previous studies have shown that the recognition rate can be improved by estimating the distortion field from a distorted fingerprint and then rectifying it into a normal fingerprint. However, existing rectification methods are based on principal …