Patent ID: 11972630
Assignee: WEST VIRGINIA UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. A system, comprising:
processing circuitry comprising a processor and memory; and
a fingerprint unwarping and ridge enhancement application executable by the processing circuitry, where execution of the fingerprint unwarping and ridge enhancement application causes the processing circuitry to:
identify warp parameters associated with a contactless fingerprint sample, the warp parameters estimated from the contactless fingerprint sample by a deep convolutional neural network (DCNN) trained on a database comprising contactless fingerprint samples suffering from perspective distortions; and
generate an unwarped fingerprint sample from the contactless fingerprint sample, the unwarped fingerprint sample generated using an unwarping transformation based upon the identified warp parameters; and

wherein a distortion rectification application causes the processing circuitry to generate an enhanced ridge map from the unwarped fingerprint sample utilizing a convolutional neural network (CNN) based ridge enhancer.