Patent Document ID: 9626548
Application ID: 15204696
Patent Status: 1

Claim One:
1. An image quality determination method, for an input biometric image of any resolution, comprising: receiving, at a quality module that includes a processor, storage and an I/O module, the image from a scanner; storing the received image in the storage; determining, using a processor connected to the storage, a ridge flow for the received image, wherein a grid spacing for the received image is determined based on a resolution of the received image; establishing a ridge flow map for a portion of the received image; identifying one or more ridge flow detections; determining a quality of the received image at least based on the identified ridge flow detections; and determining, based on the determined quality, whether to provide feedback, via one or more of an audio and video feedback device connected to the processor, to a fingerprintee and, when feedback is needed, providing feedback via the one or more of the audio and video feedback device to the fingerprintee.