Contactless rolled fingerprints
AssigneeThales Dis France SAS
InventorsRobert W. Shannon, Glenn E. Casner, Douglas Scott Dunn, Anne Jinsong Wang, Chin-Yee Ng, Brian L. Linzie, Brett A. Howell
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Abstract
In an example, a method includes capturing one or more friction ridge images of a finger at an instance in time, the one or more friction ridge images including a plurality of perspectives of the finger. The method also includes determining, from the one or more friction ridge images, a rolled fingerprint representation of the finger, the rolled fingerprint representation comprising data from the plurality of perspectives, and outputting the rolled fingerprint representation.
Claims22
A method comprising:
- determining a distance between one or more cameras responsible for capturing one or more friction ridge images and a finger;
- after determining said distance, capturing the one or more friction ridge images of the finger at an instance in time, the one or more friction ridge images including a plurality of perspectives of the finger;
- determining, from the one or more friction ridge images, a rolled fingerprint representation of the finger, the rolled fingerprint representation comprising data from the plurality of perspectives;
- outputting the rolled fingerprint representation, and
- outputting an indication that the distance is equal to a predetermined distance for the capturing of the one or more friction ridge images.
A device comprising:
- a distance component configured to determine a distance between one or more cameras responsible for capturing one or more friction ridge images and a finger;
- one or more cameras configured to capture, after the distance component determines said distance, the one or more friction ridge images of the finger at an instance in time, the one or more friction ridge images including a plurality of perspectives of the finger;
- a memory configured to store the one or more friction ridge images, and
- one or more processors configured to:
- determine, from the one or more friction ridge images, a rolled fingerprint representation of the finger, the rolled fingerprint representation comprising data from the plurality of perspectives;
- output the rolled fingerprint representation, and
- output an indication that the distance is equal to a predetermined distance for the capturing of the one or more friction ridge images.
Dependencies are inferred from the claim text.