US 10,210,374 B1Granted

Method and apparatus for fingerprint enrollment

AssigneeSecuGen Corporation

InventorDong Won Lee

Life of this patent

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Abstract

Method and apparatus are provided for a fingerprint enrollment. In one embodiment, a method for enrolling a fingerprint image may include instructing, by a controller, a user to roll a finger across a sensing surface of a fingerprint enrollment apparatus, capturing, by an image sensor, a current fingerprint image of the finger, capturing, by the image sensor, a next fingerprint image as the finger rolls across the sensing surface of the fingerprint enrollment apparatus, where the next fingerprint image is contiguous to the current fingerprint image, stitching, by the controller, the next fingerprint image to the current fingerprint image to form a stitched fingerprint image, determining, by the controller, whether the stitched fingerprint image meets fingerprint enrollment criteria, and storing, in a memory, the stitched fingerprint image in response to the stitched fingerprint image meeting the fingerprint enrollment criteria.

Claims24

Dependent claims

A method for enrolling a fingerprint image, comprising:

instructing, by a controller, a user to roll a finger across a sensing surface of a fingerprint enrollment apparatus;
capturing, by an image sensor, a current fingerprint image of the finger;
capturing, by the image sensor, a next fingerprint image as the finger rolls across the sensing surface of the fingerprint enrollment apparatus, wherein the next fingerprint image is contiguous to the current fingerprint image;
stitching, by the controller, the next fingerprint image to the current fingerprint image to form a stitched fingerprint image, comprising stitching the next fingerprint image to the current fingerprint image to form a stitched fingerprint image in response to no change of a rolling direction of the finger, and saving the next fingerprint image as the stitched fingerprint image in response to a change of the rolling direction of the finger;
determining, by the controller, whether the stitched fingerprint image meets fingerprint enrollment criteria;
and
storing, in a memory, the stitched fingerprint image in response to the stitched fingerprint image meeting the fingerprint enrollment criteria.

4 more elements

An apparatus for enrolling a fingerprint image, comprising:

a controller configured to instruct a user to roll a finger across a sensing surface of a fingerprint enrollment apparatus;
an image sensor configured to capture a current fingerprint image of the finger;
the image sensor is further configured to capture a next fingerprint image as the finger rolls across the sensing surface of the fingerprint enrollment apparatus, wherein the next fingerprint image is contiguous to the current fingerprint image;
the controller is further configured to stitch the next fingerprint image to the current fingerprint image to form a stitched fingerprint image, comprising stitch the next fingerprint image to the current fingerprint image to form a stitched fingerprint image in response to no change of a rolling direction of the finger, and save the next fingerprint image as the stitched fingerprint image in response to a change of the rolling direction of the finger;
the controller is further configured to determine whether the stitched fingerprint image meets fingerprint enrollment criteria;
and
a memory configured to store the stitched fingerprint image in response to the stitched fingerprint image meeting the fingerprint enrollment criteria.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/940,724Filed 29 Mar 2018
Granted: 19 Feb 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

G06T 3/4038
Scaling of whole images or parts thereof, e.g. expanding or contracting: image mosaicing, e.g. composing plane images from plane sub-images
G06T 5/40
Image enhancement or restoration: using histogram techniques
G06V 10/143
Optical characteristics of the device performing the acquisition or on the illumination arrangements: sensing or illuminating at different wavelengths
G06V 10/50
Extraction of image or video features: by performing operations within image blocks; by using histograms, e.g. histogram of oriented gradients…