Method and system for detecting biometric liveness
First Claim
Patent Images
1. A method of detecting whether a biometric is from a living source comprising:
- capturing a sequence of images of a biometric wherein the images are represented by image data and the biometric images in the sequence include at least one common blood vessel;
determining the widths of the common blood vessel in the captured images of the sequence from the biometric data associated with the respective images; and
comparing the determined widths of the common blood vessel in the captured images of the sequence to determine whether the captured images are from a living source.
5 Assignments
0 Petitions
Accused Products
Abstract
A method and system captures a sequence of images of a biometric wherein the images include a common reference. The system aligns the images represented by the image data with respect to the common reference. Thereafter, the system analyzes an attribute of the biometric represented in the sequence of images to determine whether the attribute changes in the sequence of images in accordance with a living source.
-
Citations
30 Claims
-
1. A method of detecting whether a biometric is from a living source comprising:
-
capturing a sequence of images of a biometric wherein the images are represented by image data and the biometric images in the sequence include at least one common blood vessel;
determining the widths of the common blood vessel in the captured images of the sequence from the biometric data associated with the respective images; and
comparing the determined widths of the common blood vessel in the captured images of the sequence to determine whether the captured images are from a living source. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of detecting whether captured images of an eye are from a living source comprising:
-
capturing a sequence of images of an eye wherein the images are represented by image data and the images in the sequence include at least one blood vessel;
locating the same blood vessel in the images of the sequence from the image data; and
determining from the image data associated with the respective images in the sequence whether the located blood vessel is pulsing to detect whether the captured images of the eye are from a living source. - View Dependent Claims (9, 10, 11, 12, 13, 14, 16, 17)
-
-
15. A method of detecting whether captured images of an eye are from a living source comprising:
-
capturing a sequence of images of a retina of the eye wherein the images are represented by image data and the images in the sequence include at least one blood vessel;
aligning the sequence of images;
identifying a blood vessel that is common in the sequence of images;
determining the variations in the widths of the common blood vessel in the sequence of images; and
determining whether the captured images are from a living source based on the variations in the width of the common blood vessel.
-
-
18. A method of detecting whether captured images of a biometric are from a living source comprising:
-
capturing a sequence of images of a biometric wherein the images are represented by image data and the images in the sequence include at least one blood vessel;
identifying a blood vessel common to each of the images in the sequence from the image data; and
analyzing an attribute of the common blood vessel represented by the image data in the sequence of images to determine whether the attribute of the common blood vessel changes in the sequence of images in accordance with a living source. - View Dependent Claims (19, 20)
-
-
21. A method of detecting whether captured images of an eye are from a living source comprising:
-
capturing a sequence of images of the eye wherein the images are represented by pixel image data and the images include a common reference;
aligning the images represented by the pixel image data with respect to the common reference; and
analyzing an attribute of the eye represented in the sequence of images to determine whether the attribute changes in the sequence of images in accordance with a living source. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
-
Specification