System for iris detection, tracking and recognition at a distance
First Claim
Patent Images
1. A method for iris detection at a distance of non-cooperative or cooperative subjects, comprising:
- capturing an image of a face of a subject;
processing the image of the face of the subject to identify an eye region that contains at least one eye of the subject;
capturing an image of the identified eye region of the subject using an imaging device;
determining a iris rotational orientation relative to the imaging device of the iris of the at least one eye, including determining whether the iris rotational orientation provides a best iris rotational orientation towards the imaging device, the best iris rotational orientation being determined by algorithms that maximize a function that depends on key features of the iris to provide a point of maximization; and
re-acquiring an image of the eye region if it is determined that the iris rotational orientation does not provide the best iris rotational orientation towards the imaging device.
3 Assignments
0 Petitions
Accused Products
Abstract
A stand-off range or at-a-distance iris detection and tracking for iris recognition having a head/face/eye locator, a zoom-in iris capture mechanism and an iris recognition module. The system may obtain iris information of a subject with or without his or her knowledge or cooperation. This information may be sufficient for identification of the subject, verification of identity and/or storage in a database.
-
Citations
9 Claims
-
1. A method for iris detection at a distance of non-cooperative or cooperative subjects, comprising:
-
capturing an image of a face of a subject; processing the image of the face of the subject to identify an eye region that contains at least one eye of the subject; capturing an image of the identified eye region of the subject using an imaging device; determining a iris rotational orientation relative to the imaging device of the iris of the at least one eye, including determining whether the iris rotational orientation provides a best iris rotational orientation towards the imaging device, the best iris rotational orientation being determined by algorithms that maximize a function that depends on key features of the iris to provide a point of maximization; and re-acquiring an image of the eye region if it is determined that the iris rotational orientation does not provide the best iris rotational orientation towards the imaging device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification