System And Method For Iris Identification Using Stereoscopic Face Recognition
First Claim
1. A system for iris recognition using stereoscopic face recognition, comprising:
- two or more face recognition cameras for photographing two or more face images of an authenticatee;
a recognition system for receiving the face images photographed by the face recognition cameras from the face recognition cameras and creating stereoscopic face information on the basis of the face images, the information including detected location information of pupils of the authenticatee by extracting parts of the face from the face images, and a detected distance information between the pupils and the face recognition cameras calculated by(i) obtaining a distance (dθ
) between the two images on an image plane formed by the two face recognition cameras in a point (B) of an objective plane;
(ii) obtaining a distance (l) between the objective plane and the face recognition cameras by dividing, a value obtained by multiplying a distance (b) between the two face recognition cameras by a focal distance of the stereo cameras, by the distance (dθ
) between the two images on the image plane formed by the two face recognition cameras in the point (B) of the objective plane; and
(iii) moving the face recognition cameras by a distance obtained by subtracting the focal distance (f) of the two face recognition cameras from the distance (l) between the objective plane and the face recognition cameras in order to obtain a clear image; and
two or more iris recognition cameras controlled by the recognition system to photograph irises of the authenticatee using the created stereoscopic face information after adjusting a focal distance of the two or more iris recognition cameras based on the detected location and distance information.
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Accused Products
Abstract
Disclosed herein is a system and method for iris recognition including stereoscopic face recognition, which can recognize irises using a stereoscopic face recognition system in order to recognize an authenticatee. The system includes two or more face recognition cameras for photographing two or more face images of an authenticatee; a recognition system for receiving the face images photographed by the face recognition cameras from the face recognition cameras and creating stereoscopic face information on the basis of the face images; and one or more iris recognition cameras controlled by the recognition system to photograph focused irises of the authenticatee using the created stereoscopic face information.
83 Citations
16 Claims
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1. A system for iris recognition using stereoscopic face recognition, comprising:
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two or more face recognition cameras for photographing two or more face images of an authenticatee; a recognition system for receiving the face images photographed by the face recognition cameras from the face recognition cameras and creating stereoscopic face information on the basis of the face images, the information including detected location information of pupils of the authenticatee by extracting parts of the face from the face images, and a detected distance information between the pupils and the face recognition cameras calculated by (i) obtaining a distance (dθ
) between the two images on an image plane formed by the two face recognition cameras in a point (B) of an objective plane;(ii) obtaining a distance (l) between the objective plane and the face recognition cameras by dividing, a value obtained by multiplying a distance (b) between the two face recognition cameras by a focal distance of the stereo cameras, by the distance (dθ
) between the two images on the image plane formed by the two face recognition cameras in the point (B) of the objective plane; and(iii) moving the face recognition cameras by a distance obtained by subtracting the focal distance (f) of the two face recognition cameras from the distance (l) between the objective plane and the face recognition cameras in order to obtain a clear image; and two or more iris recognition cameras controlled by the recognition system to photograph irises of the authenticatee using the created stereoscopic face information after adjusting a focal distance of the two or more iris recognition cameras based on the detected location and distance information. - View Dependent Claims (2, 3, 4)
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5. A method for iris recognition using stereoscopic face recognition, comprising the steps of:
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photographing two or more face images of an authenticatee using two or more face recognition cameras to stereoscopically photograph a face of an authenticatee; creating stereoscopic face information on the basis of the face images and detecting location information of pupils of the authenticatee by extracting parts of the face from the face images; calculating a distance between the stereoscopic face recognition cameras to pupils by (i) obtaining a distance (dθ
) between the two images on an image plane formed by the two face recognition cameras in a point (B) of an objective plane;(ii) obtaining a distance (l) between the objective plane and the face recognition cameras; and (iii) moving the face recognition cameras by a distance obtained by subtracting the focal distance (f) of the two face recognition cameras from the distance (l) between the objective plane and the face recognition camera in order to obtain a clear image; adjusting two or more stereoscopic iris recognition cameras based on the calculated distance to pupils to adjust a focal distance of the iris recognition cameras; and photographing irises of the authenticatee with the two or more iris recognition cameras using the calculated location of the face and the distance to the pupils. - View Dependent Claims (6, 7, 8, 9)
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10. A system for iris recognition using stereoscopic face recognition, comprising:
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a camera system comprising;
two or more face recognition cameras for photographing two or more face images of an authenticatee;
two or more iris recognition cameras for photographing a left iris and a right iris of an authenticatee;
a face illumination light source that illuminates a face of an authenticatee;
an iris illumination light source that illuminates a left iris and a right iris of an authenticatee;
a stepping motor for adjusting the iris recognition cameras; and
a control board electrically connected to the face recognition cameras, the iris recognition cameras, the face illuminating light source, the iris illuminating light source and the stepping motor; anda recognition application system having recognition software configured for operation with the camera system through a transmission line; one or more video signal cables for transmitting iris and face image information obtained by the cameras to the recognition application system; wherein the recognition application system receives the face images photographed by the face recognition cameras from the face recognition cameras and creates stereoscopic face information on the basis of the face images, the information including detected location information of pupils of the authenticatee by extracting parts of the face from the face images, and a detected distance information between the pupils and the face recognition cameras calculated by (i) obtaining a distance (dθ
) between the two images on an image plane formed by the two face recognition cameras in a point (B) of an objective plane;(ii) obtaining a distance (l) between the objective plane and the face recognition cameras by dividing a value obtained by multiplying a distance (b) between the two face recognition cameras by a focal distance of the stereo cameras, by the distance (dθ
) between the two images on the image plane formed by the two face recognition cameras in the point (B) of the objective plane; and(iii) moving the face recognition cameras by a distance obtained by subtracting the focal distance (f) of the two face recognition cameras from the distance (l) between the objective plane and the face recognition camera in order to obtain a clear image; and wherein the stepping motor moves the iris recognition cameras on the basis of the calculated result, to focus the iris recognition cameras on the irises and photograph the irises of the authenticatee. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification