Facial contour recognition for identification
First Claim
1. A system comprising:
- a light source having a left portion, a center portion, and a right portion, wherein each of the portions is selectively controllable to provide selective illumination of a face of a user;
a 2-dimensional (2D) camera having an imager to provide image data of the face under the selective illumination;
a light source controller to control the light source; and
a contour analyzer to analyze shadows cast by features on the face under the selective illumination provided by the portions, wherein the contour analyzer is to compute contours of the face based on the shadows; and
a shadow analyzer to;
detect the shadows;
determine a size of the shadows; and
compute a height of the features that cast the shadows.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems, apparatuses, and/or methods may provide for identifying a face of a user by extracting contour information from images of shadows cast on the face by a facial features illuminated by a controllable source of illumination. The source of illumination may be left, center, and right portions of the light emitting diode (LED) display on a smart phone, tablet, or notebook that has a forward-facing two-dimensional (2D) camera for obtaining the images. In one embodiment, the user is successively photographed under illumination provided using the left, the center, and the right portions of the LED display, providing shadows on the face from which identifying contour information may be extracted and/or determined.
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Citations
24 Claims
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1. A system comprising:
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a light source having a left portion, a center portion, and a right portion, wherein each of the portions is selectively controllable to provide selective illumination of a face of a user; a 2-dimensional (2D) camera having an imager to provide image data of the face under the selective illumination; a light source controller to control the light source; and a contour analyzer to analyze shadows cast by features on the face under the selective illumination provided by the portions, wherein the contour analyzer is to compute contours of the face based on the shadows; and a shadow analyzer to; detect the shadows; determine a size of the shadows; and compute a height of the features that cast the shadows. - View Dependent Claims (2, 4, 5, 6)
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3. (canceled)
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7. An apparatus comprising:
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a light source controller to control a light source having a left portion, a center portion, and a right portion, wherein each of the portions is selectively controllable to provide selective illumination of a face of a user; a camera controller to control a 2-dimensional (2D) camera having an imager to provide image data of the face under the selective illumination; a contour analyzer to analyze shadows cast by features on the face under the selective illumination provided by the portions, wherein the contour analyzer is to compute contours of the face based on the shadows; and a shadow analyzer to; detect the shadows; determine a size of the shadows; and compute a height of the features that cast the shadows. - View Dependent Claims (8, 10, 11, 12)
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9. (canceled)
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13. A method comprising:
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selectively illuminating portions of a face of a user by selectively activating portions of a light source including a left portion, a center portion, and a right portion; generating image data of the face under selective illumination; detecting shadows cast by features on the face under the selective illumination provided by the portions of the light source; analyzing the shadows, including; determining a size of the shadows; and computing a height of the features casting the shadows; and computing contours of the face based on the shadows. - View Dependent Claims (14, 16, 17, 18)
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15. (canceled)
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19. At least one computer readable storage medium comprising a set of instructions, which when executed by an apparatus, cause the apparatus to:
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selectively illuminate portions of a face of a user by selectively activating portions of a light source including a left portion, a center portion, and a right portion; generate image data of the face under selective illumination; detect shadows cast by features on the face under the selective illumination provided by the portions of the light source; analyze the shadows, including; determine a size of the shadows; and compute a height of the features casting the shadows; and compute contours of the face based on the shadows. - View Dependent Claims (20, 22, 23, 24)
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21. (canceled)
Specification