Method, apparatus and system for using computer vision to identify facial characteristics
First Claim
Patent Images
1. A method of detecting a location of an eye with a structured light depth imaging device, comprising:
- projecting light from a structured lighting source towards a face, the structured lighting source located off an optical axis of the structured light depth imaging device;
receiving the light returned from the face to the structured light depth imaging device; and
generating a depth image from the light returned from the face to the structured light depth imaging device, the depth image including a contrast area indicating the location of the eye.
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Abstract
A method, apparatus and system identify the location of eyes. Specifically, structured light is transmitted towards an object from a structured light source off the optical axis of a structured light depth imaging device. The light returned from the object to the structured light depth imaging device is used to generate a depth image. In the event the object is a face, contrast areas in the depth image indicate the location of the eyes.
107 Citations
27 Claims
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1. A method of detecting a location of an eye with a structured light depth imaging device, comprising:
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projecting light from a structured lighting source towards a face, the structured lighting source located off an optical axis of the structured light depth imaging device;
receiving the light returned from the face to the structured light depth imaging device; and
generating a depth image from the light returned from the face to the structured light depth imaging device, the depth image including a contrast area indicating the location of the eye. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for detecting a location of an eye on a face, comprising:
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a structured light depth imaging device;
a structured lighting source located off an axis of the structured light depth imaging device, the structured lighting source capable of projecting light towards the face and the structured light depth imaging device capable of generating a depth image from the light returned from the face, the depth image including a contrast area indicating the location of the eye; and
a processor capable of synchronizing the structured light depth imaging device with the structured lighting source. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A structured light depth imaging apparatus for detecting a location of an eye, comprising:
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a structured light depth image sensor capable of sensing light returned from the eye, the light being projected towards the eye from a light source off the axis of the apparatus;
a processor capable of processing the light returned from the eye to generate a depth image indicating the location of the eye as a contrast area on the depth map; and
a synchronization mechanism capable of synchronizing signals between the depth image sensor, the light source and the processor. - View Dependent Claims (15)
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16. A method of using a structured light depth imaging device to identify characteristics of a face, comprising:
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capturing an image;
applying a pattern recognition technique to the image to detect a candidate facial region;
projecting light from a structured lighting source towards the candidate face region, the structured lighting source located off an optical axis of the depth imaging device;
receiving the light returned from the candidate face region to the structured light depth imaging device; and
generating a depth image from the light returned from the candidate face region to the structured light depth imaging device, the depth image including a contrast area indicating the location of an eye. - View Dependent Claims (17, 18)
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19. A method for generating a facial image, comprising:
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receiving a depth image generated by a structured light depth imaging device, the structured light depth imaging device coupled to a structured lighting source located off an axis of the structured light depth imaging device, the structured lighting source capable of projecting light towards a face and the structured light depth imaging device capable of generating a depth image from the light returned from the face, the depth image including a contrast area indicating the location of the eye on the face;
processing the depth image to identify the contrast area on the depth image; and
generating the facial image based on the location of the eye. - View Dependent Claims (20, 21)
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22. An article comprising a machine-accessible medium having stored thereon instructions that, when executed by a machine, cause the machine to:
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project light from a structured lighting source towards a face, the structured lighting source located off an optical axis of a structured light depth imaging device;
receive the light returned from the face to the depth imaging device; and
generate a depth image from the light returned from the face to the structured light depth imaging device, the depth image including a contrast area identifying the location of an eye. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification