Enhanced face recognition in video
First Claim
1. A computer-implemented method of selecting at least one image frame for facial recognition, comprising:
- under the control of an electronic device comprising at least one infrared (IR) imaging mechanism and configured with executable instructions,detecting at least one feature in at least one image, the feature being indicative of a person'"'"'s head;
activating the at least one IR imaging mechanism of the electronic device operable to emit IR light;
detecting features corresponding to pupils in reflected IR light;
analyzing the detected features to determine at least one attribute of the detected features in the reflected IR light; and
selecting a frame of the at least one image when at least one attribute of the detected features meets a specified criterion.
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Abstract
The computational resources needed to perform processes such as image recognition can be reduced by determining appropriate frames of image information to use for the processing. In some embodiments, infrared imaging can be used to determine when a person is looking substantially towards a device, such that an image frame captured at that time will likely be adequate for facial recognition. In other embodiments, sound triangulation or motion sensing can be used to assist in determining which captured image frames to discard and which to select for processing based on any of a number of factors indicative of a proper frame for processing.
34 Citations
21 Claims
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1. A computer-implemented method of selecting at least one image frame for facial recognition, comprising:
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under the control of an electronic device comprising at least one infrared (IR) imaging mechanism and configured with executable instructions, detecting at least one feature in at least one image, the feature being indicative of a person'"'"'s head; activating the at least one IR imaging mechanism of the electronic device operable to emit IR light; detecting features corresponding to pupils in reflected IR light; analyzing the detected features to determine at least one attribute of the detected features in the reflected IR light; and selecting a frame of the at least one image when at least one attribute of the detected features meets a specified criterion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer-implemented method of selecting at least one image frame for facial recognition, comprising:
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under the control of an electronic device comprising at least one infrared (IR) imaging mechanism and configured with executable instructions, detecting at least one feature in image data, the feature being indicative of a person'"'"'s head; activating the at least one IR imaging mechanism of the electronic device operable to emit IR light; detecting features corresponding to a person'"'"'s corneas in reflected IR light; initiating a capture of at least one image on the electronic device; and selecting a frame of the at least one image based on a specified selection criterion. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A computer system, comprising:
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one or more processors; a memory device including instructions that, when executed by the one or more processors, cause the computing system to; detecting at least one feature in at least one image frame, the feature being indicative of a person'"'"'s head; activate at least on infrared (IR) imaging mechanism of an electronic device operable to illuminate a person with at least one wavelength of IR light and detect IR light reflected back from the person; detect features corresponding to the person in the reflected IR light; and select a frame of the at least one image when the detected features meet a specified selection criterion. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification