IRIS IMAGING AND IRIS-BASED IDENTIFICATION
First Claim
Patent Images
1. A method of identifying an individual, the method comprising:
- acquiring at least one attribute of the individual;
selecting one of a plurality of possible illumination spectra based on the at least one attribute;
illuminating an eye of the individual with electromagnetic radiation having the illumination spectrum;
capturing an image of the eye while the eye is illuminated with the electromagnetic radiation having the illumination spectrum; and
identifying the individual based on the image.
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Abstract
An iris of an individual is imaged while illuminated with electromagnetic radiation having an illumination spectrum that is selected based on a color of the iris. The illumination spectrum/spectra is/are selected so that the resulting image will have a sufficient amount of detail of the iris as required for the application, such as identification of the individual. Alternatively, the iris can be imaged multiple times while illuminated by electromagnetic radiation of one of multiple different illumination spectra, and the best image or a combination of the images can be used for the application.
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Citations
21 Claims
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1. A method of identifying an individual, the method comprising:
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acquiring at least one attribute of the individual; selecting one of a plurality of possible illumination spectra based on the at least one attribute; illuminating an eye of the individual with electromagnetic radiation having the illumination spectrum; capturing an image of the eye while the eye is illuminated with the electromagnetic radiation having the illumination spectrum; and identifying the individual based on the image. - View Dependent Claims (2, 3, 4)
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5. A method of identifying an individual, the method comprising:
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illuminating an eye of the individual with electromagnetic radiation having a first illumination spectrum; capturing a first image of the eye while the eye is illuminated with the electromagnetic radiation having the first illumination spectrum; repeating the illuminating and capturing for at least one different illumination spectrum; and identifying the individual based on the captured images. - View Dependent Claims (6, 7, 8, 9)
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10. A system for identifying an individual, the system comprising:
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a set of illumination devices, the set of illumination devices being configurable to emit electromagnetic radiation having at least one of a plurality of possible illumination spectra; an imaging device that captures an image of an eye of the individual; and a computer system for selecting at least one of the plurality of possible illumination spectra, operating the set of illumination devices to emit the selected at least one of the plurality of possible illumination spectra, operating the imaging device to capture the image while the eye is illuminated, and identifying the individual based on the captured image. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method comprising:
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capturing a first image of an iris under visible light; measuring a color of the iris from the first image; selecting one of a plurality of possible illumination spectra based on the color; illuminating the iris with electromagnetic radiation having the selected illumination spectrum; and capturing a second image of the iris while the iris is illuminated with the electromagnetic radiation having the selected illumination spectrum. - View Dependent Claims (20, 21)
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Specification