Imaging system and method for monitoring an eye
First Claim
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1. A system for monitoring an eye, said system comprising:
- a video imaging camera oriented to generate images of an eye, wherein the camera is aligned along an imaging axis;
a first light source located at an angle less than 2.5 degrees from the imaging axis for illuminating the eye;
a second light source arranged at an angle greater than 4.5 degrees from the imaging axis for illuminating the eye; and
a processor for processing the images generated with the video imaging camera during illumination of the eye with the first light source, and during illumination of the eye with the second light source.
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Abstract
A system and method are provided for monitoring an eye. The system includes a video imaging camera oriented to generate images of an eye. The camera is aligned along an imaging axis. A first light source is located at an angle less than 2.5 degrees of the imaging axis for illuminating the eye. A second light source is arranged at an angle greater than 4.5 degrees from the imaging axis for illuminating the eye. The system includes a processor for processing the images generated with the video imaging camera during illumination of the eye with the first light source and during illumination of the eye with the second light source.
47 Citations
24 Claims
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1. A system for monitoring an eye, said system comprising:
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a video imaging camera oriented to generate images of an eye, wherein the camera is aligned along an imaging axis;
a first light source located at an angle less than 2.5 degrees from the imaging axis for illuminating the eye;
a second light source arranged at an angle greater than 4.5 degrees from the imaging axis for illuminating the eye; and
a processor for processing the images generated with the video imaging camera during illumination of the eye with the first light source, and during illumination of the eye with the second light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vehicle eye monitoring system for monitoring an eye of a person in a vehicle, said system comprising:
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a video imaging camera located on a vehicle and oriented to generate images of an eye of a person in the vehicle, wherein the camera is aligned along an imaging axis;
a first light source located on the vehicle and arranged at an angle less than 2.5 degrees from the imaging axis for illuminating the eye;
a second light source located on the vehicle and arranged at an angle greater than 4.5 degrees from the imaging axis for illuminating the eye; and
a processor for processing the images generated with the video imaging camera during illumination of the eye with the first light source, and during illumination of the eye with the second light source. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for monitoring an eye, said method comprising the steps of:
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arranging a video imaging camera oriented along an imaging axis to generate images of an eye;
arranging a first light source at an angle less than 2.5 degrees from the imaging axis;
arranging a second light source at an angle greater than 4.5 degrees from the imaging axis;
illuminating an eye with the first light source;
generating a first image of the eye while the eye is illuminated with the first light source;
illuminating the eye with the second light source;
generating a second image of the eye while the eye is illuminated with the second light source; and
processing the first and second images. - View Dependent Claims (21, 22, 23, 24)
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Specification