Eye detection system using a single camera
First Claim
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1. A method for detecting the location of at least one eye of a driver positioned in a driving seat of a vehicle using a single camera positioned inside the vehicle, said method comprising:
- determining a set of positional parameters corresponding to the driving seat, where said set of positional parameters includes an angle between a back-rest of the driving seat and a vertical plane, a distance between an edge of the driving seat and a center of the camera and a length of the back-rest of the driving seat;
determining a set of parameters corresponding to the camera, wherein the set of parameters corresponding to the camera includes a focal length of the camera, an angle between the camera and a vertical plane and one or more positional parameters of the camera based on a known profile of an interior of the vehicle;
capturing an image of a face of the driver using the camera; and
detecting the eye location based on the set of positional parameters, the image of the face and the set of parameters corresponding to the camera.
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Abstract
A system and a method for detecting the eyes of a driver of a vehicle using a single camera. The method includes determining a set of positional parameters corresponding to a driving seat of the vehicle. The camera is positioned at a pre-determined location inside the vehicle, and a set of parameters corresponding to the camera is determined. The location of the driver'"'"'s eyes is detected using the set of positional parameters, an image of the driver'"'"'s face and the set of parameters corresponding to the camera.
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Citations
19 Claims
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1. A method for detecting the location of at least one eye of a driver positioned in a driving seat of a vehicle using a single camera positioned inside the vehicle, said method comprising:
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determining a set of positional parameters corresponding to the driving seat, where said set of positional parameters includes an angle between a back-rest of the driving seat and a vertical plane, a distance between an edge of the driving seat and a center of the camera and a length of the back-rest of the driving seat; determining a set of parameters corresponding to the camera, wherein the set of parameters corresponding to the camera includes a focal length of the camera, an angle between the camera and a vertical plane and one or more positional parameters of the camera based on a known profile of an interior of the vehicle; capturing an image of a face of the driver using the camera; and detecting the eye location based on the set of positional parameters, the image of the face and the set of parameters corresponding to the camera. - View Dependent Claims (2, 3, 4, 5)
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6. A method for detecting the location of at least one eye of a driver of a vehicle using a single camera positioned inside the vehicle, said method comprising:
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determining a set of positional parameters corresponding to a first rear-view mirror of one or more rear-view mirrors, where the set of positional parameters includes an angle between a center of a head of the driver and the first rear-view mirror in a horizontal plane, an angle between the center of the head of the driver and the first rear-view mirror in a vertical plane, a distance between the center of the head of the driver and the first rear-view mirror in the horizontal plane, measured along a direction perpendicular to a direction of motion of the vehicle and a center of the camera and a distance between the center of the camera and the first rear-view mirror in the horizontal plane, measured along a direction of motion of the vehicle; determining a set of parameters corresponding to the camera; capturing an image of a face of the driver using the camera; and detecting the eye location based on the set of positional parameters, the image of the face and the set of parameters corresponding to the camera. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A system for detecting the location of at least one eye of a driver positioned in a driving seat of a vehicle, said system comprising:
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a driving seat position module for determining a first set of positional parameters corresponding to the driving seat, where said driving seat position module includes a driving seat inclination sensor to measure an angle between a back-rest of the driving seat and a vertical plane and a driving seat position sensor to measure a distance between an edge of the driving seat and a center of the camera; a camera module for determining a set of parameters corresponding to a camera, where said camera module includes a camera position sensor to measure an angle between the camera and a vertical plane; a rear-view mirror module for determining a second set of positional parameters corresponding to at least one rear-view mirror; and an eye location detection module for detecting the eye location based on an image from the camera, the set of parameters corresponding to the camera and at least one of the first set of positional parameters and the second set of positional parameters. - View Dependent Claims (13, 14, 15, 16)
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17. A method for detecting the location of at least one eye of a driver positioned in a driving seat of a vehicle using a single camera positioned inside the vehicle, said method comprising:
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determining a set of positional parameters corresponding to the driving seat; determining a set of parameters corresponding to the camera; capturing an image of a face of the driver using the camera; detecting the eye location based on the set of positional parameters, the image of the face and the set of parameters corresponding to the camera; and calculating the eye location using the equation;
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18. A method for detecting the location of at least one eye of a driver of a vehicle using a single camera positioned inside the vehicle, said method comprising:
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determining a set of positional parameters corresponding to a first rear-view mirror of one or more rear-view mirrors; determining a set of parameters corresponding to the camera; capturing an image of a face of the driver using the camera; detecting the eye location based on the set of positional parameters, the image of the face and the set of parameters corresponding to the camera; and calculating the eye location using the equation;
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19. A method for detecting the location of at least one eye of a driver positioned in a driving seat of a vehicle using a single, camera positioned inside the vehicle, said method comprising:
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determining a set of positional parameters corresponding to the driving seat, where said set of positional parameters includes an angle between a back-rest of the driving seat and a vertical plane, a distance between an edge of the driving seat and a center of the camera and a length of the back-rest of the driving seat; determining a set of parameters corresponding to the camera; capturing an image of a face of the driver using the camera; and detecting the eye location based on the set of positional parameters, the image of the face and the set of parameters corresponding to the camera; and calculating the eye location using the equation;
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Specification