Fusion of images in enhanced obstacle detection
First Claim
Patent Images
1. A system comprising:
- a first camera mountable on a vehicle;
a second camera mountable on the vehicle behind the first camera; and
a processor operatively connected to said first and second cameras, wherein said processor is adapted to acquire a first image frame from said first camera and to acquire a second image frame from said second camera;
wherein said processor is configured to locate a first feature of a first image of an object in the first image frame and a second feature of a second image of said object in the second image frame and determine alignment thereby of the first and second image frames,wherein respective locations of the first feature in the first image frame and the second feature in the second image frame are responsive to respective positions of the second camera behind the first camera, andwherein said processor is configured to compute a distance between said vehicle and said object based on said alignment.
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Abstract
A vehicle warning system that includes: a first camera mounted on the vehicle at a first longitudinal position along the length of the vehicle, which acquires consecutively in real time a plurality of first camera image frames; a second camera mounted on the vehicle at a second longitudinal position along the length of the vehicle, which acquires second camera image frames; and a processor configured to use information in both first and second camera image frames to determine whether there is a danger of a collision between the vehicle and an object shown in both the first and second camera images. The first and second longitudinal positions may be at different positions along the length of the vehicle.
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Citations
24 Claims
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1. A system comprising:
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a first camera mountable on a vehicle; a second camera mountable on the vehicle behind the first camera; and a processor operatively connected to said first and second cameras, wherein said processor is adapted to acquire a first image frame from said first camera and to acquire a second image frame from said second camera; wherein said processor is configured to locate a first feature of a first image of an object in the first image frame and a second feature of a second image of said object in the second image frame and determine alignment thereby of the first and second image frames, wherein respective locations of the first feature in the first image frame and the second feature in the second image frame are responsive to respective positions of the second camera behind the first camera, and wherein said processor is configured to compute a distance between said vehicle and said object based on said alignment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method performable by a system mountable on a vehicle, the system including a first camera, a second camera mountable behind the first camera and a processor operatively connected to the first and second cameras, the method comprising:
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acquiring a first image frame from the first camera; acquiring a second image frame from the second camera; locating a first feature of a first image of an object in the first image frame and a second feature of a second image of said object in the second image frame, thereby aligning the first and second image frames, wherein respective locations of the first feature in the first image frame and the second feature in the second image frame are responsive to respective positions of the second camera behind the first camera; and comprising a distance between said vehicle and said object based on said aligning. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification