Collision warning system
First Claim
Patent Images
1. A system for providing an indication of a possible collision between a vehicle and an object, the system comprising:
- at least one processing device configured to;
receive a plurality of images from an image capture device;
identify a position of the object in at least two images of the plurality of images;
determine, based on the plurality of images, a value indicative of a time-to-collision (TTC) that is responsive to a relative acceleration between the vehicle and the object;
determine if the vehicle and the object are on a collision course based on the position of the object in the at least two images and the value indicative of the TTC; and
cause a response in the system if the vehicle and the object are determined to be on a collision course.
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Abstract
A method of estimating a time to collision (TTC) of a vehicle with an object comprising: acquiring a plurality of images of the object; and determining a TTC from the images that is responsive to a relative velocity and relative acceleration between the vehicle and the object.
48 Citations
18 Claims
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1. A system for providing an indication of a possible collision between a vehicle and an object, the system comprising:
at least one processing device configured to; receive a plurality of images from an image capture device; identify a position of the object in at least two images of the plurality of images; determine, based on the plurality of images, a value indicative of a time-to-collision (TTC) that is responsive to a relative acceleration between the vehicle and the object; determine if the vehicle and the object are on a collision course based on the position of the object in the at least two images and the value indicative of the TTC; and cause a response in the system if the vehicle and the object are determined to be on a collision course. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A vehicle, comprising:
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a body; an image capture configured to acquire images from an environment of the vehicle; at least one processing device configured to; receive a plurality of images from the image capture device; identify a position of the object in at least two images of the plurality of images; determine, based on the plurality of images, a value indicative of a time-to-collision (TTC) that is responsive to a relative acceleration between the vehicle and the object; determine if the vehicle and the object are on a collision course based on the position of the object in the at least two images and the value indicative of the TTC; and cause a response by the vehicle if the vehicle and the object are determined to be on a collision course.
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18. A method for providing an indication of a possible collision between a vehicle and an object, the method comprising:
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receiving a plurality of images from an image capture device; identifying a position of the object in at least two images of the plurality of images; determining, based on the plurality of images, a value indicative of a time-to-collision (TTC) that is responsive to a relative acceleration between the vehicle and the object; determining if the vehicle and the object are on a collision course based on the position of the object in the at least two images and the value indicative of the TTC; and causing a response by the vehicle if the vehicle and the object are determined to be on a collision course.
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Specification