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;
determine at least one value indicative of a Time To Collision (TTC) based on an indicator of a relative acceleration between the vehicle and the object, wherein the indicator of the relative acceleration is determined based on the plurality of images;
compare the at least one value indicative of the TTC with a threshold; and
cause a response in the system if the comparison between the at least one value indicative of the TTC and the threshold indicates a possible collision between the vehicle and the object.
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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.
53 Citations
21 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; determine at least one value indicative of a Time To Collision (TTC) based on an indicator of a relative acceleration between the vehicle and the object, wherein the indicator of the relative acceleration is determined based on the plurality of images; compare the at least one value indicative of the TTC with a threshold; and cause a response in the system if the comparison between the at least one value indicative of the TTC and the threshold indicates a possible collision between the vehicle and the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A vehicle, comprising:
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a body; an image capture device having at least one field of view relative to an exterior of the body, the image capture device configured to acquire image data at time intervals to provide a plurality of images; at least one processing device configured to; determine at least one value indicative of a Time To Collision (TTC) based on an indicator of a relative acceleration between the vehicle and an object, wherein the indicator of the relative acceleration is determined based on the plurality of images; compare the at least one value indicative of the TTC with a threshold; and cause a vehicular response if the comparison between the at least one value indicative of the TTC and the threshold is indicative of a possible collision between the vehicle and the object. - View Dependent Claims (17, 18, 19, 20)
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21. A method for providing indication of a possible collision between a vehicle and an object, the method comprising:
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acquiring, using an image capture device, image data at time intervals to provide a plurality of images; determining at least one value indicative of a Time To Collision (TTC) based on an indicator of a relative acceleration between the vehicle and the object, wherein the indicator of the relative acceleration is determined based on the plurality of images; comparing the at least one value indicative of the TTC with a threshold; and causing a response if the comparison between the at least one value indicative of the TTC and the threshold indicates a possible collision between the vehicle and the object.
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Specification