TIRE DETECTION FOR ACCURATE VEHICLE SPEED ESTIMATION
First Claim
1. A computer-implemented method for determining the speed of a motor vehicle in a vehicle speed detection system, the method comprising:
- receiving a plurality of images of a motor vehicle traveling on a road, each of the images being separated in time by a known interval;
determining, for each of at least two of the images, a point of contact where a same tire of the vehicle contacts a surface of the road based, in part, on one or more identified features of the vehicle in one or more of the plurality of images; and
using the points of contact and the time interval separations to calculate a speed at which the vehicle is traveling on the road.
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Accused Products
Abstract
In some aspects of the present application, a computer-implemented method for determining the speed of a motor vehicle in a vehicle speed detection system is disclosed. The method can include receiving a plurality of images of a motor vehicle traveling on a road, each of the images being separated in time by a known interval; determining, for each of at least two of the images, a point of contact where a same tire of the vehicle contacts a surface of the road based, in part, on one or more identified features of the vehicle in one or more of the plurality of images; and using the points of contact and the time interval separations to calculate a speed at which the vehicle is traveling on the road.
44 Citations
19 Claims
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1. A computer-implemented method for determining the speed of a motor vehicle in a vehicle speed detection system, the method comprising:
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receiving a plurality of images of a motor vehicle traveling on a road, each of the images being separated in time by a known interval; determining, for each of at least two of the images, a point of contact where a same tire of the vehicle contacts a surface of the road based, in part, on one or more identified features of the vehicle in one or more of the plurality of images; and using the points of contact and the time interval separations to calculate a speed at which the vehicle is traveling on the road. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for determining the speed of a motor vehicle in a vehicle speed detection system, the system comprising:
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an imaging system; and a processor in communication with said video camera system and a memory, said processor executing machine readable instructions for performing; receiving images captured using the imaging system, each of the images being separated in time by a known interval; determining, for each of at least two of the images, a point of contact where a same tire of the vehicle contacts a surface of the road; using the points of contact and the time interval separations to calculate a speed at which the vehicle is traveling on the road. - View Dependent Claims (12, 13, 14, 15)
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16. A computer implemented method for determining the speed of a motor vehicle in a vehicle speed detection system, the method comprising:
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receiving a plurality of images of a moving vehicle, the images captured at known time intervals with each of the images being separated in time by a known interval, said images having been captured using an imaging system; determining, for each of at least two of the images, a point of contact where a same tire of the vehicle contacts a surface of the road; using the points of contact and the time interval separations to calculate a speed at which the vehicle is traveling on the road. - View Dependent Claims (17, 18, 19)
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Specification