BUS LANE INFRACTION DETECTION METHOD AND SYSTEM
First Claim
1. A computer implemented method of estimating a trajectory of a moving vehicle captured with an image capturing device and determining if the moving vehicle is moving in one of a permitted manner and an unpermitted manner, the image capturing device oriented to include a field of view spanning a vehicle detection target region, the method comprising:
- a) acquiring a first set of motion vectors based on a plurality of frames captured with the image capturing device, the first set of motion vectors including a coherent cluster of motion vectors representative of the moving vehicle detected within the vehicle detection target region at a first location;
b) acquiring a second set of motion vectors based on the plurality of frames captured with the image capturing device, the second set of motion vectors including a coherent cluster of motion vectors representative of the moving vehicle detected within the vehicle detection target region at a second location different from the first location;
c) estimating a trajectory of the moving vehicle detection within the vehicle detection target region based on the first location and the second location; and
d) analyzing the estimated trajectory of the moving vehicle to determine if the moving vehicle is moving in one of the permitted manner and the unpermitted manner.
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Accused Products
Abstract
This disclosure provides methods and systems for form a trajectory of a moving vehicle captured with an image capturing device. According to one exemplary embodiment, a method forms a trajectory of a moving vehicle and determines if the vehicle is moving in one of a permitted manner and an unpermitted manner relative to the appropriate motor vehicle lane restriction laws and/or regulations.
36 Citations
25 Claims
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1. A computer implemented method of estimating a trajectory of a moving vehicle captured with an image capturing device and determining if the moving vehicle is moving in one of a permitted manner and an unpermitted manner, the image capturing device oriented to include a field of view spanning a vehicle detection target region, the method comprising:
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a) acquiring a first set of motion vectors based on a plurality of frames captured with the image capturing device, the first set of motion vectors including a coherent cluster of motion vectors representative of the moving vehicle detected within the vehicle detection target region at a first location; b) acquiring a second set of motion vectors based on the plurality of frames captured with the image capturing device, the second set of motion vectors including a coherent cluster of motion vectors representative of the moving vehicle detected within the vehicle detection target region at a second location different from the first location; c) estimating a trajectory of the moving vehicle detection within the vehicle detection target region based on the first location and the second location; and d) analyzing the estimated trajectory of the moving vehicle to determine if the moving vehicle is moving in one of the permitted manner and the unpermitted manner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An image processing system comprising:
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an image capturing device oriented to include a field of view spanning a vehicle detection target region, and an image processor operatively associated with the image capturing device, the image processor configured to perform a method of estimating a trajectory of a moving vehicle captured with the image capturing device and determining if the moving vehicle is moving in one of a permitted manner and an unpermitted manner, the method comprising; a) acquiring a first set of motion vectors based on a plurality of frames captured with the image capturing device, the first set of motion vectors including a coherent cluster of motion vectors representative of the moving vehicle detected within the vehicle detection target region at a first location; b) acquiring a second set of motion vectors based on the plurality of frames captured with the image capturing device, the second set of motion vectors including a coherent cluster of motion vectors representative of the moving vehicle detected within the vehicle detection target region at a second location different from the first location; c) estimating a trajectory of the moving vehicle detection within the vehicle detection target region based on the first location and the second location; and d) analyzing the estimated trajectory of the moving vehicle to determine if the moving vehicle is moving in one of the permitted manner and the unpermitted manner. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A computer implemented method of detecting a moving vehicle violation of a motor vehicle lane restriction, the moving vehicle captured with an image capturing device, the image capturing device oriented to include a field of view spanning a vehicle detection target region, the method comprising:
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a) acquiring compressed video of a moving vehicle captured with the image capturing device, the compressed video including compression type motion vectors representing movement of the moving vehicle; b) classifying the moving vehicle as one or more of a large size vehicle, a relatively small size vehicle, a truck, a bus, a non-bus vehicle, a passenger vehicle and a motorcycle; c) estimating a trajectory of the moving vehicle based on a track of the moving vehicle represented as a plurality of temporal spaced coherent clusters of motion vectors associated with the moving vehicle; and d) analyzing the moving vehicle classification and the estimated trajectory to determine if the moving vehicle is in violation of the motor vehicle lane restriction. - View Dependent Claims (22, 23, 24, 25)
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Specification