System for detecting and warning an illegally parked vehicle
First Claim
1. A system for detecting and warning an illegally parked vehicle, comprising:
- a television (TV) camera for imaging a prescribed roadside zone where parking is prohibited at a prescribed time interval and producing a still TV image;
means for storing said produced still TV image;
means for storing a TV image of a prescribed pattern painted on said roadside zone without any vehicle present, as a reference image;
means for comparing said still TV image with said reference so as to periodically produce vehicle presence images indicative of a presence of a vehicle in said roadside zone based upon a shape and position of a portion of said prescribed pattern which is hidden by said vehicle and storing said vehicle presence information image;
means for detecting a move-off of said vehicle by comparing said vehicle presence images at a prescribed time interval;
means for warning said vehicle upon detecting that the vehicle has not moved off before expiration of a prescribed time; and
means for transmitting information of said vehicle to an external control center.
1 Assignment
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Accused Products
Abstract
In a system for detecting and warning an illegally parked vehicle a television (TV) camera images a prescribed roadside zone where parking is prohibited at a prescribed time interval. A produced still TV image is stored, and a TV image of a prescribed pattern painted on the roadside without any vehicle is stored as a reference image. The still image is compared with the reference image thereby to produce an image which carries information indicative of the presence of a vehicle in the zone and the vehicle presence information image is stored. The move-off of the vehicle is detected by comparing images of the vehicle presence information storage at a prescribed time interval. The vehicle is warned of illegal parking upon detecting that the vehicle does not move off before expiration of a prescribed time.
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Citations
4 Claims
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1. A system for detecting and warning an illegally parked vehicle, comprising:
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a television (TV) camera for imaging a prescribed roadside zone where parking is prohibited at a prescribed time interval and producing a still TV image; means for storing said produced still TV image; means for storing a TV image of a prescribed pattern painted on said roadside zone without any vehicle present, as a reference image; means for comparing said still TV image with said reference so as to periodically produce vehicle presence images indicative of a presence of a vehicle in said roadside zone based upon a shape and position of a portion of said prescribed pattern which is hidden by said vehicle and storing said vehicle presence information image; means for detecting a move-off of said vehicle by comparing said vehicle presence images at a prescribed time interval; means for warning said vehicle upon detecting that the vehicle has not moved off before expiration of a prescribed time; and
means for transmitting information of said vehicle to an external control center. - View Dependent Claims (2, 3)
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4. A method for detecting and warning an illegally parked vehicle, comprising the steps of:
- storing a pattern which is painted on a roadside;
detecting and storing a vehicle presence information of a position and shape of an illegally parked vehicle based on a change in the pattern caused by parking of the vehicle;detecting move-off of a vehicle based on a time-based comparison of the vehicle presence information;
emitting a warning to said vehicle if it has not been moved off before expiration of a prescribed time; andtransmitting information on the illegally parked vehicle to a control center.
- storing a pattern which is painted on a roadside;
Specification