Method and system for detecting uninsured motor vehicles
First Claim
1. A method for detecting an uninsured motor vehicle, said method comprising:
- continuously acquiring a video sequence at a predetermined frame rate and resolution by an image-capturing unit installed at a location to extract a video frame from said video sequence when a vehicle is detected at an optimal position for license plate recognition, wherein said image-capturing unit communicates with a video processing unit through a computer network, said video processing unit comprising a video frame triggering unit;
detecting and localizing said license plate on said extracted video frame to identify a sub-region in a region of interest of said video frame that includes a license plate;
performing a license plate recognition with respect to said license plate detected and localized on said extracted video frame utilizing a character level segmentation and an optical character recognition and assigning an overall confidence to a license plate recognition result with respect to said extracted video frame, said overall confidence indicative of a likelihood that said extracted video frame contains said license plate and that said extracted video frame is capable of eliminating at least some false alarms arising from said video frame triggering unit, and wherein said overall confidence is assigned based on a success of said character level segmentation and said optical character recognition; and
identifying insurance with respect to a detected vehicle from a vehicle insurance database after said detecting and localizing said license plate on said extracted video frame and after said performing said license plate recognition with respect to said license, plate detected and localized on said extracted video frame, and thereafter automatically sending a notification/ticket to a registrant of said vehicle, if said vehicle is identified as uninsured.
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Accused Products
Abstract
A video sequence can be continuously acquired at a predetermined frame rate and resolution by an image capturing unit installed at a location. A video frame can be extracted from the video sequence when a vehicle is detected at an optimal position for license plate recognition by detecting a blob corresponding to the vehicle and a virtual line on an image plane. The video frame can be pruned to eliminate a false positive and multiple frames with respect to a similar vehicle before transmitting the frame via a network. A license plate detection/localization can be performed on the extracted video frame to identify a sub-region with respect to the video frame that are most likely to contain a license plate. A license plate recognition operation can be performed and an overall confidence assigned to the license plate recognition result.
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Citations
20 Claims
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1. A method for detecting an uninsured motor vehicle, said method comprising:
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continuously acquiring a video sequence at a predetermined frame rate and resolution by an image-capturing unit installed at a location to extract a video frame from said video sequence when a vehicle is detected at an optimal position for license plate recognition, wherein said image-capturing unit communicates with a video processing unit through a computer network, said video processing unit comprising a video frame triggering unit; detecting and localizing said license plate on said extracted video frame to identify a sub-region in a region of interest of said video frame that includes a license plate; performing a license plate recognition with respect to said license plate detected and localized on said extracted video frame utilizing a character level segmentation and an optical character recognition and assigning an overall confidence to a license plate recognition result with respect to said extracted video frame, said overall confidence indicative of a likelihood that said extracted video frame contains said license plate and that said extracted video frame is capable of eliminating at least some false alarms arising from said video frame triggering unit, and wherein said overall confidence is assigned based on a success of said character level segmentation and said optical character recognition; and identifying insurance with respect to a detected vehicle from a vehicle insurance database after said detecting and localizing said license plate on said extracted video frame and after said performing said license plate recognition with respect to said license, plate detected and localized on said extracted video frame, and thereafter automatically sending a notification/ticket to a registrant of said vehicle, if said vehicle is identified as uninsured. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for detecting an uninsured motor vehicle, said system comprising:
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at least one processor; and memory comprising instructions stored therein, which when executed by said at least one processor, causes said at least one processor to perform operations comprising; continuously acquiring a video sequence at a predetermined frame rate and resolution by an image-capturing unit installed at a location to extract a video frame from said video sequence when a vehicle is detected at an optimal position for license plate recognition, wherein said image-capturing unit communicates with a video processing unit through a computer network, said video processing unit comprising a video frame triggering unit; detecting and localizing said license plate on said extracted video frame to identify a sub-region in a region of interest of said video frame that includes a license plate; performing a license plate recognition with respect to said license plate detected and localized on said extracted video frame utilizing a character level segmentation and an optical character recognition and assigning an overall confidence to a license plate recognition result with respect to said extracted video frame, said overall confidence indicative of a likelihood that said extracted video frame contains said license plate and that said extracted video frame is capable of eliminating at least some false alarms arising from said video frame triggering unit, and wherein said overall confidence is assigned based on a success of said character level segmentation and said optical character recognition; and identifying insurance with respect to a detected vehicle from a vehicle insurance database after said detecting and localizing said license plate on said extracted video frame and after said performing said license plate recognition with respect to said license plate detected and localized on said extracted video frame, and thereafter automatically sending a notification/ticket to a registrant of said vehicle, if said vehicle is identified as uninsured. - View Dependent Claims (17, 18, 19)
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20. A non-transitory machine-readable medium comprising instructions stored therein, which when executed by a machine, cause the machine to perform operations comprising:
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continuously acquiring a video sequence at a predetermined frame rate and resolution by an image-capturing unit installed at a location to extract a video frame from said video sequence when a vehicle is detected at an optimal position for license plate recognition, wherein said image-capturing unit communicates with a video processing unit through a computer network, said video processing unit comprising a video frame triggering unit; detecting and localizing said license plate on said extracted video frame to identify a sub-region in a region of interest of said video frame that includes a license plate; performing a license plate recognition with respect to said license plate detected and localized on said extracted video frame utilizing a character level segmentation and an optical character recognition and assigning an overall confidence to a license plate recognition result with respect to said extracted video frame, said overall confidence indicative of a likelihood that said extracted video frame contains said license plate and that said extracted video frame is capable of eliminating at least some false alarms arising from a video frame triggering unit, and wherein said overall confidence is assigned based on a success of said character level segmentation and said optical character recognition; and identifying insurance with respect to a detected vehicle from a vehicle insurance database after detecting and localizing said license plate on said extracted video frame and after performing said license plate recognition with respect to said license plate detected and localized on said extracted video frame, and thereafter automatically sending a notification/ticket to a registrant of said vehicle, if said vehicle is identified as uninsured.
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Specification