EDGE DETECTION IMAGE CAPTURE AND RECOGNITION SYSTEM
First Claim
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1. A computer readable medium having computer-executable instructions for performing a method comprising:
- a. maintaining a database of predetermined identification values;
b. capturing an image containing alpha-numeric characters from an imagining device;
c. establishing a recognition value derived from the alpha-numeric characters within the image;
d. storing the recognition value;
e. comparing the recognition value to the predetermined identification values; and
f. creating an alert responsive to a match between the recognition value and a value in the database of license plate identification values.
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Abstract
Provided is a system and method of electronically identifying a license plate and comparing the results to a predetermined database. The software aspect of the system runs on standard PC hardware and can be linked to other applications or databases. It first uses a series of image manipulation techniques to detect, normalize and enhance the image of the number plate. Optical character recognition (OCR) is used to extract the alpha-numeric characters of the license plate. The recognized characters are then compared to databases containing information about the vehicle and/or owner.
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Citations
15 Claims
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1. A computer readable medium having computer-executable instructions for performing a method comprising:
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a. maintaining a database of predetermined identification values; b. capturing an image containing alpha-numeric characters from an imagining device; c. establishing a recognition value derived from the alpha-numeric characters within the image; d. storing the recognition value; e. comparing the recognition value to the predetermined identification values; and f. creating an alert responsive to a match between the recognition value and a value in the database of license plate identification values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13)
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10. A computer-implemented method of electronically identifying a license plate, comprising:
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a. capturing an image containing the license plate; b. localizing the license plate within the image; c. recognizing a plurality of characters in the license plate; and d. comparing the recognized plurality of characters to a predetermined database. - View Dependent Claims (11, 12)
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14. The method of claim further comprising:
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a. establishing a character substitution table comprising a plurality of commonly mistaken character reads; and b. creating a plurality of altered recognition values derived from the recognition value and the character substation table. - View Dependent Claims (15)
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Specification