SYSTEM AND METHOD FOR OPTICAL LICENSE PLATE MATCHING
First Claim
1. A method for reading license plate characters, comprising:
- capturing a license plate imageprocessing the image with optical character recognition equipment to produce an OCR result;
associating said OCR result with a confidence level;
presenting said image for a first manual review to produce a manual result without displaying to the reviewer said OCR result;
if said manual result matches said OCR result, determining that said OCR result is correct;
if said manual result does not match said OCR result, presenting said image for a second manual review by a different reviewer than said first manual reviewer to produce a second manual result;
if said second manual result matches said OCR result, determining that said OCR result is correct;
if said second manual result does not match said OCR result, presenting said image for a third manual review by a different reviewer than said first and second manual reviews;
if said third manual result matches said OCR result, determining that said OCR result is correct;
if said third manual result does not match said OCR result, presenting said image for a supervisory review by a different reviewer than said first, second and third manual reviews.
4 Assignments
0 Petitions
Accused Products
Abstract
An automated system and method are disclosed for reading license plate characters and associating the image with a vehicle by comparing to existing images and supplementing the automated system with manual review, comprising: capturing a first license plate image; processing the first image with optical character recognition equipment to produce an OCR result; associating the OCR result with a confidence level. If the confidence level is above a predetermined threshold, determining whether the OCR result matches a previously-obtained OCR result and if the confidence level is not above the predetermined threshold, presenting the first image for a manual review to produce a manual result.
58 Citations
9 Claims
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1. A method for reading license plate characters, comprising:
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capturing a license plate image processing the image with optical character recognition equipment to produce an OCR result; associating said OCR result with a confidence level; presenting said image for a first manual review to produce a manual result without displaying to the reviewer said OCR result; if said manual result matches said OCR result, determining that said OCR result is correct; if said manual result does not match said OCR result, presenting said image for a second manual review by a different reviewer than said first manual reviewer to produce a second manual result; if said second manual result matches said OCR result, determining that said OCR result is correct; if said second manual result does not match said OCR result, presenting said image for a third manual review by a different reviewer than said first and second manual reviews; if said third manual result matches said OCR result, determining that said OCR result is correct; if said third manual result does not match said OCR result, presenting said image for a supervisory review by a different reviewer than said first, second and third manual reviews.
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2. A method for reading license plate characters, comprising:
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capturing a first license plate image; processing said first image with optical character recognition equipment to produce an OCR result; associating said OCR result with a confidence level; if said confidence level is above a predetermined threshold, determining whether said OCR result matches a previously-obtained OCR result and if said confidence level is not above said predetermined threshold, presenting said image for a manual review to produce a manual result. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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Specification