System and method for identification of printed matter in an image
First Claim
Patent Images
1. A method of identifying a printed matter in an image, comprising:
- capturing a first image of a first printed matter, said first printed matter including a first reference form;
storing characteristics of a first plurality of pre-defined areas in said first printed matter in said first image, wherein each area of said first plurality of predefined areas is at a known location relative to said first reference form,capturing a second image, said second image including a second printed matter;
rectifying a portion of said second image, said portion of said second image including at least a first portion of said second printed matter;
identifying in said first portion of said second printed matter in said second image a second reference form and a second plurality of pre-defined areas, each area of said second plurality of pre-defined areas at a known location in said second printed matter relative to said second reference form;
comparinga characteristic of a first pre-defined area of said second plurality of pre-defined areas of said second printed matter in said second imagetothe stored characteristics of a first pre-defined area of said first plurality of pre-defined areas in said first printed matter in said first image,where the location of said first pre-defined area of said second plurality of pre-defined areas in said second printed matter relative to said second reference form in said second printed matter,corresponds tosaid location of said first pre-defined area of said first plurality of pre-defined areas in said first printed matter in said first image relative to said first reference form in said first image.
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Abstract
A system and method of identifying a printed matter in an image that includes the printed matter by rectifying the image, identifying a series of pre-defined areas in the image relative to a frame or other form in the printed matter in the image, and comparing a characteristic of the pre-defined area in the printed matter in the image, to a characteristic of a corresponding pre-defined area from a sample of printed matters.
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Citations
12 Claims
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1. A method of identifying a printed matter in an image, comprising:
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capturing a first image of a first printed matter, said first printed matter including a first reference form; storing characteristics of a first plurality of pre-defined areas in said first printed matter in said first image, wherein each area of said first plurality of predefined areas is at a known location relative to said first reference form, capturing a second image, said second image including a second printed matter; rectifying a portion of said second image, said portion of said second image including at least a first portion of said second printed matter; identifying in said first portion of said second printed matter in said second image a second reference form and a second plurality of pre-defined areas, each area of said second plurality of pre-defined areas at a known location in said second printed matter relative to said second reference form; comparing a characteristic of a first pre-defined area of said second plurality of pre-defined areas of said second printed matter in said second image to the stored characteristics of a first pre-defined area of said first plurality of pre-defined areas in said first printed matter in said first image, where the location of said first pre-defined area of said second plurality of pre-defined areas in said second printed matter relative to said second reference form in said second printed matter, corresponds to said location of said first pre-defined area of said first plurality of pre-defined areas in said first printed matter in said first image relative to said first reference form in said first image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12)
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9. A system comprising:
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an imager to capture a first image, said first image including a first printed matter; and
,a second image, said second image including a second printed matter, a memory to store a characteristic of a first point of a first plurality of points in said first printed matter and a characteristic of a first point of a second plurality of points in said second printed matter, and a processor, said processor configured to rectify a portion of said second image, said portion including said second printed matter;
calculate a location of said first point of said first plurality of points in said first printed matter relative to a printed form in said first image; andto calculate a location of said first point of said second plurality of points in said second printed matter relative to a printed form in said second image; identify said location of said first point of said first plurality of points with said location of said first point of said second plurality of points; and compare said characteristic of said first point of said second plurality of points in said second image to said characteristic of said first point of said first plurality of points in said first image. - View Dependent Claims (10, 11)
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Specification