Systems and methods for processing a digitally captured image
First Claim
Patent Images
1. A method for processing a digitally captured image that comprises an imaged document, said method comprising:
- transforming said digitally captured image into a binary image;
searching said binary image to detect a plurality of edges of said imaged document; and
analyzing said detected plurality of edges to determine at least one corner associated with said imaged document;
wherein said transforming, searching, and analyzing are performed by programmable logic associated with a processor-based system.
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Abstract
In one embodiment, the present invention is related to a method for processing a digitally captured image that comprises an imaged document. The method may comprise: transforming the digitally captured image into a binary image; searching the binary image to detect a plurality of edges of the imaged document; and analyzing the detected plurality of edges to determine at least one corner associated with the imaged document; wherein the transforming, searching, and analyzing are performed by programmable logic associated with a processor-based system.
77 Citations
20 Claims
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1. A method for processing a digitally captured image that comprises an imaged document, said method comprising:
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transforming said digitally captured image into a binary image;
searching said binary image to detect a plurality of edges of said imaged document; and
analyzing said detected plurality of edges to determine at least one corner associated with said imaged document;
wherein said transforming, searching, and analyzing are performed by programmable logic associated with a processor-based system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for processing a digitally captured image that comprises an imaged document, said system comprising:
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means for transforming said digitally captured image into a binary image;
means for detecting edges of said imaged document from said binary image; and
means for estimating at least one corner location of said imaged document from said detected edges. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A computer-readable medium comprising executable instructions for processing a digitally captured image that comprises an imaged document, said computer-readable medium comprising:
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code for applying a luminance threshold to said digitally captured image to construct a binary image;
code for detecting edges of said imaged document from said binary image, wherein said code for detecting is operable to search from each respective margin of said binary image for a change in value in said binary image to detect said edges; and
code for determining at least one of corner location from said detected edges. - View Dependent Claims (18, 19, 20)
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Specification