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US 2013/0075473 A1Published application
Document capture with imaging-based bar code readers
AssigneeSymbol Technologies, Inc.
InventorsDayou Wang, Joseph Cai, Michelle X. Wang
Life of this patent
Estimating the term…
Abstract
A method includes (1) obtaining a captured image of a document physically placed on a background having specifically designed patterns; (2) storing into a memory the captured image that includes an image of the document and an image of the background surrounding the document; and (3) analyzing the captured image to search for a boundary of the document in the captured image, where step of analyzing includes distinguishing the image of the background from the image of the document.
Claims24
A method comprising:
- obtaining a captured image of a document physically placed on a background having specifically designed patterns, the captured image being obtained with an imaging arrangement that comprises an imaging sensor having an array of photosensitive elements, a lens system operative to focus light reflected from the document onto the array of photosensitive elements in the imaging sensor, and wherein the specifically designed patterns of the background is distinguishable from any pattern found on the document;
- storing into a memory the captured image obtained by the imaging sensor, the captured image including an image of the document and an image of the background surrounding the document;
- and
- analyzing the captured image to search for a boundary of the document in the captured image, wherein said analyzing includes distinguishing the image of the background from the image of the document.
1 more element
An apparatus comprising:
- an imaging sensor having an array of photosensitive elements for obtaining a captured image of a document physically placed on a background having specifically designed patterns that are distinguishable from any pattern found on the document;
- a lens system operative to focus light reflected from the document onto the array of photosensitive elements in the imaging sensor;
- and
- a processor configured for
- storing into a memory the captured image of the document obtained by the imaging sensor, the captured image including an image of the document and an image of the background surrounding the document, and
- analyzing the captured image to search for a boundary of the document in the captured image, wherein said analyzing includes distinguishing the image of the background from the image of the document.
3 more elements
Dependencies are inferred from the claim text.