Document scanning method, system, and device having sets of parallel lines as background
AssigneeABBYY Development LLC
InventorAndrey Isaev
Life of this patent
Estimating the term…
Abstract
Methods and devices are described for detecting boundaries of documents on flatbed and multi-function scanners on a first pass of a carriage assembly, and then performing a high resolution scan on a second pass. High resolution images of documents can then be obtained with little or no interaction normally necessary to identify areas of interest on the scanner bed. Patterns on the scanner cover or lid facilitate not only edge determination, but orientation of text and other objects, and straightening of images in preparation for OCR and related functions. Electronic images and files derived from paper documents may be automatically cropped, deskewed, subjected to OCR, and named consistent with content or other information derived from them.
Claims13
A method for scanning a document, the method comprising:
- positioning a document from a feeder onto a transparent bed of a scanning device;
- generating an image of the document and at least a portion of contents of a background behind the document;
- and
- distinguishing the background from the document based on the contents of the background in the image by comparing a representation of the image to a representation of a portion of the background stored in an electronic storage component, wherein
- the background comprises a first set of parallel lines and a second set of parallel lines, and
- wherein the first set of parallel lines are parallel to each other and are spaced unevenly from each other and the second set of parallel lines are parallel to each other and are spaced unevenly from each other.
A system comprising:
- a data processing apparatus;
- and
- a machine-readable storage device operatively coupled to the data processing apparatus and having instructions stored thereon configured to be executed by the data processing apparatus, wherein the data processing apparatus is configured to:
- position a document from a feeder onto a transparent bed of a scanning device;
- generate an image of the document and at least a portion of contents of a background behind the document;
- and
- distinguish the background from the document based on the contents of the background in the image by a comparison between a representation of the image and a representation of a portion of the background stored in an electronic storage component wherein
- the background comprises a first set of parallel lines and a second set of parallel lines, and
- wherein the first set of parallel lines are parallel to each other and are spaced unevenly from each other and the second set of parallel lines are parallel to each other and are spaced unevenly from each other.
A non-transitory storage device having instructions stored thereon that, when executed by data processing apparatus, cause the data processing apparatus to perform operations, wherein the instructions comprise:
- instructions to position a document from a feeder onto a transparent bed of a scanning device;
- instructions to generate an image using the document and at least a portion of contents of a background behind the document;
- and
- instructions to distinguish the background from the document based on the contents of the background in the image by a comparison between a representation of the image and a representation of a portion of the background stored in an electronic storage component wherein
- the background comprises a first set of parallel lines and a second set of parallel lines, and
- wherein the first set of parallel lines are parallel to each other and are spaced unevenly from each other and the second set of parallel lines are parallel to each other and are spaced unevenly from each other.
Dependencies are inferred from the claim text.