Method and apparatus for using an enlargement operation to reduce visually detected defects in an image

US9225876B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9225876-B2
Application numberUS-201414317246-A
CountryUS
Kind codeB2
Filing dateJun 27, 2014
Priority dateSep 25, 2013
Publication dateDec 29, 2015
Grant dateDec 29, 2015

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Abstract

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Systems and method for improving the quality of document images are provided. One method includes identifying a plurality of image fragments within a previously received document image that includes text. The method further includes separating the plurality of image fragments into a plurality of classes. Each class includes a subset of the plurality of image fragments that are substantially similar to one another. The method further includes, for each of the plurality of classes: (1) processing a class of image fragments to generate a combined and substantially enlarged image fragment for the class; and (2) filtering the combined and substantially enlarged image fragment to generate a filtered image fragment for the class. The method further includes generating an improved document image by replacing or modifying the image fragments within the document image based on the filtered image fragments.

First claim

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What is claimed is: 1. A method for reducing visually detectable defects in a document image, the method comprising: performing a scaling procedure on a portion of the document image resulting in an interim image portion; displaying the interim image portion; initiating a full process of improvement of the portion of the document image comprising identifying, using a computing device comprising one or more processors, a plurality of image fragments within the portion of…

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What does patent US9225876B2 cover?
Systems and method for improving the quality of document images are provided. One method includes identifying a plurality of image fragments within a previously received document image that includes text. The method further includes separating the plurality of image fragments into a plurality of classes. Each class includes a subset of the plurality of image fragments that are substantially sim…
Who is the assignee on this patent?
Kostyukov Mikhail, Zagaynov Ivan, Abbyy Dev Llc
What technology area does this patent fall under?
Primary CPC classification H04N1/393. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Dec 29 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).