Method and apparatus for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratios

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6275620
APP PUB NO 20010000710A1
SERIAL NO

09731584

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An improved technique for processing a color or gray scale pixel map representing a document is disclosed. The pixel map is decomposed into a three-plane representation, a reduced-resolution 'upper' plane, a reduced-resolution 'lower' plane, and a high-resolution binary selector plane. The 'upper' and 'lower' planes contain the color or gray scale for the page as well as the continuous tone pictures that are contained on the page. The selector plane stores information for selecting from either the foreground plane or background plane during decompression. Information contained in the selector plane is first used to pre-process the upper and lower planes to reduce the amount of data on each of the other two planes that will be subjected to further processing. Each of the pre-processed planes is compressed using a compression technique optimal for the type of data that resides upon it.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
XEROX CORPORATIONSTAMFORD, CT13750

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Buckley, Robert R Rochester, NY 41 768
de, Queiroz Ricardo L Pittsford, NY 44 754
Eschbach, Reiner Webster, NY 209 3888
Fuss, William A Rochester, NY 40 1133

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
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FUJI XEROX CO., LTD. (1)
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NUANCE COMMUNICATIONS, INC. (1)
* 5778092 Method and apparatus for compressing color or gray scale documents 159 1996
 
CANON KABUSHIKI KAISHA (1)
* 5864638 Image data processing using bi-level and multi-level value data 18 1996
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
9445108 Document compression with neighborhood biased pixel labeling 0 2015
 
SHARP KABUSHIKI KAISHA (11)
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* 2004/0179,742 Compound image compression method and apparatus 6 2003
8411319 Methods and systems for concurrent rendering of graphic-list elements 1 2009
8339653 Methods and systems for rendering data based on overlap characteristics 2 2009
8339670 Methods and systems for rendering data based on graphic-list partitioning 0 2009
8339671 Methods and systems for rendering data by partitioning a graphics list 1 2009
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* 2010/0245,920 Methods and Systems for Rendering Data 0 2009
* 2010/0245,917 Methods and Systems for Rendering Data 8 2009
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GENERAL ELECTRIC COMPANY (2)
7548657 Adaptive video compression of graphical user interfaces using application metadata 42 2005
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SHARP LABORATORIES OF AMERICA, INC. (2)
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KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. (1)
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XEROX CORPORATION (6)
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* 2010/0157,377 UV FLUORESCENCE ENCODED BACKGROUND IMAGES USING ADAPTIVE HALFTONING INTO DISJOINT SETS 5 2008
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9230161 Multiple layer block matching method and system for image denoising 0 2013
 
Pitney Bowes Inc. (1)
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ORACLE AMERICA, INC. (1)
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HUGHES ELECTRONICS CORPORATION (1)
* 2004/0223,084 Methods and apparatus for border processing in video distribution systems 0 2003
 
BROTHER KOGYO KABUSHIKI KAISHA (1)
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MICROSOFT TECHNOLOGY LICENSING, LLC (1)
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KONINKLIJKE PHILIPS ELECTRONICS N.V. (2)
8437579 Image processing system for automatic adaptation of a 3-D mesh model onto a 3-D surface of an object 0 2003
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COGNEX CORPORATION (1)
6490375 Methods for finding peaks in a characteristic surface of an image 4 2001
 
CANON KABUSHIKI KAISHA (4)
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* Cited By Examiner