DE69225541T2 - Bildverarbeitung - Google Patents

Bildverarbeitung

Info

Publication number
DE69225541T2
DE69225541T2 DE69225541T DE69225541T DE69225541T2 DE 69225541 T2 DE69225541 T2 DE 69225541T2 DE 69225541 T DE69225541 T DE 69225541T DE 69225541 T DE69225541 T DE 69225541T DE 69225541 T2 DE69225541 T2 DE 69225541T2
Authority
DE
Germany
Prior art keywords
image processing
image
processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69225541T
Other languages
English (en)
Other versions
DE69225541D1 (de
Inventor
Daniel P Huttenlocher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of DE69225541D1 publication Critical patent/DE69225541D1/de
Publication of DE69225541T2 publication Critical patent/DE69225541T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/14—Image acquisition
    • G06V30/148—Segmentation of character regions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)
  • Character Discrimination (AREA)
  • Image Analysis (AREA)
DE69225541T 1991-07-30 1992-07-30 Bildverarbeitung Expired - Lifetime DE69225541T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73795591A 1991-07-30 1991-07-30

Publications (2)

Publication Number Publication Date
DE69225541D1 DE69225541D1 (de) 1998-06-25
DE69225541T2 true DE69225541T2 (de) 1998-11-26

Family

ID=24965966

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69225541T Expired - Lifetime DE69225541T2 (de) 1991-07-30 1992-07-30 Bildverarbeitung

Country Status (4)

Country Link
US (1) US5513277A (de)
EP (1) EP0526196B1 (de)
JP (1) JP3361124B2 (de)
DE (1) DE69225541T2 (de)

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US5828771A (en) * 1995-12-15 1998-10-27 Xerox Corporation Method and article of manufacture for determining whether a scanned image is an original image or fax image
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JP3471578B2 (ja) * 1997-08-29 2003-12-02 シャープ株式会社 行方向判定装置、画像傾き検出装置及び画像傾き補正装置
US5995661A (en) * 1997-10-08 1999-11-30 Hewlett-Packard Company Image boundary detection for a scanned image
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US6741745B2 (en) 2000-12-18 2004-05-25 Xerox Corporation Method and apparatus for formatting OCR text
US7333798B2 (en) 2002-08-08 2008-02-19 Value Added Communications, Inc. Telecommunication call management and monitoring system
US7385606B2 (en) * 2002-12-18 2008-06-10 Microsoft Corporation International font measurement system and method
RU2323470C2 (ru) * 2002-12-18 2008-04-27 Майкрософт Корпорейшн Система и способ автоматического измерения высоты строки, размера и других параметров международного шрифта
US7271806B2 (en) * 2002-12-18 2007-09-18 Microsoft Corporation International automatic line height system and method
US20040119714A1 (en) * 2002-12-18 2004-06-24 Microsoft Corporation International automatic font size system and method
US7788258B1 (en) * 2004-06-21 2010-08-31 Google Inc. Automatic determination of whether a document includes an image gallery
NO20052656D0 (no) * 2005-06-02 2005-06-02 Lumex As Geometrisk bildetransformasjon basert pa tekstlinjesoking
US8164762B2 (en) * 2006-09-07 2012-04-24 Xerox Corporation Intelligent text driven document sizing
KR100833346B1 (ko) * 2007-01-03 2008-05-28 (주)폴리다임 디스플레이 장치에 표시된 문자 이미지의 픽셀 단위 가로폭 측정 방법
JP4396757B2 (ja) * 2007-10-22 2010-01-13 ソニー株式会社 ノイズ補正回路、撮像装置及びノイズ補正方法
US8917935B2 (en) 2008-05-19 2014-12-23 Microsoft Corporation Detecting text using stroke width based text detection
US8320674B2 (en) 2008-09-03 2012-11-27 Sony Corporation Text localization for image and video OCR
WO2011017746A1 (en) * 2009-08-11 2011-02-17 Someones Group Intellectual Property Holdings Pty Ltd Method, system and controller for searching a database
ATE546011T1 (de) * 2009-09-09 2012-03-15 European Central Bank Verfahren zur erzeugung eines sicherheitsbildes auf zwei ebenen für banknoten
US8194983B2 (en) * 2010-05-13 2012-06-05 Hussein Khalid Al-Omari Method and system for preprocessing an image for optical character recognition
US8494284B2 (en) * 2011-11-21 2013-07-23 Nokia Corporation Methods and apparatuses for facilitating detection of text within an image
US9697431B2 (en) 2013-08-16 2017-07-04 Conduent Business Services, Llc Mobile document capture assist for optimized text recognition
US9396404B2 (en) 2014-08-04 2016-07-19 Datalogic ADC, Inc. Robust industrial optical character recognition
US9392127B1 (en) * 2015-01-12 2016-07-12 Xerox Corporation Document production system having automatic adjustment of content to fit the printable area of a pre-printed media
US9798948B2 (en) 2015-07-31 2017-10-24 Datalogic IP Tech, S.r.l. Optical character recognition localization tool
US9563961B1 (en) 2016-01-19 2017-02-07 Xerox Corporation Method and system for image processing
US10685261B2 (en) * 2018-06-11 2020-06-16 GM Global Technology Operations LLC Active segmention of scanned images based on deep reinforcement learning for OCR applications
US11386636B2 (en) 2019-04-04 2022-07-12 Datalogic Usa, Inc. Image preprocessing for optical character recognition
CN110210470B (zh) * 2019-06-05 2023-06-23 复旦大学 商品信息图像识别系统

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US5054094A (en) * 1990-05-07 1991-10-01 Eastman Kodak Company Rotationally impervious feature extraction for optical character recognition
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US5253307A (en) * 1991-07-30 1993-10-12 Xerox Corporation Image analysis to obtain typeface information
US5245674A (en) * 1991-07-30 1993-09-14 Xerox Corporation Image processing using distance as a function of direction

Also Published As

Publication number Publication date
US5513277A (en) 1996-04-30
JPH0612523A (ja) 1994-01-21
EP0526196A2 (de) 1993-02-03
EP0526196B1 (de) 1998-05-20
EP0526196A3 (de) 1994-03-23
DE69225541D1 (de) 1998-06-25
JP3361124B2 (ja) 2003-01-07

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