JP5355621B2 - 光学式文字認識用に画像を前処理するための方法およびシステム - Google Patents

光学式文字認識用に画像を前処理するための方法およびシステム Download PDF

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Publication number
JP5355621B2
JP5355621B2 JP2011107233A JP2011107233A JP5355621B2 JP 5355621 B2 JP5355621 B2 JP 5355621B2 JP 2011107233 A JP2011107233 A JP 2011107233A JP 2011107233 A JP2011107233 A JP 2011107233A JP 5355621 B2 JP5355621 B2 JP 5355621B2
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image
word
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Japanese (ja)
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JP2011243201A5 (enExample
JP2011243201A (ja
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フセイン・ハリド・アル−オマリ
モハメド・スレイマン・ホルシード
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King Abdulaziz City for Science and Technology KACST
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King Abdulaziz City for Science and Technology KACST
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/40—Document-oriented image-based pattern recognition
    • G06V30/41—Analysis of document content
    • G06V30/414—Extracting the geometrical structure, e.g. layout tree; Block segmentation, e.g. bounding boxes for graphics or text
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V30/15—Cutting or merging image elements, e.g. region growing, watershed or clustering-based techniques
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

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  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Graphics (AREA)
  • Geometry (AREA)
  • Artificial Intelligence (AREA)
  • Character Input (AREA)
  • Character Discrimination (AREA)
JP2011107233A 2010-05-13 2011-05-12 光学式文字認識用に画像を前処理するための方法およびシステム Expired - Fee Related JP5355621B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/779,152 US8194983B2 (en) 2010-05-13 2010-05-13 Method and system for preprocessing an image for optical character recognition
US12/779,152 2010-05-13

Publications (3)

Publication Number Publication Date
JP2011243201A JP2011243201A (ja) 2011-12-01
JP2011243201A5 JP2011243201A5 (enExample) 2013-07-18
JP5355621B2 true JP5355621B2 (ja) 2013-11-27

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JP2011107233A Expired - Fee Related JP5355621B2 (ja) 2010-05-13 2011-05-12 光学式文字認識用に画像を前処理するための方法およびシステム

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US (1) US8194983B2 (enExample)
EP (1) EP2386985A3 (enExample)
JP (1) JP5355621B2 (enExample)

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US8917275B2 (en) * 2010-06-14 2014-12-23 Microsoft Corporation Automated contrast verifications
US9053361B2 (en) 2012-01-26 2015-06-09 Qualcomm Incorporated Identifying regions of text to merge in a natural image or video frame
US9064191B2 (en) 2012-01-26 2015-06-23 Qualcomm Incorporated Lower modifier detection and extraction from devanagari text images to improve OCR performance
US9262699B2 (en) 2012-07-19 2016-02-16 Qualcomm Incorporated Method of handling complex variants of words through prefix-tree based decoding for Devanagiri OCR
US9183458B2 (en) 2012-07-19 2015-11-10 Qualcomm Incorporated Parameter selection and coarse localization of interest regions for MSER processing
US9076242B2 (en) 2012-07-19 2015-07-07 Qualcomm Incorporated Automatic correction of skew in natural images and video
US9141874B2 (en) 2012-07-19 2015-09-22 Qualcomm Incorporated Feature extraction and use with a probability density function (PDF) divergence metric
US9047540B2 (en) 2012-07-19 2015-06-02 Qualcomm Incorporated Trellis based word decoder with reverse pass
US20140268250A1 (en) * 2013-03-15 2014-09-18 Mitek Systems, Inc. Systems and methods for receipt-based mobile image capture
US9330331B2 (en) 2013-11-11 2016-05-03 Wipro Limited Systems and methods for offline character recognition
US9704072B2 (en) 2015-09-28 2017-07-11 Toshiba Tec Kabushiki Kaisha Printer, method, and program for printing Arabic characters
CN106940799B (zh) 2016-01-05 2020-07-24 腾讯科技（深圳）有限公司 文本图像处理方法和装置
CN109964508B (zh) * 2016-10-05 2021-11-19 瑞典爱立信有限公司 在fembms系统中传送和获得系统信息的方法、网络节点和无线设备
JP7039882B2 (ja) * 2017-08-16 2022-03-23 富士フイルムビジネスイノベーション株式会社 画像解析装置及び画像解析プログラム
US11210507B2 (en) 2019-12-11 2021-12-28 Optum Technology, Inc. Automated systems and methods for identifying fields and regions of interest within a document image
US11227153B2 (en) * 2019-12-11 2022-01-18 Optum Technology, Inc. Automated systems and methods for identifying fields and regions of interest within a document image
JP7137170B1 (ja) 2021-03-22 2022-09-14 楽天グループ株式会社 情報処理装置、情報処理方法およびプログラム
JP7344916B2 (ja) * 2021-03-22 2023-09-14 楽天グループ株式会社 情報処理装置、情報処理方法およびプログラム

Family Cites Families (10)

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JP3361124B2 (ja) * 1991-07-30 2003-01-07 ゼロックス・コーポレーション テキストを含む２次元画像上での画像処理方法と画像処理装置
US6005976A (en) * 1993-02-25 1999-12-21 Fujitsu Limited Image extraction system for extracting patterns such as characters, graphics and symbols from image having frame formed by straight line portions
US5513304A (en) * 1993-04-19 1996-04-30 Xerox Corporation Method and apparatus for enhanced automatic determination of text line dependent parameters
JP3445394B2 (ja) * 1993-12-17 2003-09-08 ゼロックス・コーポレーション 少なくとも二つのイメージセクションの比較方法
US5668891A (en) * 1995-01-06 1997-09-16 Xerox Corporation Methods for determining font attributes of characters
JPH09130516A (ja) * 1995-10-30 1997-05-16 Minolta Co Ltd 原稿画像の天地を認識できる画像処理装置
JPH08317195A (ja) * 1995-05-23 1996-11-29 Minolta Co Ltd 画像形成装置
US5889884A (en) * 1995-05-23 1999-03-30 Minolta Co., Ltd. Image forming apparatus capable of recognizing top and bottom of document image
CA2166248C (en) * 1995-12-28 2000-01-04 Abdel Naser Al-Karmi Optical character recognition of handwritten or cursive text
US7724957B2 (en) * 2006-07-31 2010-05-25 Microsoft Corporation Two tiered text recognition

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Publication number Publication date
US8194983B2 (en) 2012-06-05
EP2386985A3 (en) 2013-08-14
US20110280477A1 (en) 2011-11-17
EP2386985A2 (en) 2011-11-16
JP2011243201A (ja) 2011-12-01

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