ATE428264T1 - Verfahren und vorrichtung fur die bildentzerrung - Google Patents

Verfahren und vorrichtung fur die bildentzerrung

Info

Publication number
ATE428264T1
ATE428264T1 AT01310372T AT01310372T ATE428264T1 AT E428264 T1 ATE428264 T1 AT E428264T1 AT 01310372 T AT01310372 T AT 01310372T AT 01310372 T AT01310372 T AT 01310372T AT E428264 T1 ATE428264 T1 AT E428264T1
Authority
AT
Austria
Prior art keywords
image
unit
image distortion
reference plane
distortion correction
Prior art date
Application number
AT01310372T
Other languages
English (en)
Inventor
Tadashi Araki
Guan Haike
Original Assignee
Ricoh Kk
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 Ricoh Kk filed Critical Ricoh Kk
Application granted granted Critical
Publication of ATE428264T1 publication Critical patent/ATE428264T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
    • 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
    • G06V30/146—Aligning or centring of the image pick-up or image-field
    • G06V30/1475—Inclination or skew detection or correction of characters or of image to be recognised
    • G06V30/1478—Inclination or skew detection or correction of characters or of image to be recognised of characters or characters lines
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0434—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207 specially adapted for scanning pages of a book

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Networks Using Active Elements (AREA)
  • Picture Signal Circuits (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Facsimile Image Signal Circuits (AREA)
AT01310372T 2000-12-14 2001-12-12 Verfahren und vorrichtung fur die bildentzerrung ATE428264T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000379895 2000-12-14
JP2001101279 2001-03-30
JP2001374490A JP2002358514A (ja) 2000-12-14 2001-12-07 画像歪み補正装置、プログラム、記憶媒体、画像歪み補正方法、画像読取装置および画像形成装置

Publications (1)

Publication Number Publication Date
ATE428264T1 true ATE428264T1 (de) 2009-04-15

Family

ID=27345440

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01310372T ATE428264T1 (de) 2000-12-14 2001-12-12 Verfahren und vorrichtung fur die bildentzerrung

Country Status (5)

Country Link
US (1) US7016081B2 (de)
EP (1) EP1215881B1 (de)
JP (1) JP2002358514A (de)
AT (1) ATE428264T1 (de)
DE (1) DE60138262D1 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4840830B2 (ja) * 2001-08-27 2011-12-21 株式会社リコー 画像歪み補正装置、画像読取装置、画像形成装置及びプログラム
US7548350B2 (en) * 2002-03-20 2009-06-16 International Business Machines Corporation Method and apparatus for interactively scanning images into a logical structure
JP4113804B2 (ja) * 2003-03-19 2008-07-09 株式会社リコー 画像処理装置及び画像処理プログラム
JP4200106B2 (ja) 2003-07-15 2008-12-24 株式会社リコー 画像処理装置、画像処理方法、コンピュータプログラム、及びコンピュータプログラムを記憶する記憶媒体
US7602995B2 (en) * 2004-02-10 2009-10-13 Ricoh Company, Ltd. Correcting image distortion caused by scanning
JP4162633B2 (ja) * 2004-06-30 2008-10-08 株式会社リコー 画像歪み補正装置、画像読取装置、画像形成装置、プログラム及び記憶媒体
DE102005018456A1 (de) * 2005-04-20 2006-11-02 HOS Hottinger Systems GbR (vertretungsberechtigter Gesellschafter: Walter Leo Pöhlandt, 68782 Brühl) Verfahren zum automatischen Erkennen von Reliefinformationen auf Oberflächen
JP2007201541A (ja) * 2006-01-23 2007-08-09 Ricoh Co Ltd 画像処理装置、撮像装置、画像処理方法、および画像処理プログラム
US8213687B2 (en) * 2006-04-28 2012-07-03 Hewlett-Packard Development Company, L.P. Image processing methods, image processing systems, and articles of manufacture
JP5009004B2 (ja) * 2006-07-31 2012-08-22 株式会社リコー 画像処理装置、撮像装置、画像処理方法、および画像処理プログラム
US8290293B2 (en) * 2006-10-17 2012-10-16 Samsung Electronics Co., Ltd. Image compensation in regions of low image contrast
WO2009021996A2 (en) * 2007-08-15 2009-02-19 I.R.I.S. S.A. Method for fast up-scaling of color images and method for interpretation of digitally acquired documents
JP4902568B2 (ja) * 2008-02-19 2012-03-21 キヤノン株式会社 電子文書生成装置、電子文書生成方法、コンピュータプログラム、および記憶媒体
US8107766B2 (en) * 2008-04-03 2012-01-31 Abbyy Software Ltd. Method and system for straightening out distorted text-lines on images
US20110052094A1 (en) * 2009-08-28 2011-03-03 Chunyu Gao Skew Correction for Scanned Japanese/English Document Images
KR101207127B1 (ko) * 2010-03-19 2012-11-30 전남대학교산학협력단 문자 인식 전처리 방법 및 장치
US20110299775A1 (en) * 2010-06-08 2011-12-08 International Business Machines Corporation Correcting page curl in scanned books
US12133816B2 (en) 2012-03-26 2024-11-05 Johnson & Johnson Surgical Vision, Inc. Phacoemulsification circuit
US11197778B2 (en) 2012-03-26 2021-12-14 Johnson & Johnson Surgical Vision, Inc. Tapered structure in a phacoemulsification device for node placement
US11191669B2 (en) 2012-03-26 2021-12-07 Johnson & Johnson Surgical Vision, Inc. Tapered structure in a phacoemulsification device for node placement
KR20140082428A (ko) 2012-12-24 2014-07-02 삼성전자주식회사 화상독취장치, 이미지 보정 방법 및 컴퓨터 판독가능 기록매체
US9025016B2 (en) * 2013-03-15 2015-05-05 Orcam Technologies Ltd. Systems and methods for audible facial recognition
CN106803269B (zh) * 2015-11-25 2020-03-10 富士通株式会社 对文档图像进行透视校正的方法和设备
JP6968647B2 (ja) * 2017-10-03 2021-11-17 キヤノン株式会社 スキャン画像にファイル名を設定するための装置、その制御方法及びプログラム

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5245676A (en) * 1989-12-21 1993-09-14 Xerox Corporation Determination of image skew angle from data including data in compressed form
EP0702320A1 (de) 1994-09-15 1996-03-20 Hewlett-Packard Company Schräglageermittlung
JPH0897975A (ja) * 1994-09-21 1996-04-12 Minolta Co Ltd 画像読み取り装置
US5825915A (en) * 1995-09-12 1998-10-20 Matsushita Electric Industrial Co., Ltd. Object detecting apparatus in which the position of a planar object is estimated by using hough transform
US5726775A (en) * 1996-06-26 1998-03-10 Xerox Corporation Method and apparatus for determining a profile of an image displaced a distance from a platen
KR100199476B1 (ko) * 1996-12-07 1999-06-15 윤종용 원고 크기 감지 장치 및 방법
JP3569794B2 (ja) * 1997-03-18 2004-09-29 ミノルタ株式会社 画像読取りシステム
JP3532385B2 (ja) 1997-07-24 2004-05-31 株式会社リコー 画像処理装置
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
US6636631B2 (en) * 1998-06-04 2003-10-21 Matsushita Electric Industrial Co., Ltd. Optical character reading method and system for a document with ruled lines and its application
JP3618056B2 (ja) 1999-02-23 2005-02-09 理想科学工業株式会社 画像処理装置

Also Published As

Publication number Publication date
EP1215881A1 (de) 2002-06-19
JP2002358514A (ja) 2002-12-13
EP1215881B1 (de) 2009-04-08
US20020084978A1 (en) 2002-07-04
DE60138262D1 (de) 2009-05-20
US7016081B2 (en) 2006-03-21

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Legal Events

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