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DE602005007571D1 - Automatische Detektion und Korrektur von Perspektivenverzerrung für Dokumentabbildungen - Google Patents

Automatische Detektion und Korrektur von Perspektivenverzerrung für Dokumentabbildungen

Info

Publication number
DE602005007571D1
DE602005007571D1 DE602005007571T DE602005007571T DE602005007571D1 DE 602005007571 D1 DE602005007571 D1 DE 602005007571D1 DE 602005007571 T DE602005007571 T DE 602005007571T DE 602005007571 T DE602005007571 T DE 602005007571T DE 602005007571 D1 DE602005007571 D1 DE 602005007571D1
Authority
DE
Germany
Prior art keywords
image
perspective distortion
document
captured
markers
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.)
Active
Application number
DE602005007571T
Other languages
English (en)
Inventor
Ufuk Orhun
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.)
Psion Systems Inc
Original Assignee
Psion Systems Inc
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
Priority claimed from CA2498484A external-priority patent/CA2498484C/en
Priority claimed from US11/082,588 external-priority patent/US20060210192A1/en
Application filed by Psion Systems Inc filed Critical Psion Systems Inc
Publication of DE602005007571D1 publication Critical patent/DE602005007571D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/80—Geometric correction
    • 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
    • G06V30/146—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Image Processing (AREA)
  • Character Input (AREA)
  • Image Input (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Facsimile Image Signal Circuits (AREA)
DE602005007571T 2005-02-25 2005-12-23 Automatische Detektion und Korrektur von Perspektivenverzerrung für Dokumentabbildungen Active DE602005007571D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2498484A CA2498484C (en) 2005-02-25 2005-02-25 Automatic perspective detection and correction for document imaging
US11/082,588 US20060210192A1 (en) 2005-03-17 2005-03-17 Automatic perspective distortion detection and correction for document imaging

Publications (1)

Publication Number Publication Date
DE602005007571D1 true DE602005007571D1 (de) 2008-07-31

Family

ID=36425252

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005007571T Active DE602005007571D1 (de) 2005-02-25 2005-12-23 Automatische Detektion und Korrektur von Perspektivenverzerrung für Dokumentabbildungen

Country Status (3)

Country Link
EP (2) EP1947605B1 (de)
AT (1) ATE398818T1 (de)
DE (1) DE602005007571D1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8194991B2 (en) * 2008-10-20 2012-06-05 Motorola Mobililty, Inc. Out-of-order coding
WO2010049415A1 (en) * 2008-10-29 2010-05-06 Schreiner Group Gmbh & Co. Kg Method and apparatus for determining the position of a noise-like pattern within an image
US8837834B2 (en) 2009-12-21 2014-09-16 St-Ericsson Sa Method and device for identifying an image acquisition feature of a digital image and apparatus for implementing such a device
BRPI1004814B1 (pt) * 2010-10-22 2020-11-10 Audaces Automação E Informática Industrial Ltda. sistema de marcadores visuais para fixação e digitalização de moldes de vestuário e método de digitalização de moldes de vestuário utilizando ditos marcadores visuais
CN102201053B (zh) * 2010-12-10 2013-07-24 上海合合信息科技发展有限公司 一种文本图像的切边方法
US8948508B2 (en) 2012-10-31 2015-02-03 Medsnap, Llc System and method of adaptive color correction for pill recognition in digital images
US10467714B2 (en) 2013-03-15 2019-11-05 Stevenson Systems, Inc. Interactive building stacking plan user interface
US9483754B2 (en) 2013-03-15 2016-11-01 Stevenson Systems, Inc. Interactive building stacking plans
DK3308350T3 (da) * 2015-06-12 2020-02-17 Moleskine S R L Fremgangsmåde til korrígering af et optaget billede, fremgangsmåde til udvælgelse af en tegning, der er skitseret på en side eller på to hosliggende sider af en notesbog, en relativ applikation til en smarttelefon, en indbundet notesbog og en indbundet planlægningskalender
CN107169494B (zh) * 2017-06-01 2018-07-20 中国人民解放军国防科学技术大学 基于手持终端的车牌图像分割校正方法
CN108229457A (zh) 2017-12-14 2018-06-29 深圳市商汤科技有限公司 证件的验证方法、装置、电子设备和存储介质
US11113826B2 (en) 2018-06-20 2021-09-07 Centric Software, Inc. Assisted material data collection
CN111402168B (zh) * 2020-03-19 2024-04-05 同盾控股有限公司 图像目标矫正方法及装置、终端、存储介质

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2270604B (en) * 1992-09-14 1996-06-19 Gerber Garment Technology Inc Scanning method and apparatus
JP2938338B2 (ja) * 1994-03-14 1999-08-23 株式会社デンソー 二次元コード
GB2312304B (en) * 1996-04-18 1999-12-29 Ibm Improvements in printing
DE19811286C2 (de) * 1998-03-16 2003-06-26 Plettac Ag Kamerabewegungssteuerung
JP4278800B2 (ja) 1999-10-27 2009-06-17 株式会社ミツトヨ 撮像空間の幾何学的歪み解消方法
US20010041073A1 (en) * 2000-02-03 2001-11-15 Noam Sorek Active aid for a handheld camera
DE10132929B4 (de) * 2001-07-06 2006-06-01 Funkwerk Plettac Electronic Gmbh Verfahren und Vorrichtung zur Steuerung von Schwenk-Neige-Bewegungen einer Kamera
JP2003168084A (ja) * 2001-11-30 2003-06-13 Sanyo Electric Co Ltd 本人認証システム及び方法
US6985631B2 (en) 2002-02-20 2006-01-10 Hewlett-Packard Development Company, L.P. Systems and methods for automatically detecting a corner in a digitally captured image
JP2004040395A (ja) 2002-07-02 2004-02-05 Fujitsu Ltd 画像歪み補正装置、方法及びプログラム
US7301564B2 (en) 2002-07-17 2007-11-27 Hewlett-Packard Development Company, L.P. Systems and methods for processing a digital captured image
JP4372439B2 (ja) * 2003-03-12 2009-11-25 ヤマハ発動機株式会社 電子部品実装装置

Also Published As

Publication number Publication date
EP1696383B1 (de) 2008-06-18
EP1696383A3 (de) 2006-10-11
EP1696383A2 (de) 2006-08-30
EP1947605B1 (de) 2019-03-06
EP1947605A2 (de) 2008-07-23
ATE398818T1 (de) 2008-07-15
EP1947605A3 (de) 2009-03-25

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