ATE334452T1 - Verfahren zur korrektur der verzerrung beim abtasten eines optischen codes - Google Patents

Verfahren zur korrektur der verzerrung beim abtasten eines optischen codes

Info

Publication number
ATE334452T1
ATE334452T1 AT98830668T AT98830668T ATE334452T1 AT E334452 T1 ATE334452 T1 AT E334452T1 AT 98830668 T AT98830668 T AT 98830668T AT 98830668 T AT98830668 T AT 98830668T AT E334452 T1 ATE334452 T1 AT E334452T1
Authority
AT
Austria
Prior art keywords
points
coordinates
code
image
notable
Prior art date
Application number
AT98830668T
Other languages
English (en)
Inventor
Elena Brunelli
Marco Bottazzi
Original Assignee
Datalogic Spa
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 Datalogic Spa filed Critical Datalogic Spa
Application granted granted Critical
Publication of ATE334452T1 publication Critical patent/ATE334452T1/de

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
    • G06V30/146—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; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G06K7/1404—Methods for optical code recognition
    • G06K7/146—Methods for optical code recognition the method including quality enhancement steps
    • G06K7/1473—Methods for optical code recognition the method including quality enhancement steps error correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Image Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Optical Communication System (AREA)
AT98830668T 1998-11-06 1998-11-06 Verfahren zur korrektur der verzerrung beim abtasten eines optischen codes ATE334452T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98830668A EP0999519B1 (de) 1998-11-06 1998-11-06 Verfahren zur Korrektur der Verzerrung beim Abtasten eines optischen Codes

Publications (1)

Publication Number Publication Date
ATE334452T1 true ATE334452T1 (de) 2006-08-15

Family

ID=8236871

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98830668T ATE334452T1 (de) 1998-11-06 1998-11-06 Verfahren zur korrektur der verzerrung beim abtasten eines optischen codes

Country Status (4)

Country Link
US (1) US6758399B1 (de)
EP (1) EP0999519B1 (de)
AT (1) ATE334452T1 (de)
DE (1) DE69835358T2 (de)

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US6851608B1 (en) * 2002-03-07 2005-02-08 Commerciant, L.P. System and method for uncontrolled velocity scanning
JP4301775B2 (ja) * 2002-07-18 2009-07-22 シャープ株式会社 ２次元コード読み取り装置，２次元コード読み取り方法，２次元コード読み取りプログラム及び該プログラムの記録媒体
FR2868185B1 (fr) * 2004-03-23 2006-06-30 Realeyes3D Sa Procede d'extraction de donnees brutes d'une image resultant d'une prise de vue
US20060210192A1 (en) * 2005-03-17 2006-09-21 Symagery Microsystems Inc. Automatic perspective distortion detection and correction for document imaging
US7383994B2 (en) * 2005-05-03 2008-06-10 Datalogic Scanning, Inc. Methods and systems for forming images of moving optical codes
EP1904952A2 (de) * 2005-05-23 2008-04-02 Nextcode Corporation Effiziente finder-muster und verfahren zur anwendung auf 2d-machine-vision-probleme
US7412106B1 (en) 2005-06-25 2008-08-12 Cognex Technology And Investment Corporation Methods for locating and decoding distorted two-dimensional matrix symbols
US7878402B2 (en) * 2005-12-20 2011-02-01 Cognex Technology And Investment Corporation Decoding distorted symbols
US7546950B2 (en) 2006-03-28 2009-06-16 Seiko Epson Corporation Method and apparatus for locating and decoding a two-dimensional machine-readable symbol
KR101177589B1 (ko) * 2006-04-19 2012-08-27 에이ㆍ티 코뮤니케이숀즈 가부시키가이샤 로고 부착 이차원 코드
US20100084470A1 (en) * 2008-10-03 2010-04-08 Microsoft Corporation Two-dimensional barcode localization for camera based devices
EP2345002A1 (de) * 2008-10-29 2011-07-20 Schreiner GmbH & Co. KG Verfahren und vorrichtung zur bestimmung der position eines rauschartigen musters in einem bild
JP5751254B2 (ja) * 2010-08-31 2015-07-22 日本電気株式会社 画像処理システム、画像処理方法および画像処理プログラム
DE102011010722A1 (de) * 2011-02-09 2012-08-09 Testo Ag Messgerät-Set und Verfahren zur Dokumentation einer Messung
EP2677458B1 (de) 2012-06-22 2014-10-15 Sick Ag Optoelektronische Vorrichtung und Verfahren zur Helligkeitskorrektur
EP2677492A1 (de) 2012-06-22 2013-12-25 Sick Ag Codeleser und Verfahren zur Online-Verifikation eines Codes
US9071785B2 (en) * 2013-02-15 2015-06-30 Gradeable, Inc. Adjusting perspective distortion of an image
US9067671B2 (en) 2013-07-25 2015-06-30 Disney Enterprises, Inc. Visual localization of unmanned aerial vehicles based on marker detection and processing
US9147095B2 (en) * 2013-11-22 2015-09-29 Ncr Corporation Optical code scanner optimized for reading 2D optical codes
CN108027758B (zh) * 2016-04-28 2021-12-03 京瓷办公信息系统株式会社 数据发送系统及数据发送方法
CN106096488B (zh) * 2016-07-20 2019-01-25 华南理工大学 一种点阵码的识别方法
JP2018029289A (ja) * 2016-08-18 2018-02-22 ブラザー工業株式会社 画像処理装置および画像処理方法
CN109271823A (zh) * 2018-08-08 2019-01-25 佛山市顺德区中山大学研究院 一种自定义二维码的快速定位方法
WO2020131077A1 (en) 2018-12-20 2020-06-25 Hewlett-Packard Development Company, L.P. Read curved visual marks
CN113449534B (zh) * 2021-06-28 2023-03-28 歌尔股份有限公司 二维码图像处理方法和装置
USD995630S1 (en) * 2021-09-28 2023-08-15 Michael Butler Push/pull door sign
US11562551B1 (en) * 2022-04-14 2023-01-24 Scandit Ag Image analysis for decoding angled optical patterns

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JPS63220381A (ja) * 1987-03-10 1988-09-13 Canon Inc バ−コ−ドリ−ダ
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US5811776A (en) * 1996-02-26 1998-09-22 Intermec Corporation Method and apparatus for accurately locating data regions in stored images of symbols
US5854478A (en) * 1996-10-11 1998-12-29 Intermec Ip Corp. Method and apparatus for reading machine-readable symbols having surface or optical distortions
US6018349A (en) * 1997-08-01 2000-01-25 Microsoft Corporation Patch-based alignment method and apparatus for construction of image mosaics
US6201901B1 (en) * 1998-06-01 2001-03-13 Matsushita Electronic Industrial Co., Ltd. Border-less clock free two-dimensional barcode and method for printing and reading the same

Also Published As

Publication number Publication date
DE69835358T2 (de) 2007-07-19
DE69835358D1 (de) 2006-09-07
EP0999519B1 (de) 2006-07-26
US6758399B1 (en) 2004-07-06
EP0999519A1 (de) 2000-05-10

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