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 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
    • 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 OR CALCULATING; 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)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6997387B1 (en) * 2001-03-28 2006-02-14 The Code Corporation Apparatus and method for calibration of projected target point within an image
JP2003168084A (ja) * 2001-11-30 2003-06-13 Sanyo Electric Co Ltd 本人認証システム及び方法
JP2003168071A (ja) * 2001-11-30 2003-06-13 Sanyo Electric Co Ltd ２次元バーコードの読み取り方法
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
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
US8908988B2 (en) * 2010-08-31 2014-12-09 Nec Corporation Method and system for recovering a code image including blurring
DE102011010722B4 (de) * 2011-02-09 2024-10-10 Testo Ag Messgerät-Set und Verfahren zur Dokumentation einer Messung
EP2677492A1 (de) 2012-06-22 2013-12-25 Sick Ag Codeleser und Verfahren zur Online-Verifikation eines Codes
EP2677458B1 (de) * 2012-06-22 2014-10-15 Sick Ag Optoelektronische Vorrichtung und Verfahren zur Helligkeitskorrektur
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
US10158769B2 (en) * 2016-04-28 2018-12-18 Kyocera Document Solutions Inc. Data transmission system and data transmission method
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
CN118364838B (zh) * 2024-05-06 2026-04-03 招商银行股份有限公司 图片变换方法、装置、设备以及存储介质
DE102024210335A1 (de) 2024-10-25 2026-04-30 Robert Bosch Gesellschaft mit beschränkter Haftung Messeinheit zur Vermessung von Bauelementen
CN121615669B (zh) * 2026-01-27 2026-04-24 浙江道明光电科技有限公司 一种蜂窝码识读方法、装置、设备及存储介质

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133667A (ja) * 1983-01-20 1984-08-01 Hitachi Ltd 画像補正処理方法
JPS63220381A (ja) * 1987-03-10 1988-09-13 Canon Inc バ−コ−ドリ−ダ
CA1329263C (en) * 1989-03-01 1994-05-03 Mark Krichever Bar code scanner
US5410620A (en) * 1989-08-02 1995-04-25 Teiryo Sangyo Co., Ltd. Digital data reader of digital data recording sheet
JP3187936B2 (ja) * 1992-05-29 2001-07-16 オリンパス光学工業株式会社 バーコード読取装置
US5801848A (en) * 1993-01-06 1998-09-01 Fontech Ltd. Process for transmitting and/or storing information
US5446271A (en) * 1993-08-06 1995-08-29 Spectra-Physics Scanning Systems, Inc. Omnidirectional scanning method and apparatus
US5726435A (en) * 1994-03-14 1998-03-10 Nippondenso Co., Ltd. Optically readable two-dimensional code and method and apparatus using the same
US5631457A (en) * 1994-08-17 1997-05-20 Olympus Optical Co., Ltd. Two-dimensional symbol data read apparatus
US5637849A (en) * 1995-05-31 1997-06-10 Metanetics Corporation Maxicode data extraction using spatial domain features
JP3676443B2 (ja) * 1995-09-01 2005-07-27 オリンパス株式会社 情報再生装置及び情報再生方法
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
EP0999519A1 (de) 2000-05-10
US6758399B1 (en) 2004-07-06
DE69835358D1 (de) 2006-09-07
DE69835358T2 (de) 2007-07-19
EP0999519B1 (de) 2006-07-26

Similar Documents

Publication Publication Date Title
DE69835358D1 (de) Verfahren zur Korrektur der Verzerrung beim Abtasten eines optischen Codes
EP1862939A1 (de) Bidirektionales Strichcodesymbol und Kodier- und Dekodierverfahren dafür
US5153928A (en) Method and apparatus for recording/reproducing mesh pattern data
TWI528293B (zh) QR code
US6064763A (en) Time-efficient method of analyzing imaged input data to locate two-dimensional machine-readable symbols or other linear images therein
US7543753B2 (en) Reconstruction of virtual raster
US20130020386A1 (en) Information input output method using dot pattern
DE69433492D1 (de) Verfahren und Vorrichtung zum Dekodieren von Streifencodes durch unabhängige Analyse von Streifen und Zwischenräumen
US20040251306A1 (en) Code reader
KR100578182B1 (ko) 홀로그래픽 시스템에서의 재생 홀로그램 데이터 전처리장치 및 그 방법
US9070033B2 (en) Stack barcode reader and stack barcode reading method
JP4846331B2 (ja) 光電式エンコーダ、及び、そのスケール
ATE374403T1 (de) Verfahren zur erkennung eines codes
CA2376766A1 (en) Data strip and method for coding and decoding printed data
CN101609508B (zh) 对物体身份识别和朝向信息计算的标志结构及识别方法
US5949053A (en) Optimized technique for decoding a bar code from an image of an array of pixels
US7417776B2 (en) Hologram recording and reproduction method, hologram recording and reproduction apparatus, and hologram recording medium
ATE231634T1 (de) Verfahren zur wiederherstellung aufeinanderfolgender abtastungen eines strichcodes
JPH05161002A (ja) 原稿読み取り装置
JP4885630B2 (ja) 二次元エンコーダ、及び、そのスケール
ATE289691T1 (de) Vorrichtung und verfahren zum lesen eines optischen codes
CN109934040B (zh) 一种一维条码的边界筛选方法及设备
JP4107237B2 (ja) 光学的情報読取装置の境界位置特定方法
CN114565924B (zh) 一种基于像素提取的矩形标志位的检测方法
CN115587607B (zh) 一种qr二维码的识别定位方法及装置

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties