ATE480832T1 - Vorrichtung und verfahren zur zweistufigen dekodierung von hochdichten optischen symbolen - Google Patents
Vorrichtung und verfahren zur zweistufigen dekodierung von hochdichten optischen symbolenInfo
- Publication number
- ATE480832T1 ATE480832T1 AT06738674T AT06738674T ATE480832T1 AT E480832 T1 ATE480832 T1 AT E480832T1 AT 06738674 T AT06738674 T AT 06738674T AT 06738674 T AT06738674 T AT 06738674T AT E480832 T1 ATE480832 T1 AT E480832T1
- Authority
- AT
- Austria
- Prior art keywords
- pixels
- gray
- high density
- dark
- density optical
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- 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
- G06K7/1469—Methods for optical code recognition the method including quality enhancement steps using sub-pixel interpolation
-
- 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
- G06K7/1478—Methods for optical code recognition the method including quality enhancement steps adapting the threshold for pixels in a CMOS or CCD pixel sensor for black and white recognition
-
- 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
- G06K7/1486—Setting the threshold-width for bar codes to be decoded
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Artificial Intelligence (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Quality & Reliability (AREA)
- Image Analysis (AREA)
- Image Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Optical Communication System (AREA)
- Studio Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/088,643 US7213761B2 (en) | 2005-03-23 | 2005-03-23 | Apparatus and process for two-stage decoding of high-density optical symbols |
PCT/US2006/009640 WO2006102031A1 (en) | 2005-03-23 | 2006-03-17 | Apparatus and process for two-stage decoding of high-density optical symbols |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE480832T1 true ATE480832T1 (de) | 2010-09-15 |
Family
ID=36603630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT06738674T ATE480832T1 (de) | 2005-03-23 | 2006-03-17 | Vorrichtung und verfahren zur zweistufigen dekodierung von hochdichten optischen symbolen |
Country Status (9)
Country | Link |
---|---|
US (1) | US7213761B2 (de) |
EP (1) | EP1861810B1 (de) |
JP (1) | JP2008535058A (de) |
KR (1) | KR100920764B1 (de) |
CN (1) | CN101198961B (de) |
AT (1) | ATE480832T1 (de) |
AU (1) | AU2006227490B2 (de) |
DE (1) | DE602006016749D1 (de) |
WO (1) | WO2006102031A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7213761B2 (en) * | 2005-03-23 | 2007-05-08 | Microscan Systems Incorporated | Apparatus and process for two-stage decoding of high-density optical symbols |
JP5115131B2 (ja) * | 2007-10-11 | 2013-01-09 | 株式会社デンソーウェーブ | 光学的情報読取装置 |
JP5119853B2 (ja) * | 2007-10-19 | 2013-01-16 | 株式会社デンソーウェーブ | 光学的情報読取装置 |
WO2010090159A1 (ja) * | 2009-02-05 | 2010-08-12 | 株式会社オプトエレクトロニクス | 光学的情報読取装置及び光学的情報読取方法 |
TWI423246B (zh) * | 2009-08-21 | 2014-01-11 | Primax Electronics Ltd | 圖像處理方法及其相關裝置 |
CN102881259B (zh) * | 2009-09-16 | 2015-05-20 | 致伸科技股份有限公司 | 图像处理方法及装置 |
US8162223B2 (en) * | 2010-03-08 | 2012-04-24 | Seiko Epson Corporation | Method and apparatus for creating pixel tokens from machine-readable symbols to improve decoding accuracy in low resolution images |
US8267322B2 (en) * | 2010-03-08 | 2012-09-18 | Seiko Epson Corporation | Method and apparatus for correcting decoding errors in machine-readable symbols |
TWI431584B (zh) | 2010-09-15 | 2014-03-21 | E Ink Holdings Inc | 電子紙顯示器之驅動方法及其驅動裝置 |
JP5807602B2 (ja) * | 2012-03-29 | 2015-11-10 | 株式会社デンソーウェーブ | 情報コード読取装置 |
US10057498B1 (en) | 2013-03-15 | 2018-08-21 | Cognex Corporation | Light field vision system camera and methods for using the same |
CN109791623B (zh) * | 2016-09-28 | 2022-06-28 | 3M创新有限公司 | 具有包括物理表面的基底的制品及其构造方法 |
KR102588687B1 (ko) * | 2017-10-30 | 2023-10-12 | 한국전자통신연구원 | 영상 기반 바코드 인식 장치 및 방법 |
EP3789906B1 (de) * | 2019-09-05 | 2021-07-07 | Sick Ag | Bestimmen der modulgrösse eines optischen codes |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4364089A (en) * | 1979-10-31 | 1982-12-14 | Westinghouse Electric Corp. | Binary correlation video tracker |
US4339745A (en) * | 1980-05-14 | 1982-07-13 | General Electric Company | Optical character recognition |
JPH0731717B2 (ja) * | 1985-08-27 | 1995-04-10 | 住友電気工業株式会社 | 光学読取装置 |
JPH0477978A (ja) * | 1990-07-20 | 1992-03-12 | Nitsuko Corp | バーコードの読取り方法 |
CN1046169C (zh) * | 1992-09-30 | 1999-11-03 | 欧林巴斯光学工业股份有限公司 | 条型码数字化信号处理电路 |
CN1036808C (zh) * | 1993-05-11 | 1997-12-24 | 欧林巴斯光学工业股份有限公司 | 可改变工作范围的条形码译码器及其译码方法 |
US5979763A (en) | 1995-10-13 | 1999-11-09 | Metanetics Corporation | Sub-pixel dataform reader with dynamic noise margins |
EP0895175B1 (de) | 1997-08-01 | 2000-10-11 | Datalogic S.P.A. | Verfahren zum Abtasten eines Strichkodes |
US6577757B1 (en) * | 1999-07-28 | 2003-06-10 | Intelligent Reasoning Systems, Inc. | System and method for dynamic image recognition |
US6628808B1 (en) * | 1999-07-28 | 2003-09-30 | Datacard Corporation | Apparatus and method for verifying a scanned image |
JP2001307013A (ja) * | 2000-04-20 | 2001-11-02 | Oki Electric Ind Co Ltd | バーコード読取装置 |
US20020176001A1 (en) * | 2001-05-11 | 2002-11-28 | Miroslav Trajkovic | Object tracking based on color distribution |
DE10123406A1 (de) | 2001-05-15 | 2002-11-21 | Sick Ag | Verfahren zum Erfassen von zweidimensionalen Codes |
US7154515B2 (en) * | 2001-06-15 | 2006-12-26 | Perkinelmer, Inc. | Method and apparatus for reducing printing artifacts of stitched images |
US7331523B2 (en) * | 2001-07-13 | 2008-02-19 | Hand Held Products, Inc. | Adaptive optical image reader |
JP2004045356A (ja) * | 2002-05-20 | 2004-02-12 | Jfe Steel Kk | 表面欠陥検出方法 |
US6845914B2 (en) | 2003-03-06 | 2005-01-25 | Sick Auto Ident, Inc. | Method and system for verifying transitions between contrasting elements |
DE60328923D1 (de) * | 2003-04-15 | 2009-10-01 | Fujitsu Ltd | Codeerkennungsverfahren und einrichtung |
CN100481117C (zh) * | 2004-03-15 | 2009-04-22 | 武汉矽感科技有限公司 | 一种二维条码编解码方法 |
US7303131B2 (en) * | 2004-07-30 | 2007-12-04 | Symbol Technologies, Inc. | Automatic focusing system for imaging-based bar code reader |
US7213761B2 (en) * | 2005-03-23 | 2007-05-08 | Microscan Systems Incorporated | Apparatus and process for two-stage decoding of high-density optical symbols |
-
2005
- 2005-03-23 US US11/088,643 patent/US7213761B2/en not_active Expired - Fee Related
-
2006
- 2006-03-17 KR KR1020077024339A patent/KR100920764B1/ko not_active IP Right Cessation
- 2006-03-17 DE DE602006016749T patent/DE602006016749D1/de active Active
- 2006-03-17 AT AT06738674T patent/ATE480832T1/de not_active IP Right Cessation
- 2006-03-17 EP EP06738674A patent/EP1861810B1/de not_active Not-in-force
- 2006-03-17 JP JP2008503048A patent/JP2008535058A/ja active Pending
- 2006-03-17 CN CN2006800180008A patent/CN101198961B/zh not_active Expired - Fee Related
- 2006-03-17 WO PCT/US2006/009640 patent/WO2006102031A1/en active Application Filing
- 2006-03-17 AU AU2006227490A patent/AU2006227490B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
AU2006227490B2 (en) | 2009-10-01 |
DE602006016749D1 (de) | 2010-10-21 |
AU2006227490A1 (en) | 2006-09-28 |
WO2006102031A1 (en) | 2006-09-28 |
EP1861810A1 (de) | 2007-12-05 |
JP2008535058A (ja) | 2008-08-28 |
KR100920764B1 (ko) | 2009-10-09 |
US7213761B2 (en) | 2007-05-08 |
CN101198961B (zh) | 2011-08-03 |
US20060213998A1 (en) | 2006-09-28 |
KR20070117681A (ko) | 2007-12-12 |
CN101198961A (zh) | 2008-06-11 |
EP1861810B1 (de) | 2010-09-08 |
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Legal Events
Date | Code | Title | Description |
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RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |