JP5930135B2 - 二次元コード読取装置 - Google Patents
二次元コード読取装置 Download PDFInfo
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- JP5930135B2 JP5930135B2 JP2015554542A JP2015554542A JP5930135B2 JP 5930135 B2 JP5930135 B2 JP 5930135B2 JP 2015554542 A JP2015554542 A JP 2015554542A JP 2015554542 A JP2015554542 A JP 2015554542A JP 5930135 B2 JP5930135 B2 JP 5930135B2
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- 238000005286 illumination Methods 0.000 claims description 67
- 238000001514 detection method Methods 0.000 claims description 35
- 238000003384 imaging method Methods 0.000 claims description 8
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- 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
- G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
- G06K7/1417—2D bar codes
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- 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
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10712—Fixed beam scanning
- G06K7/10722—Photodetector array or CCD scanning
- G06K7/10732—Light sources
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- 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
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10712—Fixed beam scanning
- G06K7/10722—Photodetector array or CCD scanning
-
- 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
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10712—Fixed beam scanning
- G06K7/10722—Photodetector array or CCD scanning
- G06K7/10752—Exposure time control
-
- 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
- G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Image Input (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
Description
以下、図1から図5を用いて実施の形態1に係る二次元コード読取装置について説明する。
実施の形態2に係る二次元コード読取装置2は、補助照明制御部7が補助照明8を点灯させた場合に、カメラ1に対して露出時間及び利得率の自動制御を無効化して予め設定された露出時間及び利得率の固定値に基づいて再度前記二次元コードの撮像を実行することを特徴とする。この固定値は、補助照明8を点灯させた際にカメラ1が券媒体に印字された二次元コードを撮像するのに適した露出時間及び利得率の値である。
Claims (2)
- 券媒体に印字された二次元コードの画像を取得する画像読み込み部と、
前記画像読み込み部により取得した前記二次元コードの画像から、該二次元コードを識別するための特定パターンを検出する特定パターン検出部と、
前記特定パターン検出部が検出した二次元コードに記録された情報を読み取る二次元コード復号部と、
前記券媒体に光を照射する補助照明と、
前記補助照明の点灯又は消灯の制御を行う補助照明制御部と、
を備え、
前記補助照明制御部は、前記特定パターン検出部により前記特定パターンが検出され、前記二次元コード復号部により前記二次元コードに記録された情報が読み取れなかった場合に、前記補助照明を点灯させ、
前記画像読み込み部が取得した二次元コードの画像は、露出時間又は利得率を自動制御して画像の明るさを調整するカメラによって撮像された画像であって、
前記補助照明制御部は、予め定められた前記露出時間に関する閾値よりも前記カメラが前記画像を撮像する際の前記露出時間が短い場合、又は前記利得率に関する閾値よりも前記カメラが前記画像を撮像する際の前記利得率が小さい場合には、前記特定パターン検出部の検出結果、及び前記二次元コード復号部の読み取り結果にかかわらず、前記補助照明を点灯させないことを特徴とする二次元コード読取装置。 - 前記補助照明制御部が前記補助照明を点灯させた場合に、前記カメラに対して前記露出時間及び前記利得率の自動制御を無効化して予め決められた前記露出時間及び前記利得率の固定値を設定し、該固定値に基づいて、前記カメラに対して前記露出時間及び前記利得率を制御させ、再度前記二次元コードの撮像を実行させる露出時間利得率制御部を備えることを特徴とする請求項1に記載の二次元コード読取装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013270892 | 2013-12-27 | ||
JP2013270892 | 2013-12-27 | ||
PCT/JP2014/006285 WO2015098046A1 (ja) | 2013-12-27 | 2014-12-17 | 二次元コード読取装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP5930135B2 true JP5930135B2 (ja) | 2016-06-08 |
JPWO2015098046A1 JPWO2015098046A1 (ja) | 2017-03-23 |
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015554542A Active JP5930135B2 (ja) | 2013-12-27 | 2014-12-17 | 二次元コード読取装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9646190B2 (ja) |
JP (1) | JP5930135B2 (ja) |
CN (1) | CN105849746A (ja) |
WO (1) | WO2015098046A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106204843A (zh) * | 2016-07-13 | 2016-12-07 | 尹博实 | 一种门禁锁及门禁系统 |
CN108141493B (zh) * | 2016-07-18 | 2020-02-14 | 华为技术有限公司 | 闪光灯的控制方法及装置 |
JP6930364B2 (ja) * | 2017-03-31 | 2021-09-01 | 株式会社デンソーウェーブ | 情報読取装置 |
CN107358135B (zh) * | 2017-08-28 | 2020-11-27 | 北京奇艺世纪科技有限公司 | 一种二维码扫码方法及装置 |
CN108280385A (zh) * | 2018-02-06 | 2018-07-13 | 佛山市南方数据科学研究院 | 一种隐形二维条码解读系统 |
JP2020042358A (ja) * | 2018-09-06 | 2020-03-19 | 株式会社デンソーウェーブ | 情報コード読取装置 |
JP7204553B2 (ja) * | 2019-03-20 | 2023-01-16 | 株式会社東芝 | 決済装置及びリーダ |
JP7238681B2 (ja) * | 2019-08-09 | 2023-03-14 | 株式会社デンソーウェーブ | 情報読取装置 |
CN117744683A (zh) * | 2021-04-01 | 2024-03-22 | 支付宝(杭州)信息技术有限公司 | 一种二维码识别方法、装置及设备 |
US12045691B1 (en) * | 2023-03-29 | 2024-07-23 | Zebra Technologies Corporation | Indicia reading systems and associated methods for determining a type of media upon which encoded indicia are rendered |
Citations (3)
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JP2002304594A (ja) * | 2001-01-31 | 2002-10-18 | Denso Corp | 情報コード存在推定方法,情報コード読取装置及び情報コード存在推定プログラム |
JP2006081087A (ja) * | 2004-09-13 | 2006-03-23 | Matsushita Electric Ind Co Ltd | 撮像装置および撮像方法 |
JP2011113308A (ja) * | 2009-11-26 | 2011-06-09 | Toshiba Tec Corp | シンボル認識装置及びその制御プログラム |
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JP2001255664A (ja) * | 2000-03-14 | 2001-09-21 | Fuji Photo Film Co Ltd | 画像露光方法 |
US6697591B2 (en) * | 2001-06-21 | 2004-02-24 | Canon Kabushiki Kaisha | Electrophotographic apparatus and process cartridge |
JP4264920B2 (ja) * | 2001-06-22 | 2009-05-20 | ソニー株式会社 | デジタルカメラの露出制御方法および露出制御装置 |
JP4046971B2 (ja) | 2001-10-26 | 2008-02-13 | キヤノン株式会社 | バーコード読み取り装置及び方法 |
JP2004030014A (ja) | 2002-06-24 | 2004-01-29 | Matsushita Electric Ind Co Ltd | コード読み取り装置 |
US6880759B2 (en) * | 2003-05-23 | 2005-04-19 | Symagery Microsystems Inc. | Optical reader station |
JP2005003385A (ja) * | 2003-06-09 | 2005-01-06 | Mitsutoyo Corp | 画像測定方法、および画像測定装置 |
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WO2011064785A1 (en) * | 2009-11-30 | 2011-06-03 | Yissum Research Development Company Of The Hebrew University Of Jerusalem, Ltd. | Polarization interferometer |
CN102209200B (zh) * | 2010-03-31 | 2013-03-13 | 比亚迪股份有限公司 | 一种自动曝光控制方法 |
JP5214780B2 (ja) | 2011-08-08 | 2013-06-19 | 株式会社東芝 | 読取り装置 |
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2014
- 2014-12-17 US US15/035,281 patent/US9646190B2/en not_active Expired - Fee Related
- 2014-12-17 JP JP2015554542A patent/JP5930135B2/ja active Active
- 2014-12-17 WO PCT/JP2014/006285 patent/WO2015098046A1/ja active Application Filing
- 2014-12-17 CN CN201480069775.2A patent/CN105849746A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002304594A (ja) * | 2001-01-31 | 2002-10-18 | Denso Corp | 情報コード存在推定方法,情報コード読取装置及び情報コード存在推定プログラム |
JP2006081087A (ja) * | 2004-09-13 | 2006-03-23 | Matsushita Electric Ind Co Ltd | 撮像装置および撮像方法 |
JP2011113308A (ja) * | 2009-11-26 | 2011-06-09 | Toshiba Tec Corp | シンボル認識装置及びその制御プログラム |
Also Published As
Publication number | Publication date |
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US9646190B2 (en) | 2017-05-09 |
WO2015098046A1 (ja) | 2015-07-02 |
JPWO2015098046A1 (ja) | 2017-03-23 |
CN105849746A (zh) | 2016-08-10 |
US20160292481A1 (en) | 2016-10-06 |
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