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
- Publication number
- 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
- Authority
- JP
- Japan
- Prior art keywords
- dimensional code
- exposure time
- gain factor
- image
- specific pattern
- 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
Links
- 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
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
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
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (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 |
Family
ID=53477951
Family Applications (1)
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 (9)
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 |
WO2018014159A1 (zh) * | 2016-07-18 | 2018-01-25 | 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 |
CN113065374B (zh) * | 2021-04-01 | 2023-10-27 | 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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4816858A (en) * | 1987-02-24 | 1989-03-28 | Olympus Optical Co., Ltd. | Automatic focusing cameras |
US5678102A (en) * | 1996-10-23 | 1997-10-14 | Eastman Kodak Company | Dual purpose camera |
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 |
US7516899B2 (en) * | 2006-03-06 | 2009-04-14 | V.L. Engineering, Inc. | Hand held wireless reading viewer of invisible bar codes |
JP5507251B2 (ja) * | 2006-09-25 | 2014-05-28 | クゥアルコム・インコーポレイテッド | カメラの手ぶれ低減システム |
US7963447B2 (en) * | 2007-11-30 | 2011-06-21 | Symbol Technologies, Inc. | Enhanced monitoring of laser output power in electro-optical readers |
US8629927B2 (en) * | 2008-04-09 | 2014-01-14 | Gentex Corporation | Imaging device |
US8804128B2 (en) * | 2009-11-30 | 2014-08-12 | Yissum Research Development Compan of the Hebrew University of Jerusalem, Ltd. | Interferometer with a space-variant polarization converter to produce radially and azimuthally polarized beams |
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 |
JP2014216975A (ja) * | 2013-04-30 | 2014-11-17 | ソニー株式会社 | 露光制御装置、撮像装置および露光制御方法 |
US9361502B2 (en) * | 2014-07-31 | 2016-06-07 | Symbol Technologies, Llc | System for, and method of, controlling target illumination for an imaging reader |
-
2014
- 2014-12-17 JP JP2015554542A patent/JP5930135B2/ja active Active
- 2014-12-17 US US15/035,281 patent/US9646190B2/en not_active Expired - Fee Related
- 2014-12-17 CN CN201480069775.2A patent/CN105849746A/zh active Pending
- 2014-12-17 WO PCT/JP2014/006285 patent/WO2015098046A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
---|---|
CN105849746A (zh) | 2016-08-10 |
US9646190B2 (en) | 2017-05-09 |
WO2015098046A1 (ja) | 2015-07-02 |
US20160292481A1 (en) | 2016-10-06 |
JPWO2015098046A1 (ja) | 2017-03-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5930135B2 (ja) | 二次元コード読取装置 | |
US8503818B2 (en) | Eye defect detection in international standards organization images | |
EP3175611B1 (en) | System for, and method of, controlling target illumination for an imaging reader | |
US20150163390A1 (en) | Method and apparatus for recognizing information in an image | |
CN108604285B (zh) | 编码信息读取器 | |
US7949244B2 (en) | Method for measuring subject distance | |
JP2010073051A (ja) | ナンバプレート認識方法およびナンバプレート認識装置 | |
JP2015070426A (ja) | 画像処理装置および方法、並びにプログラム | |
JP2015041323A (ja) | 処理装置 | |
US11170520B2 (en) | Image processing apparatus for analyzing an image to detect an object within the image | |
KR101295959B1 (ko) | 실내 천장 영상을 이용한 이동 로봇 위치 측정 장치 및 방법 | |
US20110188093A1 (en) | Methods and Systems for No-Touch Scanning | |
US9230164B2 (en) | Commodity recognition apparatus and control method thereof | |
TW200414749A (en) | Camera device, camera control method and a record medium having recorded said camera control method | |
JP2019176424A (ja) | 画像処理装置、撮像装置、画像処理装置の制御方法、および、撮像装置の制御方法 | |
US10140540B2 (en) | Vehicle imaging system | |
KR101625471B1 (ko) | 보급형 열화상 카메라의 해상도 향상 방법 및 장치 | |
US11928546B2 (en) | Dual illuminator as field of view identification and aiming | |
JP2013106238A (ja) | マーカの検出および追跡装置 | |
US9264596B2 (en) | Security camera system and method for eliminating video aberrations from excessive IR illumination | |
CN112770021B (zh) | 摄影机与滤片切换方法 | |
JP2014150409A (ja) | 画像処理装置、撮像装置および画像処理プログラム | |
JP2006270137A (ja) | 撮像装置 | |
JP2010044669A (ja) | 移動物体検出装置、移動物体検出方法及びプログラム | |
JP2007259076A (ja) | 歩行者認識装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20160405 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20160418 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 5930135 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |