MA39233A1 - Procédé d'identification à distance du code qr au moyen d'une caméra. - Google Patents

Procédé d'identification à distance du code qr au moyen d'une caméra.

Info

Publication number
MA39233A1
MA39233A1 MA39233A MA39233A MA39233A1 MA 39233 A1 MA39233 A1 MA 39233A1 MA 39233 A MA39233 A MA 39233A MA 39233 A MA39233 A MA 39233A MA 39233 A1 MA39233 A1 MA 39233A1
Authority
MA
Morocco
Prior art keywords
image
code
white
camera
tetouan
Prior art date
Application number
MA39233A
Other languages
English (en)
Other versions
MA39233B1 (fr
Inventor
Youssef ZAZ
Hicham Tribak
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 filed Critical
Priority to MA39233A priority Critical patent/MA39233B1/fr
Priority to PCT/MA2017/050002 priority patent/WO2018021901A1/fr
Publication of MA39233A1 publication Critical patent/MA39233A1/fr
Publication of MA39233B1 publication Critical patent/MA39233B1/fr

Links

Classifications

    • 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
    • G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
    • G06K7/1417—2D bar codes
    • G—PHYSICS
    • G06—COMPUTING 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
    • G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
    • 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
    • G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
    • G06K7/1443—Methods for optical code recognition including a method step for retrieval of the optical code locating of the code in an image
    • 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
    • G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
    • G06K7/1447—Methods for optical code recognition including a method step for retrieval of the optical code extracting optical codes from image or text carrying said optical code
    • 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
    • G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
    • G06K7/1452—Methods for optical code recognition including a method step for retrieval of the optical code detecting bar code edges
    • 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
    • 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)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Character Input (AREA)
  • Image Analysis (AREA)

Abstract

La présente invention a trait à un procédé de lecture d'un code à barres au moyen d'une caméra et plusparticulièrement l'identification d'un code qr à distance.Le procédé proposé, à travers la présente invention, est basé essentiellement sur la capture d'image au moyend'une caméra numérique (11) hd (high definition) qui est utilisée pour capturer une première image deformat hd. Afin de réduire le temps de calcul, cette première image est convertie en une seconde image dedéfinition plus faible sd (standard definition), puis en une troisième image binaire de couleurs noire etblanche (13). Ladite troisième image binaire (13) est balayée dans les deux directions orthogonales del'image (31, 32) afin d'extraire la zones (14) susceptible de contenir les motifs de recherche (21, 45, 52)caractérisant le code qr capturé (14, 51). Une fois la zone du code qr est localisée dans l'image binaire ennoir et blanc, le système extrait la zone correspondante dans l'image hd contenant le code qr recadré. Leprocédé est conçu de manière à corriger l'effet de perspective (111) dans le cas où ladite zone de code auraitsubi une déformation. L'extraction de l'information (132) contenue dans ledit code qr corrigé (131) devientdonc possible grâce aux algorithmes déjà connus. (71) ma:université abdelmalek essaâdi - tétouan@avenue palestine, m'hannech ii b.P. 2117 - tétouan @
MA39233A 2016-07-27 2016-07-27 Procédé d'identification à distance du code qr au moyen d'une caméra. MA39233B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MA39233A MA39233B1 (fr) 2016-07-27 2016-07-27 Procédé d'identification à distance du code qr au moyen d'une caméra.
PCT/MA2017/050002 WO2018021901A1 (fr) 2016-07-27 2017-05-10 Procédé d'identification à distance du code qr au moyen d'une caméra.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MA39233A MA39233B1 (fr) 2016-07-27 2016-07-27 Procédé d'identification à distance du code qr au moyen d'une caméra.

Publications (2)

Publication Number Publication Date
MA39233A1 true MA39233A1 (fr) 2018-01-31
MA39233B1 MA39233B1 (fr) 2018-11-30

Family

ID=59521599

Family Applications (1)

Application Number Title Priority Date Filing Date
MA39233A MA39233B1 (fr) 2016-07-27 2016-07-27 Procédé d'identification à distance du code qr au moyen d'une caméra.

Country Status (2)

Country Link
MA (1) MA39233B1 (fr)
WO (1) WO2018021901A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2938338B2 (ja) 1994-03-14 1999-08-23 株式会社デンソー 二次元コード
KR100339691B1 (ko) * 2001-11-03 2002-06-07 한탁돈 코드인식을 위한 장치 및 그 방법
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
US7751629B2 (en) * 2004-11-05 2010-07-06 Colorzip Media, Inc. Method and apparatus for decoding mixed code
JP2007090448A (ja) * 2005-09-27 2007-04-12 Honda Motor Co Ltd 二次元コード検出装置及びそのプログラム、並びに、ロボット制御情報生成装置及びロボット
US20100236598A1 (en) 2009-03-18 2010-09-23 Solar Semiconductor Pvt. Ltd. Embedded rfid solution for solar panels
EP2740071A4 (fr) 2011-08-02 2015-04-08 Crane Merchandising Sys Inc Génération de code quick response (qr) dans des distributeurs automatiques ou des kiosques en vue de renforcer l'engagement des clients

Also Published As

Publication number Publication date
WO2018021901A1 (fr) 2018-02-01
MA39233B1 (fr) 2018-11-30

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