CA2757804C - Systeme et methode de balayage de code a barres a l'aide de capteurs d'image couleur - Google Patents

Systeme et methode de balayage de code a barres a l'aide de capteurs d'image couleur Download PDF

Info

Publication number
CA2757804C
CA2757804C CA2757804A CA2757804A CA2757804C CA 2757804 C CA2757804 C CA 2757804C CA 2757804 A CA2757804 A CA 2757804A CA 2757804 A CA2757804 A CA 2757804A CA 2757804 C CA2757804 C CA 2757804C
Authority
CA
Canada
Prior art keywords
values
color image
color
barcode
greyscale
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
Application number
CA2757804A
Other languages
English (en)
Other versions
CA2757804A1 (fr
Inventor
Serguei Zolotov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Psion Inc
Original Assignee
Psion Inc
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 Psion Inc filed Critical Psion Inc
Priority to CA2757804A priority Critical patent/CA2757804C/fr
Publication of CA2757804A1 publication Critical patent/CA2757804A1/fr
Application granted granted Critical
Publication of CA2757804C publication Critical patent/CA2757804C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • G06K7/1491—Methods for optical code recognition the method including quality enhancement steps the method including a reconstruction step, e.g. stitching two pieces of bar code together to derive the full bar code

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Quality & Reliability (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Color Image Communication Systems (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)

Abstract

Un système et une méthode sont présentés pour le balayage de code à barres visant un code à barres cible comprenant la réception des valeurs dimage couleur afin de capter limage du code à barres cible à partir dau moins un capteur dimage couleur et lextraction de valeurs de luminosité de chaque pixel de limage capturée à partir des valeurs dimage couleur afin de définir les valeurs dimage sur léchelle des gris correspondant aux valeurs dimage couleur. Une fois les valeurs de luminosité définies, elles sont fournies comme valeurs dimage sur léchelle des gris à un décodeur de codes à barres sur léchelle des gris en vue dun traitement subséquent.
CA2757804A 2011-11-15 2011-11-15 Systeme et methode de balayage de code a barres a l'aide de capteurs d'image couleur Active CA2757804C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2757804A CA2757804C (fr) 2011-11-15 2011-11-15 Systeme et methode de balayage de code a barres a l'aide de capteurs d'image couleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2757804A CA2757804C (fr) 2011-11-15 2011-11-15 Systeme et methode de balayage de code a barres a l'aide de capteurs d'image couleur

Publications (2)

Publication Number Publication Date
CA2757804A1 CA2757804A1 (fr) 2013-05-15
CA2757804C true CA2757804C (fr) 2018-05-22

Family

ID=48481514

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2757804A Active CA2757804C (fr) 2011-11-15 2011-11-15 Systeme et methode de balayage de code a barres a l'aide de capteurs d'image couleur

Country Status (1)

Country Link
CA (1) CA2757804C (fr)

Also Published As

Publication number Publication date
CA2757804A1 (fr) 2013-05-15

Similar Documents

Publication Publication Date Title
US8313030B2 (en) System and method for barcode scanning with color image sensors
US8079525B1 (en) System and method for decoding barcodes captured with a color image sensor
CA2764196C (fr) Systeme et procede concu pour decoder des codes a barres saisis a l'aide d'un capteur d'images couleur
US20120118969A1 (en) System and method for barcode scanning using image calibration
US8584953B2 (en) System and method for decoding barcodes not easily perceptible by human vision
CN101646014B (zh) 图像处理设备和图像处理方法
JP5265708B2 (ja) 統合されたバーコード・スキャニングを備えた画像キャプチャ・デバイス
US7245780B2 (en) Group average filter algorithm for digital image processing
EP2453382B1 (fr) Procédé et dispositif pour la lecture de codes-barres avec des capteurs d'images couleur
KR20100123739A (ko) 형태학적 연산들에 기초한 바코드 검출
US8422097B2 (en) Apparatus and method for image processing and processing program
US11740132B2 (en) Method and apparatus for color lookup using a mobile device
US8675093B2 (en) Image capturing apparatus and image processing method
CA2757804C (fr) Systeme et methode de balayage de code a barres a l'aide de capteurs d'image couleur
WO2021066822A1 (fr) Procédé et appareil pour une recherche de couleur à l'aide d'un dispositif mobile
US8547393B1 (en) Colorspace conversion based on ambient light detection
WO2021096607A1 (fr) Systèmes et procédés de traitement de données d'image utilisant des capteurs d'images en couleurs
Nikkanen Color constancy by characterization of illumination chromaticity
US11573748B2 (en) Information processing apparatus and information processing system to control emitting light based on illumination information
JP2010226365A (ja) ホワイトバランス処理装置、ホワイトバランス処理方法およびホワイトバランス処理プログラム
JP2008085995A (ja) 色補正方法および画像処理装置
US20140198325A1 (en) System and methods for determining color characterstics of an image
Tervonen et al. Integrated measurement system for miniature camera modules

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20151201