ES2136101T3 - Aparato para inspeccionar productos. - Google Patents

Aparato para inspeccionar productos.

Info

Publication number
ES2136101T3
ES2136101T3 ES93109328T ES93109328T ES2136101T3 ES 2136101 T3 ES2136101 T3 ES 2136101T3 ES 93109328 T ES93109328 T ES 93109328T ES 93109328 T ES93109328 T ES 93109328T ES 2136101 T3 ES2136101 T3 ES 2136101T3
Authority
ES
Spain
Prior art keywords
control system
product
color
values
scaling
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.)
Expired - Lifetime
Application number
ES93109328T
Other languages
English (en)
Inventor
Anthony Vannelli
Thomas C Madsen
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.)
Key Technology Inc
Original Assignee
Key Technology 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 Key Technology Inc filed Critical Key Technology Inc
Application granted granted Critical
Publication of ES2136101T3 publication Critical patent/ES2136101T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0004—Industrial image inspection
    • G06T7/001—Industrial image inspection using an image reference approach
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/56—Extraction of image or video features relating to colour
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
    • G07C3/14—Quality control systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10024—Color image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30108—Industrial image inspection
    • G06T2207/30128—Food products

Abstract

SE DESCRIBE UNA ESTACION DE INSPECCION DE CALIDAD AUTOMATIZADA PARA EVALUAR LAS CARACTERISTICAS DE LOS COMPONENTES DEL COLOR DE UN PRODUCTO. LA ESTACION DE INSPECCION INCLUYE UNA CAMARA DE VIDEO EN COLOR, PARA CAPTURAR TOMAS DE VIDEO DE LAS IMAGENES DEL PRODUCTO, Y UN SISTEMA DE CONTROL PARA ANALIZAR ESAS TOMAS DE VIDEO. EL SISTEMA DE CONTROL ESTA PROGRAMADO PARA REALIZAR UNA CALIBRACION DE REFERENCIA Y POSTERIORMENTE UNA CALIBRACION DE LA MUESTRA. DURANTE LA CALIBRACION DE REFERENCIA UN OPERADOR IDENTIFICA LAS AREAS DEL TIPO DE COMPONENTE A PARTIR DE UNA TOMA DE REFERENCIA REPRESENTADA DE UN PRODUCTO TIPICO. EL SISTEMA DE CONTROL CALCULA LAS CURVAS DE DENSIDAD DEL VALOR DEL COLOR A PARTIR DE LAS AREAS IDENTIFICADAS. LAS CURVAS DE DENSIDAD SE CALIBRAN ENTONCES UNAS CON RESPECTO A OTRAS GRADUANDO CADA UNA DE LAS CURVAS DE DENSIDAD MEDIANTE UN FACTOR DE GRADUACION. LOS FACTORES DE GRADUACION PUEDEN SER SUMINISTRADOS DIRECTAMENTE POR EL OPERADOR O PUEDEN CALCULARSE VALORES POR DEFECTO MEDIANTEEL SISTEMA DE CONTROL. LOS VALORES DEL FACTOR DE GRADUACION POR DEFECTO SE CALCULAN SUMANDO EL PRODUCTO DE LA CURVA DE DENSIDAD CORRESPONDIENTE Y UN HISTOGRAMA COMPLETO DE UNA TOMA DE VIDEO DE MUESTREO A LO LARGO DE UNA GAMA DE VALORES DE COLOR. LOS PIXELES INDIVIDUALES SE CLASIFICAN COMO UNA DE ENTRE UNA PLURALIDAD DE TIPOS DE COMPONENTES DE ACUERDO CON LA CURVA DE DENSIDAD CALIBRADA MAS ALTA EN EL VALOR DEL COLOR DE LOS PIXELES.
ES93109328T 1992-06-16 1993-06-09 Aparato para inspeccionar productos. Expired - Lifetime ES2136101T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/899,450 US5335293A (en) 1992-06-16 1992-06-16 Product inspection method and apparatus

Publications (1)

Publication Number Publication Date
ES2136101T3 true ES2136101T3 (es) 1999-11-16

Family

ID=25411000

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93109328T Expired - Lifetime ES2136101T3 (es) 1992-06-16 1993-06-09 Aparato para inspeccionar productos.

Country Status (6)

Country Link
US (1) US5335293A (es)
EP (1) EP0574831B1 (es)
AT (1) ATE184992T1 (es)
CA (1) CA2093310A1 (es)
DE (1) DE69326502T2 (es)
ES (1) ES2136101T3 (es)

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Also Published As

Publication number Publication date
US5335293A (en) 1994-08-02
CA2093310A1 (en) 1993-12-17
EP0574831A1 (en) 1993-12-22
DE69326502T2 (de) 2000-01-05
EP0574831B1 (en) 1999-09-22
DE69326502D1 (de) 1999-10-28
ATE184992T1 (de) 1999-10-15

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