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1. EP0870274 - INSPECTION SYSTEM FOR EXTERIOR ARTICLE SURFACES

Office European Patent Office
Application Number 96920459
Application Date 24.05.1996
Publication Number 0870274
Publication Date 14.10.1998
Publication Kind A4
IPC
G06K 9/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G01N 21/90
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
88Investigating the presence of flaws, defects or contamination
90in a container or its contents
G01N 33/00
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
G06T 7/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
CPC
G06T 7/001
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
0002Inspection of images, e.g. flaw detection
0004Industrial image inspection
001using an image reference approach
G01N 21/9036
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
88Investigating the presence of flaws or contamination
90in a container or its contents
9036using arrays of emitters or receivers
G01N 21/909
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
88Investigating the presence of flaws or contamination
90in a container or its contents
909in opaque containers or opaque container parts, e.g. cans, tins, caps, labels
G01N 2033/0081
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
0078testing material properties on manufactured objects
0081containers; packages; bottles
G06T 2207/10024
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10024Color image
G06T 2207/30164
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
30Subject of image; Context of image processing
30108Industrial image inspection
30164Workpiece; Machine component
Applicants PRESSCO TECH INC
Inventors COCHRAN DON W
TRINER JAMES E
SPAYER JAMES
HAASE MICHAEL A
Designated States
Priority Data US19950474492 null
WO1996US07610 null
47449295 07.06.1995 US
9607610 24.05.1996 US
Title
(DE) SYSTEM ZUR INSPEKTION DER ÄUSSEREN OBERFLÄCHE VON GEGENSTANDE
(EN) INSPECTION SYSTEM FOR EXTERIOR ARTICLE SURFACES
(FR) SYSTEME D'INSPECTION DES SURFACES EXTERIEURES D'OBJETS
Abstract
(EN)
A system for automated inspection of article exteriors includes a plurality of video cameras (32). One or more of these video cameras (32) is black and white while at least one is color capable. A strobe light for illuminating a specimen (22) disposed in a specimen area (24) onto which all of the cameras (32) are focused. The strobe allows for each camera (32) to capture a still image of the specimen (22), The black and white cameras (32) capture images which allow determining whether the exterior layout is acceptable. The color camera or cameras (30) captures an image which allows determining whether the coloration of the specimen (22) is acceptable. Specimens (22) are selectively rejected on the basis of these acquired images. The system is particularly useful in inspection of beverage container (22) and their associated labelling.

(FR)
La présente invention décrit un système d'inspection automatique de la configuration extérieure d'objets, comprenant une pluralité de caméras vidéo (32). Au moins l'une de ces caméras (32) est en noir et blanc et au moins l'une d'elles est en couleurs. Une lumière stroboscopique éclaire un spécimen (22) disposé dans une zone à spécimens (24) sur laquelle toutes les caméras (32) sont centrées. Le stroboscope permet à chaque caméra (32) de saisir une image fixe du spécimen (22). Les caméras en noir et blanc (32) saisissent des images qui permettent de déterminer si la configuration extérieure de l´article est acceptable. La (les) caméra(s) en couleurs (30) saisit (saisissent) une image qui permet de déterminer si la coloration du spécimen (22) est acceptable. Les spécimens (22) seront rejetés sélectivement sur la base des images ainsi obtenues. Le système s'avère particulièrement utile pour l'inspection de récipients pour boissons (22) et leur étiquetage associé.