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1. WO2000043757 - METHOD AND DEVICE FOR DETECTING CRIZZLING IN TRANSLUCENT OR TRANSPARENT MATERIAL

Publication Number WO/2000/043757
Publication Date 27.07.2000
International Application No. PCT/BE2000/000006
International Filing Date 19.01.2000
Chapter 2 Demand Filed 04.08.2000
IPC
B07C 5/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
07SEPARATING SOLIDS FROM SOLIDS; SORTING
CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
5Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
34Sorting according to other particular properties
G01N 21/90 2006.01
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
CPC
B07C 5/3408
BPERFORMING OPERATIONS; TRANSPORTING
07SEPARATING SOLIDS FROM SOLIDS; SORTING
CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
5Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
34Sorting according to other particular properties
3404according to properties of containers or receptacles, e.g. rigidity, leaks, fill-level
3408for bottles, jars or other glassware
G01N 21/9054
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
9054Inspection of sealing surface and container finish
Applicants
  • VISIGLAS SOCIETE ANONYME [BE/BE]; 20, rue de l'Industrie B-1400 Nivelles, BE (AllExceptUS)
  • BOTMAN, Etienne [BE/BE]; BE (UsOnly)
  • GROSSETETE, Frédéric [BE/BE]; BE (UsOnly)
Inventors
  • BOTMAN, Etienne; BE
  • GROSSETETE, Frédéric; BE
Agents
  • POWIS DE TENBOSSCHE, Roland; Cabinet Bede S.A. 3, place de l'Alma B-1200 Bruxelles, BE
Priority Data
PCT/BE99/0000619.01.1999BE
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) METHOD AND DEVICE FOR DETECTING CRIZZLING IN TRANSLUCENT OR TRANSPARENT MATERIAL
(FR) PROCEDE ET DISPOSITIF POUR DETECTER DES GLACURES DANS DES PIECES EN MATIERE TRANSLUCIDE OU TRANSPARENTE
Abstract
(EN)
A method for detecting crizzling in at least one part of items made from a translucent or transparent material, whereby an item is illuminated by an optical beam, photographic images of the illuminated item are taken by various camera heads and the images are treated in order to detect one or more examples of crizzling. A relative movement is created between the item and the camera heads, whereby several distinct images are taken for the item thus illuminated and said images are delayed, being made of at least 25 image points or pixels, in order to obtain a series of developed images, whereby each image corresponds to a development, when at least one part of the relative movement between the item and the camera heads, image points or pixels of an image of an item occurs. The series of developed images is treated to highlight the crizzling.
(FR)
Procédé pour détecter des glaçures dans au moins une partie de pièces réalisées en une matière translucide ou transparente, dans lequel on illumine une pièce au moyen d'au moins un rayon lumineux, on prend des images de la pièce illuminée par plusieurs têtes de prise de vue, et dans lequel on traite les images pour détecter une ou des glaçures. On crée un mouvement relatif entre la pièce et des têtes de prises de vue, pendant lequel on prend pour la pièce illuminée, plusieurs images distinctes, décalées dans le temps, et formées d'au moins 25 points d'image ou pixels, de manière à obtenir une série d'images développées correspondant chacune au développement, lors d'au moins une partie du mouvement relatif entre la pièce et les têtes de prise de vue, des points d'images ou pixels d'une image de la pièce. Ensuite, on traite la série d'images développées pour mettre en évidence des glaçures.
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