PROCEDE DE DETECTION DE DEFAUTS DANS DES ARTICLES VERRIERS ET INSTALLATION POUR LA MISE EN OEUVRE DUDIT PROCEDE

摘要

A method for detecting low-contrast pressing or blowing defects in glassware articles includes the steps of backlighting the article by way of one or several light sources according to at least one pair of similar patterns shifted in space; capturing at least one pair of images of the backlit article according to each of the patterns of the at least one pair of patterns; combining the images of each of the pairs to form at least one composite image; and detecting the areas of stronger contrast within the composite images.