公开(公告)号：US20100110174A1

公开(公告)日：2010-05-06

申请号：US12312035

申请日：2007-10-24

Applicant: Marc Leconte

Inventor： Marc Leconte

IPC: H04N7/18

CPC classification number: G01N21/90 ,  G01N2021/8832 ,  G01N2201/0628

Abstract: The invention concerns an optical inspection method for the line inspection of transparent or translucent objects (2) travelling at fast rate between a light source (3) and means (4) to take images of the objects and to analyze the images taken, so as to detect defects in the objects.According to the invention, the method consists of: controlling the single light source (3) so that said source successively produces two types of illumination for each object travelling in front of said source, the first type being homogeneous illumination whilst the second type is formed of alternate dark areas (s) and light areas (c) with discontinuous spatial variability, taking images of each travelling object when each thereof is successively illuminated by both types of lighting, and analyzing the images taken with the first and second types of illumination, with a view to detecting high contrast defects and low contrast defects respectively

Abstract translation: 本发明涉及一种用于在光源（3）和装置（4）之间以快速传播的透明或半透明物体（2）的线检查的光学检查方法，以拍摄物体的图像并分析所拍摄的图像，从而 以检测物体中的缺陷。 根据本发明，该方法包括：控制单个光源（3），使得所述源对于在所述源前面行进的每个物体连续地产生两种类型的照明，第一类型是均匀照明，而形成第二类型 具有不连续空间变异性的交替暗区域和光区域（c），当通过两种类型的照明连续地照亮每个行进对象的图像并且分析用第一和第二类型的照明拍摄的图像时， 以分别检测高对比度缺陷和低对比度缺陷