Patent Document ID: 20100177191
Application ID: 12665210
Patent Status: 0

Claim One:
1. A method for the optical inspection of a matt surface of an object, the surface having a random texture, for the purpose of finding texture anomalies, the method comprising at least the following main steps: Creating in a first main step n>1 digital images of the surface by an image sensor whereby the surface is illuminated from one direction for each image to be created whereby the directions for each image differ from each other, Defining in a second main step r>0 regions of interest of the surface whereby all regions of interest are entirely included in the n images and a matrix of n×r sub-images, which consist of the r regions of interest for each of the n images, is created, Independently detecting in a third main step texture anomalies in the sub-images by digital image processing and generating n abnormality charts showing the putative anomalies for each sub image, Generating in a fourth main step for each of the r regions of interest a joint abnormality chart is by fusion of the n abnormality charts of said region of interest and Detecting in a fifth main step texture anomalies in each of the r joint abnormality charts.