Title :
Automatic grading of ceramic tiles using machine vision
Author :
Boukouvalas, C. ; Kittler, J. ; Marik, R. ; Petrou, M.
Author_Institution :
Dept. of Electron. & Electr. Eng., Surrey Univ., Guildford, UK
Abstract :
The authors present a method designed to solve the problem of automatic color grading for industrial inspection. By far the most important obstacle to the solution of this problem is the temporal constancy of the image capturing conditions. They discuss the problems they were confronted with in that respect and the ways they dealt with them. Finally, they present results of correctly grading a series of ceramic tiles, the differences of which were at the threshold of the human perception
Keywords :
automatic optical inspection; ceramic industry; colour vision; computer vision; automatic color grading; ceramic tiles; human perception; image capturing conditions; industrial inspection; machine vision; temporal constancy; Ceramics; Color; Colored noise; Humans; Lighting; Machine vision; Signal to noise ratio; Surface cracks; Surface texture; Tiles;
Conference_Titel :
Industrial Electronics, 1994. Symposium Proceedings, ISIE '94., 1994 IEEE International Symposium on
Conference_Location :
Santiago
Print_ISBN :
0-7803-1961-3
DOI :
10.1109/ISIE.1994.333123
