Inspection of defect on LCD panel using polynomial approximation

Nowadays, the CRT display devices are substituted for LCD display devices rapidly. In LCD panel production, the inspection process is relied on human vision. So, the inspection result is likely to subjective. Therefore, we need the automated inspection system for LCD devices by obtaining objective decision level. In this paper, we propose an efficient automate inspection algorithm using polynomial approximation and optimal thresholding technique. The experimental result shows us that our proposed system can have an enough performance for substitution of human inspectors.