Aiming at malpractice of the low efficiency in detecting defects of surface in automobile airbag seal

a machine vision system based on vision software HALCON which can automatically detect airbag seal patch is constructed. Use morphological operator in image processing algorithm to achieve detecting of stains

exposedwhite

incomplete whose size are more than 0. 3 mm2 on the surface of seal. Through detection and analysis on 1 000 samples

correct rate of the system is higher than 99 %

false alarm rate is less than 1 %

and missing report rate is zero. The results show that the system has the advantages of high precision and strong stability.