Design of video system for detecting the bottom of deep pipe

Based on the CCD imaging device, a video system is presented to detect the bottom of deep pipe. By laser beam irradiation, the bottom of deep pipe is detected by CCD camera, which is small view field and large focal length. Then, CCD camera conveys the bottom information to the computer, by image processing, distinct image is got. At the defects analysis on the bottom of deep pipe, threshold is found out by regional segmentation method, After image segmentation, clear image about the bottom can be got, finally, the imperfection on the bottom is quickly located and precision measuring.