Abstract
Automatic visual measuring system for bearings number and bearing area proportion on the scraped surface was developed. The linear type light and linear CCD line sensor was used to recognize the scraped surface. Therefore non-uniform illumination on the target surface were reduced. The threshold value to obtain binary image was decided correspond to bearing number and bearing area proportion. Then, Red lead and blue pest were painted in fitting work with another surface to obtain the high contrast image in manually. As a result, developed system was some advantages at high speed and high precious measuring comparison with the conventional method.
