Development of micro-distortion quantitative technology by means of stripe density visual image method

Abstract

The appearance inspection of the product often relies on the sensory inspection, such as visual and/or touch checks. Therefore, the accuracy of inspection may greatly vary depending on feeling and distinguishable capability of the inspection personnel. In addition, the sensory inspection requires the high skill of the inspection personnel. The demand for the number of skilled personnel may also become a problem, as the overseas production sites are increased. A quantitative technology for detection of micro-distortion has been newly developed for door frames. Since the micro-distortion detection by development of the stripe density visual image method and the accept/reject judgement by person have been checked quantitatively. This paper describes the newly developed technology.