“…machine vision can rea lize the non-contact inspection of products whi le most round ness measuring instruments are contact-type . The development ofa machine vision sys\cm ror inspection has rece ived considerable attention [5][6][7][8][9]. The adv<llltages of using such automa~ic systems include a decrease in the time required for measurement .as well as the greater accuracy of measurement ,md better fiexibility than the conventionallllethods.…”