Chantorn, Thadsanan, Nipon Theera-Umpon, and Sansanee Auephanwiriyakul. 2017. “Bracket move inspection using canny edge detection”. Asia-Pacific Journal of Science and Technology 13 (4):451-56. https://so01.tci-thaijo.org/index.php/APST/article/view/83706.