國立臺灣師範大學電機工程學系Ti-Ho WangMing-Chih LuChen-Chien HsuYin-Yu Lu2014-10-302014-10-302007-05-011109-2777http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/32101Image Ruler and Its Applications in Distance and Area Measurement