李嗣涔Sah, Wen-JyhWen-JyhSahLee, Si-ChenSi-ChenLee2009-02-042018-07-062009-02-042018-07-061992http://ntur.lib.ntu.edu.tw//handle/246246/121175Beijingen-USAmorphous Silicon Four Quadrant Orientation Detector Array for Application in Pattern Recognitionconference paper