Investigation of high-precision algorithm for the spot position detection for four-quadrant detector Xuan, Wang ; Xiuqin, Su ; Guizhong, Liu ; Junfeng, Han ; Rui, Wang Abstract Publication: Optik Pub Date: February 2020 DOI: 10.1016/j.ijleo.2019.163941 Bibcode: 2020Optik.203p3941X