Takayuki Okatani Koichiro Deguchi Autocalibration of a Projector-Screen-Camera System: Theory and Algorithm for Screen-to-Camera Homography Estimation. 774-781 2003 conf/iccv/2003 ICCV http://csdl.computer.org/comp/proceedings/iccv/2003/1950/02/195020774abs.htm db/conf/iccv/iccv2003-2.html#OkataniD03