Reinhard Koch Marc Pollefeys Luc J. Van Gool Multi Viewpoint Stereo from Uncalibrated Video Sequences. 55-71 http://link.springer.de/link/service/series/0558/bibs/1406/14060055.htm 1998 conf/eccv/1998-1 ECCV (1) db/conf/eccv/eccv1998-1.html#KochPG98