Critical Configurations for Projective Reconstruction from Multiple Views.

Richard I. Hartley Fredrik Kahl Critical Configurations for Projective Reconstruction from Multiple Views. 5-47 2007 71 International Journal of Computer Vision 1 http://dx.doi.org/10.1007/s11263-005-4796-1 db/journals/ijcv/ijcv71.html#HartleyK07