Sébastien Mavromatis Paulo Dias Jean Sequeira 3D Reconstruction of Soccer Sequences Using Non-calibrated Video Cameras. 1254-1264 2007 conf/iciar/2007 ICIAR http://dx.doi.org/10.1007/978-3-540-74260-9_111 db/conf/iciar/iciar2007.html#MavromatisDS07