Christian Schmaltz Bodo Rosenhahn Thomas Brox Joachim Weickert Daniel Cremers Lennart Wietzke Gerald Sommer Occlusion Modeling by Tracking Multiple Objects. 173-183 2007 conf/dagm/2007 DAGM-Symposium http://dx.doi.org/10.1007/978-3-540-74936-3_18 db/conf/dagm/dagm2007.html#SchmaltzRBWCWS07