Witold Czajewski Marcin Iwanowski Vision-Based Vehicle Speed Measurement Method. 308-315 2010 ICCVG (1) http://dx.doi.org/10.1007/978-3-642-15910-7_35 conf/iccvg/2010-1 db/conf/iccvg/iccvg2010-1.html#CzajewskiI10