Cahya Ong Sijun Lu Jian Zhang An Approach for Enhancing the Results of Detecting Foreground Objects and Their Moving Shadows in Surveillance Video. 242-249 2008 DICTA http://dx.doi.org/10.1109/DICTA.2008.39 conf/dicta/2008 db/conf/dicta/dicta2008.html#OngLZ08