Ishfaq Ahmad Zhihai He Mark Liao Fernando Pereira Ming-Ting Sun Special Issue on Video Surveillance. 1001-1005 2008 18 IEEE Trans. Circuits Syst. Video Techn. 8 http://dx.doi.org/10.1109/TCSVT.2008.929646 db/journals/tcsv/tcsv18.html#AhmadHLPS08