Yuxin Jin Linmi Tao Huijun Di Naveed I. Rao Guangyou Xu Background modeling from a free-moving camera by Multi-Layer Homography Algorithm. 1572-1575 2008 ICIP http://dx.doi.org/10.1109/ICIP.2008.4712069 conf/icip/2008 db/conf/icip/icip2008.html#JinTDRX08