David J. Hirvonen Bogdan Matei Richard P. Wildes Steven C. Hsu Video to Reference Image Alignment in the Presence of Sparse Features and Appearance Change. 366-373 2001 conf/cvpr/2001 CVPR (2) http://doi.ieeecomputersociety.org/10.1109/CVPR.2001.990984 db/conf/cvpr/cvpr2001-2.html#HirvonenMWH01