@ARTICLE {2289,
author={M. Coimbra and M. D. Davies},
doi={},
journal={IEEE Transactions on Circuits and Systems for Video Technology},
title={Approximating optical flow within the MPEG-2 compressed domain},
year={2005},
month={January},
volume={15},
number={1},
pages={103-107},
ISSN={1051-8215}
}