@INPROCEEDINGS {28251,
author={P.A. Assunção and M. Ghanbari},
doi={doi:10.1117/12.251306},
booktitle={Digital Compression Technologies & Systems for Video Communications},
title={Rate reduction techniques for MPEG-2 video bit streams},
year={1996},
month={September},
volume={2952},
pages={450-459} 
}