Patrick Piscaglia Andrea Cavallaro Michel Bonnet Damien Douxchamps High Level Description of Video Surveillance Sequences. 316-331 1999 conf/ecmast/1999 ECMAST http://dx.doi.org/10.1007/3-540-48757-3_22 db/conf/ecmast/ecmast1999.html#PiscagliaCBD99