Pierre Martin-Granel Matthew Roach John S. Mason Camera Motion Extraction Using Correlation for Motion-Based Video Classification. 552-562 2001 conf/iwvf/2001 IWVF http://link.springer.de/link/service/series/0558/bibs/2059/20590552.htm db/conf/iwvf/iwvf2001.html#Martin-GranelRM01