查看文章

. 4 video sequence can be reprmented as a trajectory curve in a high dmensiond feature space. This video curve can be an~ yzed by took Mar to those devdoped for planar cnrv=. h partidar, the classic biiary curve sphtting algorithm has been fonnd to be a nseti tool for video analysis. With a spEtting condition that checks the dimension-&@ of the curve szgrnent being spht, the video curve can be recursivdy sirnpMed and repr~ ented as a tree stmcture, and the framm that are fomtd to be junctions betieen curve segments at Merent, lev& of the tree can be used as ke-fiarn~ s to summarize the tideo sequences at Merent levds of detti. The-e keyframes can be combmed in various spatial and tempord configurations for browsing purposes. We describe a simple video player that displays the ke. fiarn~ seqnentifly and lets the user change the summarization level on the fly tith an additiond shder.