Lee, Anthony J.T.Anthony J.T.LeeYu, PingPingYuChiu, Han-PangHan-PangChiuHsiu-Hui Lin2008-10-222018-06-292008-10-222018-06-292007http://ntur.lib.ntu.edu.tw//handle/246246/84925The video content management has attracted increasing attention in recent years. We have proposed a new spatio-temporal knowledge structure, called 3D C-string, to represent the spatio-temporal relations between the objects in a video and to keep track of the motions and size changes of the objects. In this paper, we propose a video algebra to infer the spatio-temporal relations between the objects in a video represented by the 3D C-string. The algebra contains four kinds of rules, namely, transitive, distributive, manipulation, and integration rules. By using those rules, all the binary relations between the objects in a video can be derived from a given 3D C-string. The algebra provides the theoretic basis for spatio-temporal reasoning and video query inference.application/pdf1410029 bytesapplication/pdfen-USjournal article10.6688/JISE.2007.23.1.1http://www.airitilibrary.com/Publication/alDetailedMesh?DocID=10162364-200701-23-1-1-19-ahttp://ntur.lib.ntu.edu.tw/bitstream/246246/84925/1/4.pdf