A Unifying Theoretical Framework for Region Tracking
Kevin J. Cannons, Richard P. Wildes · 2013
Visual region-based tracking is a heavily researched general approach to following a target across a temporal image sequence. Little research, however, has addressed the interrelationships of the various proposed approaches at a theoretical level. In response to this situation, the present paper describes a unifying framework for a wide range of region trackers in terms of the amount of spatial layout that they maintain in their target representation. This framework yields a general notation from which any of these trackers can be instantiated. To illustrate the practical utility of the framework, a range of region trackers are instantiated within its formalism and used to document empirically the impact of maintaining variable amounts of spatial information during target tracking.