Computer-aided tracking of physical entities

摘要: The tracking of physical entities within a space such that computer-implemented computations (or ambient computing) may be performed on the features and/or activity space. A space-time data structure corresponding to is set up. For at least one entity space, feature(s) sensed different instances in time. That feature stored an associated with structure. This done for multiple location using structures are each computing system navigate perform computation entities, and