Capturing and Modeling Geographic Object Change: A SpatioTemporal Gazetteer Framework
Peggy Agouris, Kate M. Beard, Giorgos Mountrakis, Anthony Stefanidis · Photogrammetric Engineering & Remote Sensing · 2000
contained in the information environment, and A SpatioTemporal Gazetteer as a model to manage change c the ability to arrange information content by dimensions in a information at the geographic entity instance level is variety of ways to better respond to specific user needs. presented. The Gazetteer framework links an image repository, In this paper we present an overview of the SpatioTempothat is the source of change information, to instances of ral Gazetteer and a modified template matching approach used geographic entities, and is change specific to these instances. to capture changes to geospatial objects. The paper is organized The ability to quickly detect and extract change from image in the following manner. The next section discusses the role of data is an essential component of the model. The paper also our SpatioTemporal Gazetteer framework in support of decipresents a modified template matching function used to detect sion making in applications requiring rapid access to changes change, and describes the association of this function with the in geospatial information. This is followed by a presentation on spatiotemporal gazetteer. The change detection function the SpatioTemporal Gazetteer framework, its components, embedded within the spatiotemporal gazetteer creates a and the way they are interrelated. The next section presents the foundation for up-to-date geospatial information and change image matching tool used to capture change and store it within information that can serve rapid-response decision-making the Gazetteer environment. Experimental results and final conapplications. clusions are then presented.