Approximating the evolution of rotating moving regions using Bezier curves. Issue 4 (3rd April 2023)

• Record Type: Journal Article
• Authors: Duarte, José; Dias, Paulo; Moreira, José
• Is Part Of: International journal of geographical information science. Volume 37:Issue 4(2023)
• Page Start: 839
• Page End: 863
• Publication Date: 2023-04-03
• Subjects: Region interpolation problem -- moving regions -- moving objects databases -- spatiotemporal operations -- interpolation methods; Geography -- Data processing -- Periodicals; Information storage and retrieval systems -- Periodicals; Géomatique -- Périodiques; Systèmes d'information -- Périodiques; 910.285
• DOI: 10.1080/13658816.2022.2143504
• Languages: English
• ISSNs: 1365-8816

Abstract

Abstract: The region interpolation methods proposed in the moving objects databases literature impose restrictions that can have a significant impact on the representation of the evolution of moving regions, in particular, when a rotation occurs between two observations. In this paper, we propose a data model for moving regions that allows moving segments to rotate and change their length during their evolution between two observations and uses quadratic Bezier curves to define the trajectories of their endpoints. This introduces a new class of moving regions called rotating moving regions ( rmregion s). We present algorithms for operations involving rmregion s and we propose a strategy to allow different interpolation methods to be used in the context of moving objects databases by approximating the interpolations they create using rmregion s. We demonstrate our strategy using a reference implementation and compare results obtained when using the strategy presented here and the region interpolation methods and the spatiotemporal operations proposed in the state-of-the-art. Experimental results show that our strategy can be used to complement the region interpolation methods proposed in the moving objects databases literature.