Modeling and Retrieval of Moving Objects

  • Authors:
  • Mohammad Nabil;Anne H. H. Ngu;John Shepherd

  • Affiliations:
  • Department of Business and Management, Faculty of Business, Economics and Policy Studies, The University of Brunei, Darussalam;Telcordia Technologies, Austin Research Laboratory, USA. hngu@austin.rr.com;School of Computer Science and Engineering, University of New South Wales, Sydney 2052, NSW, Australia

  • Venue:
  • Multimedia Tools and Applications
  • Year:
  • 2001

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Abstract

This paper presents a symbolic formalism for modeling and retrieving video data via the moving objects contained in the video images. The model integrates the representations of individual moving objects in a scene with the time-varying relationships between them by incorporating both the notions of object tracks and temporal sequences of PIRs (projection interval relationships). The model is supported by a set of operations which form the basis of a moving object algebra. This algebra allows one to retrieve scenes and information from scenes by specifying both spatial and temporal properties of the objects involved. It also provides operations to create new scenes from existing ones. A prototype implementation is described which allows queries to be specified either via an animation sketch or using the moving object algebra.