A Trajectory-Preserving Synchronization Method for Collaborative Visualization

  • Authors:
  • Lewis W. F. Li;Frederick W. B. Li;Rynson W. H. Lau

  • Affiliations:
  • -;-;-

  • Venue:
  • IEEE Transactions on Visualization and Computer Graphics
  • Year:
  • 2006

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Abstract

In the past decade, a lot of research work has been conductedto support collaborative visualization among remote users over thenetworks, allowing them to visualize and manipulate shared data forproblem solving. There are many applications of collaborativevisualization, such as oceanography, meteorology and medical science. Tofacilitate user interaction, a critical system requirement forcollaborative visualization is to ensure that remote users will perceivea synchronized view of the shared data. Failing this requirement, theuser隆娄s ability in performing the desirable collaborative tasks will beaffected. In this paper, we propose a synchronization method to supportcollaborative visualization. It considers how interaction with dynamicobjects is perceived by application participants under the existence ofnetwork latency, and remedies the motion trajectory of the dynamicobjects. It also handles the false positive and false negative collisiondetection problems. The new method is particularly well designed forhandling content changes due to unpredictable user interventions orobject collisions. We demonstrate the effectiveness of our methodthrough a number of experiments.