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On the Impact of Haptic Data Reduction and Feedback Modality on Quality and Task Performance in a Telepresence and Teleaction System

  • Verena Nitsch
  • Julius Kammerl
  • Berthold Faerber
  • Eckehard Steinbach
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6191)

Abstract

The perceptual deadband (PD) data reduction scheme allows for a significant reduction of network load in real-time haptic communication scenarios. Aiming to ascertain how the optimum PD data reduction parameter k is best determined, an experiment was conducted in which a possible interaction of PD data reduction and visual feedback on haptic feedback quality and task performance was investigated. The results show that when haptic feedback is complemented with visual feedback, haptic data reduction affects haptic feedback quality at a lower data reduction rate than it affects task performance. When visual feedback is missing, however, this effect is reversed. These results imply that the perception of haptic feedback quality is markedly influenced by visual sensory input as well as task requirements; hence, it is recommended to consider feedback quality and task performance in the optimization of PD reduction before such schemes may be applied to industrial telepresence and teleaction systems.

Keywords

Perceptual data reduction deadband approach haptics lossy compression task performance 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Verena Nitsch
    • 1
  • Julius Kammerl
    • 2
  • Berthold Faerber
    • 1
  • Eckehard Steinbach
    • 2
  1. 1.Human Factors InstituteUniversität der Bundeswehr MünchenNeubibergGermany
  2. 2.Institute for Media TechnologyTechnische Universität MünchenMunichGermany

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