On the Perceptual Artifacts Introduced by Packet Losses on the Forward Channel of Haptic Telemanipulation Sessions

  • Fernanda Brandi
  • Burak Cizmeci
  • Eckehard Steinbach
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7282)

Abstract

In this work we study the position and velocity signal reconstructions using predictive coding when packets are lost during telemanipulation sessions and classify the high-level haptic artifacts perceived by the users. The usage of packet-switched networks for bilateral telemanipulation systems is challenging due to several adversities such as low transmission rates, packet delays, jitter and losses. The previously proposed deadband-based haptic data reduction approaches selectively decrease the high transmission rate of the force-feedback and position/velocity samples on account of human perception limitations. Recently, an error-resilient perceptual haptic data reduction approach was proposed to address the packet losses in the feedback channel. However, the impact of faltered transmission on the forward channel and its subjective influence on the user are still an open issue and thus are treated in this paper.

Keywords

[Robotics and automation]: Teleoperators [H.5.2.g]: Haptic I/O [E.4.a]: Data compaction and compression [C.2.1.g]: Network communications [Signal Processing]: Error Correction [Information Theory]: Error Compensation 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Fernanda Brandi
    • 1
  • Burak Cizmeci
    • 1
  • Eckehard Steinbach
    • 1
  1. 1.Institute for Media TechnologyTechnische Universität MünchenMunichGermany

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