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Position stabilisation and lag reduction with Gaussian processes in sensor fusion system for user performance improvement

  • Shimin Feng
  • Roderick Murray-Smith
  • Andrew Ramsay
Original Article
  • 177 Downloads

Abstract

In this paper we present a novel Gaussian Process (GP) prior model-based sensor fusion approach to dealing with position uncertainty and lag in a system composed of an external position sensing device (Kinect) and inertial sensors embedded in a mobile device for user performance improvement. To test the approach, we conducted two experiments: (1) GPs sensor fusion simulation. Experimental results show that the novel GP sensor fusion helps improve the accuracy of position estimation, and reduce the lag (0.11 s). (2) User study on a trajectory-based target acquisition task in a spatially aware display application. We implemented the real-time sensor fusion system by augmenting the Kinect with a Nokia N9. In the trajectory-based interaction experiment, each user performed target selection tasks following a trajectory in (a) the Kinect system and (b) the sensor fusion system. In comparison with the Kinect time-delay system, our system enables the user to perform the task easier and faster. The MSE of target selection was reduced by 38.3 % and the average task completion time was reduced by 26.7 %.

Keywords

Gaussian processes Human-computer interaction Sensor fusion Uncertainty User interfaces 

Notes

Acknowledgments

The authors would like to thank all of the experiment participants for their time and valuable feedback, and also thank Dr. Simon Rogers and Dr. John Williamson for their helpful discussions and valuable suggestions. This research has been jointly funded by University of Glasgow and China Scholarship Council. Nokia donated some of the equipment used.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Shimin Feng
    • 1
  • Roderick Murray-Smith
    • 1
  • Andrew Ramsay
    • 1
  1. 1.School of Computing Science, University of GlasgowGlasgowUK

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