Camera Based Target Acquisition Augmented with Phosphene Sensations

  • Tatiana G. Evreinova
  • Grigori Evreinov
  • Roope Raisamo
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6180)


This paper presents the results of evaluation of the user performance in the target acquisition task using camera-mouse real time face tracking technique augmented with phosphene-based guiding signals. The underlying assumption was that during non-visual inspection of the virtual workspace (screen area), the transcutaneous electrical stimulation of the optic nerve can be considered as alternative feedback when the visual ability is low or absent. The performance of the eight blindfolded subjects was evaluated. The experimental findings show that the camera-based target acquisition augmented with phosphene sensations is an efficient input technique when visual information is not available.


Test Session Visual Feedback Blind User Target Acquisition Impaired User 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Tatiana G. Evreinova
    • 1
  • Grigori Evreinov
    • 1
  • Roope Raisamo
    • 1
  1. 1.TAUCHI Computer-Human Interaction Unit, Department of Computer SciencesUniversity of TampereFinland

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