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• [P1183] Using Liquid Lenses to Extend the Operating Range of a Remote Gaze Tracking System
  Author(s): Tony Poitschke, Bardins Stanislavs, Erwin Bay, Klaus Bartl, Florian Laquai, Johannes Vockeroth, Gerhard Rigoll, Erich Schneider
  
  

  Abstract
  operating range. This contribution presents a novel auto-focus setup for a small and mobile remote gaze tracking system that enables a clear eye image acquisition in a large operating range. Therefore, our setup uses a miniature liquid lens to achieve smallest possible focusing latencies and installation space. Using this technology, we extended the eye tracking system's operating range to distances from 0.6 m up to 1.3 m, with a mean accuracy of 0.45¡ã in 4 exemplary working distances.

  
   

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