Aggregate gaze visualization with real-time heatmaps

  • Authors:
  • Andrew T. Duchowski;Margaux M. Price;Miriah Meyer;Pilar Orero

  • Affiliations:
  • Clemson University;Clemson University;University of Utah;Universitat Autònoma de Barcelona

  • Venue:
  • Proceedings of the Symposium on Eye Tracking Research and Applications
  • Year:
  • 2012

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Abstract

A GPU implementation is given for real-time visualization of aggregate eye movements (gaze) via heatmaps. Parallelization of the algorithm leads to substantial speedup over its CPU-based implementation and, for the first time, allows real-time rendering of heatmaps atop video. GLSL shader colorization allows the choice of color ramps. Several luminance-based color maps are advocated as alternatives to the popular rainbow color map, considered inappropriate (harmful) for depiction of (relative) gaze distributions.