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Aggregate Gaze Visualization with Real-time Heatmaps

Andrew T. Duchowski, Margaux M. Price, Miriah Meyer, Pilar Orero
School of Computing, Clemson University
ACM Symposium on Eye Tracking Research & Applications (ETRA), 2012

@inproceedings{duchowski2012aggregate,

   title={Aggregate Gaze Visualization with Real-time Heatmaps},

   author={Duchowski, A. and Meyer, M. and Orero, P. and Price, M.},

   booktitle={Proceedings of the Eye Tracking Research & Applications Symposium (ETRA)},

   year={2012}

}

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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.
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