June 11, 2024; Christina Warren

At this year's ACM Symposium on Eye Tracking Research & Applications (ETRA), the paper “How Deep Is Your Gaze? Leveraging Distance in Image-Based Gaze Analysis” received a Best Short Paper Honorable Mention Award. In their paper, Maurice Koch, Nelusa Pathmanathan, Daniel Weiskopf (A01, B01, INF, MGK, Z, Ö), and Kuno Kurzhals propose depth-adaptive thumbnails as an alternative to thumbnails with a constant size for the analysis and visualization of eye-tracking data.



Image thumbnails are a valuable data source for fixation filtering, scanpath classification, and visualization of eye tracking data. They are typically extracted with a constant size, approximating the foveated area. As a consequence, the focused area of interest in the scene becomes less prominent in the thumbnail with increasing distance, affecting image-based analysis techniques. In this work, we propose depth-adaptive thumbnails, a method for varying image size according to the eye-to-object distance. Adjusting the visual angle relative to the distance leads to a zoom effect on the focused area. We evaluate our approach on recordings in augmented reality, investigating the similarity of thumbnails and scanpaths. Our quantitative findings suggest that considering the eye-to-object distance improves the quality of data analysis and visualization. We demonstrate the utility of depth-adaptive thumbnails for applications in scanpath comparison and visualization.

Link to publication


About ETRA 2024

ETRA is a biennial symposium that addresses all aspects of eye movement research across a broad spectrum of disciplines. The aim of ETRA is to bring together computer scientists, engineers and behavioral scientists to support a shared vision for improving eye movement research and applications. This year the symposium took place from June 4-7 in Glasgow, Scotland.

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