eSeeTrack—Visualizing Sequential Fixation Patterns
IEEE Transactions on Visualization and Computer Graphics
Aggregate gaze visualization with real-time heatmaps
Proceedings of the Symposium on Eye Tracking Research and Applications
Parallel scan-path visualization
Proceedings of the Symposium on Eye Tracking Research and Applications
A visual approach for scan path comparison
Proceedings of the Symposium on Eye Tracking Research and Applications
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Eye tracking experiments are the state-of-the-art technique to study questions of usability of graphical interfaces. Visualizations help to analyse eye tracking data by presenting it in a graphical way. In this paper we contribute a new visualization technique combining features of state-of-the-art visualizations for eye tracking data like heat maps, and transition matrices with a circular layout. The circular heat map transition diagram uses areas of interest (AOIs) and orders them alphabetically on a circular layout to show transitions between AOIs visually. The AOIs are colour coded segments on a circle where the colour is mapped with respect to the fixation count in each AOI. The segment size corresponds to the fixation duration within an AOI. Furthermore, the transitions between and within the AOIs of a participant are drawn as arrow lines. Key features of the circular heat map transition diagram are extraction of similar eye movement patterns of different participants, graphical representation of transitions between AOIs, finding an appropriate AOI sequence, and investigating inefficient search behaviour of participants. To be able to use the visualization technique in practice, we have implemented three variants, the AOI transition diagram, the AOI transition and completion time diagram, and the fixation transition diagram. We will show their application in an exemplary analysis of an eye tracking experiment.