Performance Evaluation Strategies for Eye Gaze Estimation Systems with Quantitative Metrics and Visualizations.

Sensors (Basel) · 2018 · PMC6165570 · PMID 30231547

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Figure 8 shows that gaze tracking errors reduce (and efficiency increases) as the user distance from the eye tracker increases until a certain value, after which tracking errors show an increasing trend, with the best gaze tracking performance achieved between the distances 65–70 cm for the given tracker.

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