GazeFlow Webcam Eye Tracking engine

GazeFlow is the Webcam Eye Tracking engine on which GazeRecorder, GazePointer and GazeBoard rely. GazeFlow is based on analysis of the optical flow of webcam images.

Accuracy

An accuracy and comparison test showed that GazeFlow’s accuracy measurements (< 0.9˚-1.0˚) are, higher than the desired level of accuracy indicated by literature, especially when the head is allowed to move freely. These measurements are however comparable to the accuracy measurements of the compared eye tracking device using infrared light (SMI Red 250).

The full report can be found here

The different heatmaps generated by both eye trackers can be found here

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