What is the role of eye-tracking in active visualization?
If active visualization involves presenting images that follow the eye, it might appear that eye-tracking is an indispensable part of this research. This is actually false. In visualization, we may assume that the visualizer has a stake in the production of useful images. The user will therefore cooperate by informing the image generation process where the eye is currently focussed on. Any reasonable motor input device (such as the mouse) can be used. Of course, if we automatically track the user’s eye, this can improve the usability of our system.
