Skip to main content
. 2021 Oct 22;11:20881. doi: 10.1038/s41598-021-99846-0

Figure 1.

Figure 1

(a) A participant wearing the Pupil Labs binocular eye tracker and Motion Shadow motion capture system with the data recording computer on the participant’s back. Optometrist sunglasses were used to shade the eyes to improve eye tracker performance. (b) A sample frame from of the data from Supplementary Video 1. On the right is the view of the scene from the head camera, with gaze location indicated by the cross-hair. Below are the horizontal and vertical eye-in-head records. The high velocity regions (steep upward slope) show the saccades to the next fixation point, and the lower velocity segments (shallow downward slope) show the slower eye movement that stabilizes gaze on a particular location in the scene as the participant moves towards it, resulting a characteristic saw-tooth appearance for the eye signal. On the left, the stick figure shows the skeleton figure reconstructed from the Motion Shadow data. This is integrated with the eye signal which is shown by the blue and pink lines. Gaze location history is indicated by the Gaussian heat maps. The blue and red dots show the foot plants recorded by the motion capture system.