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Fig. 4 | Journal of NeuroEngineering and Rehabilitation

Fig. 4

From: A geometric method for computing ocular kinematics and classifying gaze events using monocular remote eye tracking in a robotic environment

Fig. 4

Representative example of smooth pursuits of objects moving in the horizontal plane towards the participant (negative Y direction). On the left is a vertical rectangle and the yellow circles show the locations of the foveal visual circles (FVC) that will result in a successful pursuit. The dashed blue ellipse shows the approximate area around the rectangle within which the FVCs need to lie for a successful pursuit. On the right is a FVC next to a circular red target. The inset shows an enlarged version of the circular target and FVC. For a successful pursuit, the distance between the center of the FVC and target should be continuously less than or equal to the sum of the foveal visual radius (FVR) and target radius for at least the Minimum Pursuit Duration (40 ms). The equation in the top part of the Figure shows the conditions that ought to be continuously satisfied for the Minimum Pursuit Duration

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