In addition to tracking the movement of the ball one may want to track eye position along with pupil size. Once again, we use a Dalsa Genie GigE camera to image the eye. Conveniently, it turns out that if you are imaging near 920 nm, there is sufficient light that makes its way through the brain and out of the pupil. Thus, the…
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Ball Tracking
One common way to track the movement of the ball is to use optical mice. Some disadvantages of the method is that mice need to be positioned carefully near the ball surface in each experiment, that at least least two of them are needed to recover all 3 rotation parameters, and that it is not trivial…
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