Monday, July 19, 2010

A Rotoscoped Animation of Rotary Nystagmus Due to BPPV

A few years ago when I made my claymation version of the Dix-Hallpike and Epley Maneuvers for BPPV, I also made a lame attempt to show an example of rotary nystagmus with a claymation eye but that didn't turn out so well and I forgot about it. I have now returned to the subject but with a new twist. I used some new animation software to create an animation of rotary nystagmus. I also threw in the claymation portion of the Dix-Hallpike video with a few modifications to parallel the test findings. It turned out even better than I expected it to. I used Toon Boom Studio 5 to rotoscopically animate a normal close-up video that I made of a face with one eye in the frame. Then I manipulated the eye layer of the drawing to simulate the rotational movements of the eye associated with BPPV. Here is the final product:

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