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Abstract:
We investigated the motion perception of an occluding contour by an active observer. The task of the observer was to decide whether the occluding contour of an object was a sharp edge in depth, or else belonged to a smooth surface. In a first experiment using real objects, we found a strong bias to label the contour smooth. We then replicated the experiment with virtual objects in order to carefully control for the appearance of the objects, and found an advantage for active over passive viewing. Finally, we did not find any improvement of performance when the scene was observed binocularly.
