Minimal conditions for the visual detection of structure and motion in three dimensions.
Human observers detected the global three-dimensional organization of visual patterns consisting of only two successive frames of randomly positioned dots, corresponding to projections of a rotating sphere. A perfectly coherent sphere yielded a stable perceptual organization that was detected more accurately than other slightly less organized patterns.
D006801:Humans; D009038:Motion; D009039:Motion Perception; D014785:Vision, Ocular; D014796:Visual Perception