title: Motion parallax as an independent cue for depth perception.
abstract: The perspective transformations of the retinal image, produced by either the movement of an observer or the movement of objects in the visual world, were found to produce a reliable, consistent, and unambiguous impression of relative depth in the absence of all other cues to depth and distance. The stimulus displays consisted of computer-generated random-dot patterns that could be transformed by each movement of the observer or the display oscilloscope to simulate the relative movement information produced by a three-dimensional surface. Using a stereoscopic matching task, the second experiment showed that the perceived depth from parallax transformations is in close agreement with the degree of relative image displacement, as well as producing a compelling impression of three-dimensionality not unlike that found with random-dot stereograms.
mesh_terms: D003463:Cues; D003867:Depth Perception; D006801:Humans; D007088:Illusions; D009039:Motion Perception; D009903:Optical Illusions; D010364:Pattern Recognition, Visual