Stereopsis with persisting and dynamic textures.
We measured the percept of changing depth from changing disparity in stereograms composed of random-dot textures that were either persistent or dynamically changed on every frame (a dynamic random-dot stereogram). Disparity was changed between frames to depict a surface undergoing smooth temporal changes in simulated slant. Matched depth was greater with dynamic random-dot stereograms than with persistent random-dot stereograms. These results confirm and extend earlier observations at depth threshold. We posit an explanation based on cue conflict between stereopsis and monocular depth cues.
Allison
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RS
Centre for Vision Research, York University, 103 Farquharson, Ontario, M3J 1P3, Toronto, Canada. allison@hpl.crestech.ca
Howard
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IP
D015350:Contrast Sensitivity / Q000502:physiology; D003463:Cues; D003867:Depth Perception / Q000502:physiology*; D006801:Humans; D009039:Motion Perception / Q000502:physiology*; D015357:Vision Disparity / Q000502:physiology*