An occlusion-related mechanism of depth perception based on motion and interocular sequence.
Objects occlude other objects in natural scenes, and this occlusive relationship increases the spatio-temporal complexity of sensory inputs to the two eyes, especially when objects are moving. We ask whether the visual system can employ clever strategies which make use of real-world constraints on inputs to the eyes to determine the depth of objects. Employing psychophysical methods, we found that occlusion-related geometric rules, which constrain the relationship between the direction of motion and the order and asynchrony of eyes, are implemented at early stages of cortical visual processing.
Shimojo
S
S
Smith-Kettlewell Eye Research Institute, San Francisco, California 94115.
Silverman
G H
GH
Nakayama
K
K
D003867:Depth Perception; D006801:Humans; D008954:Models, Biological; D009039:Motion Perception; D009799:Ocular Physiological Phenomena; D014785:Vision, Ocular