Occlusion improves the interpolation of sampled motion

► We studied sampled motion sequences with spatial gaps between stations. ► When the gaps were attributable to occlusion, motion was perceived as smoother. ► We conclude that amodal completion can enhance the interpolation of sampled motion. Several studies show that the perception of occlusion may...

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Bibliographic Details
Published in:Vision research (Oxford) 2012-06, Vol.62, p.17-25
Main Authors: Scherzer, Tom R., Ekroll, Vebjørn
Format: Article
Language:English
Subjects:
Amodal completion
Cues
Humans
Motion interpolation
Motion Perception - physiology
Occlusion
Perceptual Masking - physiology
Photic Stimulation - methods
Space Perception - physiology
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Summary:► We studied sampled motion sequences with spatial gaps between stations. ► When the gaps were attributable to occlusion, motion was perceived as smoother. ► We conclude that amodal completion can enhance the interpolation of sampled motion. Several studies show that the perception of occlusion may affect various aspects of motion perception. Here we present data indicating that occlusion cues also influence the visual interpolation of sampled motion. Normally, sampled motion stimuli are perceived as less smooth and jerkier when the spatial gaps between successive presentations of the “moving” target stimulus increase. Adding surfaces occluding the spatial gaps, however, we found that the perceived smoothness of motion was not only better, but also independent of the gap width. We argue that this effect occurs because the visual system attributes the interruptions in the motion path to occlusion rather than to the moving object itself.
ISSN:0042-6989
1878-5646
DOI:10.1016/j.visres.2012.02.015