| Image statistics and the perception of apparent motion. | |
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MedLine Citation:
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PMID: 2148586 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The short- and long-range apparent motion processes are discussed in terms of the statistical properties of images. It is argued that the short-range process, exemplified by the random-dot kinematogram, is primarily sensitive to the dipole statistics, whereas the long-range process, exemplified by illusory occlusion, is treated by the visual system primarily in terms of the tripole and higher statistical correlation functions. The studies incorporate the balanced dot, which is a unique stimulus element that permits high pass filtering while preserving detailed positional information. Low spatial frequencies are shown to be critical for texture segregation in random-dot kinematograms, independent of the grain size or number density of texture elements. Illusory path perception in the long-range process is shown not to require low spatial frequencies, but is sensitive rather to global temporal phase coherency. These results are interpreted in terms of the respective roles of the power and phase spectra in perceptual organization. The construction of balanced dots is discussed in detail. |
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Authors:
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D L Gilden; B I Bertenthal; S Othman |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Journal of experimental psychology. Human perception and performance Volume: 16 ISSN: 0096-1523 ISO Abbreviation: J Exp Psychol Hum Percept Perform Publication Date: 1990 Nov |
Date Detail:
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Created Date: 1991-02-19 Completed Date: 1991-02-19 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 7502589 Medline TA: J Exp Psychol Hum Percept Perform Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 693-705 Citation Subset: IM |
Affiliation:
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Department of Psychology, Vanderbilt University, Nashville, Tennessee 37240. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Attention* Fourier Analysis Humans Motion Perception* Optical Illusions* Pattern Recognition, Visual* Psychophysics |
| Grant Support | |
ID/Acronym/Agency:
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HD-00678/HD/NICHD NIH HHS; HD-07036/HD/NICHD NIH HHS; HD-16195/HD/NICHD NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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