Presentation 2008-03-12
Effect of Spatial Frequency Variation on Contour Integration
Masayuki KIKUCHI, Hirotaka TAJIMA,
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Abstract(in English) A series of path-paradigm based experiments, which require subjects to detect a set of Gabor-patches placed along a smooth curve (path) embedded in randomly placed Gabor -patches, has been revealed various characteristics of the function of contour integration in early vision. This study used Gabor-patches with various spatial frequencies, instead of a single spatial frequency, and compared the difference of the path- detection rate between two conditions that the spatial frequency change smoothly along paths, and that spatial frequency changes randomly along paths. As a result the former case showed higher detection rate than the latter case. This result indicates that not only the smooth change of position, orientation, curvature, and depth, but also the smooth change of spatial frequency is necessary for the clear perception of paths.
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Keyword(in English) Contour Integration / Psychophysical experiment / path-paradigm / spatial frequency / 3D perception
Paper # NC2007-123
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Committee NC
Conference Date 2008/3/5(1days)
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Registration To Neurocomputing (NC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Effect of Spatial Frequency Variation on Contour Integration
Sub Title (in English)
Keyword(1) Contour Integration
Keyword(2) Psychophysical experiment
Keyword(3) path-paradigm
Keyword(4) spatial frequency
Keyword(5) 3D perception
1st Author's Name Masayuki KIKUCHI
1st Author's Affiliation School of computer Science, Tokyo University of Technology()
2nd Author's Name Hirotaka TAJIMA
2nd Author's Affiliation School of computer Science, Tokyo University of Technology
Date 2008-03-12
Paper # NC2007-123
Volume (vol) vol.107
Number (no) 542
Page pp.pp.-
#Pages 5
Date of Issue