Theoretical and methodological approaches to apparent movement of short-range process and pattern perception |
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Authors: | Jih Jie Chang |
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Affiliation: | 1. AT&T Bell Laboratories, 07974, Murray Hill, NJ
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Abstract: | A variable raster and vector display processor interfaced with a PDP-11/23 computer is briefly described. Several experiments using random-dot cinematograms (RDCs) (raster display) and line segments (vector display) are discussed. The experiments on cooperative processes of apparent movement of RDCs and spatial-frequency-filtered RDCs showed that the average cooperative neighborhood of neural interaction is about 15 min arc of visual angle. In pattern perception, based on Julesz’s texton theory (1981) and Shaw’s attention model (1980), this study showed that the aperture of attention in serial and parallel processing is a function of feature gradient, set size, and eccentricity. |
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