| The effect of the observer vantage point on perceived distortions in linear perspective images. | |
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MedLine Citation:
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PMID: 19304608 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Some features of linear perspective images may look distorted. Such distortions appear in two drawings by Jan Vredeman de Vries involving perceived elliptical, instead of circular, pillars and tilted, instead of upright, columns. Distortions may be due to factors intrinsic to the images, such as violations of the so-called Perkins's laws, or factors extrinsic to them, such as observing the images from positions different from their center of projection. When the correct projection centers for the two drawings were reconstructed, it was found that they were very close to the images and, therefore, practically unattainable in normal observation. In two experiments, enlarged versions of images were used as stimuli, making the positions of the projection centers attainable for observers. When observed from the correct positions, the perceived distortions disappeared or were greatly diminished. Distortions perceived from other positions were smaller than would be predicted by geometrical analyses, possibly due to flatness cues in the images. The results are relevant for the practical purposes of creating faithful impressions of 3-D spaces using 2-D images. |
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Authors:
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Dejan Todorović |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Attention, perception & psychophysics Volume: 71 ISSN: 1943-3921 ISO Abbreviation: Atten Percept Psychophys Publication Date: 2009 Jan |
Date Detail:
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Created Date: 2009-03-23 Completed Date: 2009-04-20 Revised Date: 2011-02-24 |
Medline Journal Info:
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Nlm Unique ID: 101495384 Medline TA: Atten Percept Psychophys Country: United States |
Other Details:
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Languages: eng Pagination: 183-93 Citation Subset: C; IM |
Affiliation:
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Laboratory of Experimental Psychology, Department of Psychology, University of Belgrade, Belgrade, Serbia. dtodorov@f.bg.ac.rs |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Art Attention* Depth Perception* Humans Models, Theoretical Optical Illusions* Orientation* Pattern Recognition, Visual* Perceptual Distortion* |
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