Systematic distortions of shape from stereopsis
The effectiveness of disparity information in defining 3-D shape was investigated by means of judgements of the shape of cylindrical continuous curved surfaces presented as random dot stereograms. At a close viewing distance, truly circular cylinders appeared elongated; at an intermediate distance,...
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| Veröffentlicht in: | Vision research (Oxford) 1991, Vol.31 (7), p.1351-1360 |
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| container_title | Vision research (Oxford) |
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| creator | Johnston, Elizabeth B. |
| description | The effectiveness of disparity information in defining 3-D shape was investigated by means of judgements of the shape of cylindrical continuous curved surfaces presented as random dot stereograms. At a close viewing distance, truly circular cylinders appeared elongated; at an intermediate distance, perception was close to veridical; and, at a far distance, cylinders appeared flattened. Indirect measures of scaling distance were calculated from these data. The results strongly suggest that the observed shape distortions are a consequence of scaling horizontal disparities with an incorrect measure of egocentric distance. |
| doi_str_mv | 10.1016/0042-6989(91)90056-B |
| format | Article |
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Psychiatry</subject><subject>Psychology. 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| ispartof | Vision research (Oxford), 1991, Vol.31 (7), p.1351-1360 |
| issn | 0042-6989 1878-5646 |
| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Binocular vision Biological and medical sciences Depth constancy Depth Perception - physiology Disparity 3-D shape perception Female Fundamental and applied biological sciences. Psychology Humans Mathematics Pattern Recognition, Visual - physiology Perception Perceptual Distortion - physiology Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Psychometrics Space life sciences Stereopsis Vision Vision Disparity - physiology Vision, Binocular - physiology |
| title | Systematic distortions of shape from stereopsis |
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