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Influence of Background Patterns in the Reverse Perspective Illusion
The reverse perspective (RP) illusion is classified as a motion illusion due to inverted depth perception, similar to the Mach book and hollow mask illusions. Distortional motion of a rigid object surface is observed when an observer moves in front of the object which has a texture pattern giving in...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5393832/ http://dx.doi.org/10.1068/ic391 |
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author | Hayashi, Takefumi Kirita, Shingo Shiraiwa, Aya Cook, Norman D. |
author_facet | Hayashi, Takefumi Kirita, Shingo Shiraiwa, Aya Cook, Norman D. |
author_sort | Hayashi, Takefumi |
collection | PubMed |
description | The reverse perspective (RP) illusion is classified as a motion illusion due to inverted depth perception, similar to the Mach book and hollow mask illusions. Distortional motion of a rigid object surface is observed when an observer moves in front of the object which has a texture pattern giving inverted perspective cues (RP object). In this research, we studied the influence of the background pattern of the RP objects on the strength of the illusion. To perform quantitative evaluation, a stereo computer-graphics technique was used. Computer generated right- and left-eye images of an RP object were shown separately to the subjects' eyes through a haploscope. Using a computer key board, they adjusted the binocular disparity of the stereo images so that depth inversion due to the surface texture occurs. We evaluated the strength of the illusion by the critical value of the disparity and found that the background texture is an important factor determining the strength of the RP illusion. Especially, the texture in the horizontal direction creates stronger depth inversion effect compared to the vertical pattern. Using our experimental system, the influences of various pictorial cues on the RP illusion can be studied quantitatively. |
format | Online Article Text |
id | pubmed-5393832 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-53938322017-04-24 Influence of Background Patterns in the Reverse Perspective Illusion Hayashi, Takefumi Kirita, Shingo Shiraiwa, Aya Cook, Norman D. Iperception Article The reverse perspective (RP) illusion is classified as a motion illusion due to inverted depth perception, similar to the Mach book and hollow mask illusions. Distortional motion of a rigid object surface is observed when an observer moves in front of the object which has a texture pattern giving inverted perspective cues (RP object). In this research, we studied the influence of the background pattern of the RP objects on the strength of the illusion. To perform quantitative evaluation, a stereo computer-graphics technique was used. Computer generated right- and left-eye images of an RP object were shown separately to the subjects' eyes through a haploscope. Using a computer key board, they adjusted the binocular disparity of the stereo images so that depth inversion due to the surface texture occurs. We evaluated the strength of the illusion by the critical value of the disparity and found that the background texture is an important factor determining the strength of the RP illusion. Especially, the texture in the horizontal direction creates stronger depth inversion effect compared to the vertical pattern. Using our experimental system, the influences of various pictorial cues on the RP illusion can be studied quantitatively. SAGE Publications 2011-05-01 2011-05 /pmc/articles/PMC5393832/ http://dx.doi.org/10.1068/ic391 Text en © 2011 SAGE Publications Ltd. Manuscript content on this site is licensed under Creative Commons Licenses http://creativecommons.org/licenses/by-nc-nd/3.0/ This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License (http://www.creativecommons.org/licenses/by-nc-nd/3.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access page (http://www.uk.sagepub.com/aboutus/openaccess.htm). |
spellingShingle | Article Hayashi, Takefumi Kirita, Shingo Shiraiwa, Aya Cook, Norman D. Influence of Background Patterns in the Reverse Perspective Illusion |
title | Influence of Background Patterns in the Reverse Perspective Illusion |
title_full | Influence of Background Patterns in the Reverse Perspective Illusion |
title_fullStr | Influence of Background Patterns in the Reverse Perspective Illusion |
title_full_unstemmed | Influence of Background Patterns in the Reverse Perspective Illusion |
title_short | Influence of Background Patterns in the Reverse Perspective Illusion |
title_sort | influence of background patterns in the reverse perspective illusion |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5393832/ http://dx.doi.org/10.1068/ic391 |
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