Turning water into rock: The inverted waves effect

Humans perceive shape in two-dimensional shaded images, and turning such an image upside down can result in inversion of the relief of this image. Previous research indicates that this inversion is caused by assumptions related to overhead illumination, global convexity and viewpoint above the surfa...

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Detalles Bibliográficos
Autores principales: Häkkinen, Jukka, Gröhn, Lauri
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2016
Materias:
Short and Sweet
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4954746/
https://www.ncbi.nlm.nih.gov/pubmed/27482371
http://dx.doi.org/10.1177/2041669515627951
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author Häkkinen, Jukka
Gröhn, Lauri
author_facet Häkkinen, Jukka
Gröhn, Lauri
author_sort Häkkinen, Jukka
collection PubMed
description Humans perceive shape in two-dimensional shaded images, and turning such an image upside down can result in inversion of the relief of this image. Previous research indicates that this inversion is caused by assumptions related to overhead illumination, global convexity and viewpoint above the surface. In our article, we describe the inverted waves effect, in which turning an image of waves upside down changes its relief and also its perceived material properties.
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spelling pubmed-49547462016-08-01 Turning water into rock: The inverted waves effect Häkkinen, Jukka Gröhn, Lauri Iperception Short and Sweet Humans perceive shape in two-dimensional shaded images, and turning such an image upside down can result in inversion of the relief of this image. Previous research indicates that this inversion is caused by assumptions related to overhead illumination, global convexity and viewpoint above the surface. In our article, we describe the inverted waves effect, in which turning an image of waves upside down changes its relief and also its perceived material properties. SAGE Publications 2016-02-01 /pmc/articles/PMC4954746/ /pubmed/27482371 http://dx.doi.org/10.1177/2041669515627951 Text en © The Author(s) 2016 http://creativecommons.org/licenses/by/3.0/ This article is distributed under the terms of the Creative Commons Attribution 3.0 License (http://www.creativecommons.org/licenses/by/3.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Short and Sweet
Häkkinen, Jukka
Gröhn, Lauri
Turning water into rock: The inverted waves effect
title Turning water into rock: The inverted waves effect
title_full Turning water into rock: The inverted waves effect
title_fullStr Turning water into rock: The inverted waves effect
title_full_unstemmed Turning water into rock: The inverted waves effect
title_short Turning water into rock: The inverted waves effect
title_sort turning water into rock: the inverted waves effect
topic Short and Sweet
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4954746/
https://www.ncbi.nlm.nih.gov/pubmed/27482371
http://dx.doi.org/10.1177/2041669515627951
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