Turning water into rock: The inverted waves effect

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http://hdl.handle.net/10138/178572

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Häkkinen , J & Gröhn , L 2016 , ' Turning water into rock: The inverted waves effect ' i-Perception , vol. 7 , no. 1 . DOI: 10.1177/2041669515627951

Title: Turning water into rock: The inverted waves effect
Author: Häkkinen, Jukka; Gröhn, Lauri
Contributor: University of Helsinki, Behavioural Sciences
Date: 2016
Language: eng
Number of pages: 6
Belongs to series: i-Perception
ISSN: 2041-6695
URI: http://hdl.handle.net/10138/178572
Abstract: 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.
Subject: shape from shading
materials
surface perception
perception of water
SHAPE
515 Psychology
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