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Distortion in 3D shape estimation with changes in illumination

Published: 25 July 2007 Publication History

Abstract

In many domains it is very important that observers form an accurate percept of 3-dimensional structure from 2-dimensional images of scenes or objects. This is particularly relevant for designers who need to make decisions concerning the refinement of novel objects that haven't been physically built yet. This study presents the results of two experiments whose goal was to test the effect of lighting direction on the shape perception of smooth surfaces using shading and lighting techniques commonly used in modeling and design software.
The first experiment consisted of a 2 alternate forced choice task which compared the effect of the amount of shape difference between smooth surfaces lit by a single point light with whether the position of the light sources were the same or different for each surface. Results show that, as the difference between the shapes decreased, participants were more and more biased towards choosing the match shape lit by the same source as the test shape.
In the second experiment, participants had to report the orientation at equivalent probe locations on pairs of smooth surfaces presented simultaneously, using gauge figures. The surfaces could either be the same or slightly different and the light source of each shape could either be at the same relative location or offset by 90° horizontally. Participants reported large differences in surface orientation when the lighting condition was different, even when the shapes were the same, confirming the first results.
Our findings show that lighting conditions can have a strong effect on 3-dimensional perception, and suggest that great care should be taken when projection systems are used for 3D visualisation where an accurate representation is required, either by carefully choosing lighting conditions or by using more realistic rendering techniques.

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Cited By

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  • (2023)Estimating lighting direction in scenes with multiple objectsAttention, Perception, & Psychophysics10.3758/s13414-023-02718-086:1(186-212)Online publication date: 1-Aug-2023
  • (2023)Qualitative perception of 3D shape from patterns of luminance curvatureJournal of Vision10.1167/jov.23.5.1023:5(10)Online publication date: 12-May-2023
  • (2023)Targeting Shape and Material in Lighting DesignComputer Graphics Forum10.1111/cgf.1467841:7(299-309)Online publication date: 20-Mar-2023
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cover image ACM Conferences
APGV '07: Proceedings of the 4th symposium on Applied perception in graphics and visualization
July 2007
152 pages
ISBN:9781595936707
DOI:10.1145/1272582
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Publication History

Published: 25 July 2007

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Author Tags

  1. illumination
  2. phong
  3. shape from shading
  4. shape perception

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Cited By

View all
  • (2023)Estimating lighting direction in scenes with multiple objectsAttention, Perception, & Psychophysics10.3758/s13414-023-02718-086:1(186-212)Online publication date: 1-Aug-2023
  • (2023)Qualitative perception of 3D shape from patterns of luminance curvatureJournal of Vision10.1167/jov.23.5.1023:5(10)Online publication date: 12-May-2023
  • (2023)Targeting Shape and Material in Lighting DesignComputer Graphics Forum10.1111/cgf.1467841:7(299-309)Online publication date: 20-Mar-2023
  • (2021)Local Light Alignment for Multi‐Scale Shape DepictionComputer Graphics Forum10.1111/cgf.14265640:2(575-584)Online publication date: 4-Jun-2021
  • (2016)Automatic lighting design from photographic rulesProceedings of the Eurographics Workshop on Intelligent Cinematography and Editing10.5555/3056983.3056984(1-8)Online publication date: 9-May-2016
  • (2016)Flow-guided warping for image-based shape manipulationACM Transactions on Graphics10.1145/2897824.292593735:4(1-12)Online publication date: 11-Jul-2016
  • (2016)Anisotropic Ambient Volume ShadingIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2015.246796322:1(1015-1024)Online publication date: 31-Jan-2016
  • (2014)A Survey of Volumetric Illumination Techniques for Interactive Volume RenderingComputer Graphics Forum10.1111/cgf.1225233:1(27-51)Online publication date: 1-Feb-2014
  • (2013)Surface perception of planar abstractionsACM Transactions on Applied Perception10.1145/250185310:3(1-20)Online publication date: 19-Aug-2013
  • (2013)How does lighting direction affect shape perception of glossy and matte surfaces?Proceedings of the ACM Symposium on Applied Perception10.1145/2492494.2492502(9-14)Online publication date: 22-Aug-2013
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