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  Predicting successes and failures of 3-D shape estimation

Fleming, R. (2008). Predicting successes and failures of 3-D shape estimation. Perception, 37(ECVP Abstract Supplement), 89.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-C807-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-903F-4
Genre: Meeting Abstract

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 Creators:
Fleming, RW1, 2, 3, Author              
Affiliations:
1Research Group Computational Vision and Neuroscience, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497805              
2Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
3biological cy, ou_persistent22              

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 Abstract: Humans are generally pretty good at visually estimating the 3-D shape of objects. However, under some circumstances we are subject to illusions. For example, in 'shape from shading', certain illumination conditions can systematically alter perceived 3-D shape. Similarly, in 'shape from texture', certain textures can induce systematic misperceptions of shape. Most computational theories of 'shape-from-x' focus on achieving accurate shape reconstruction. However, a good model of human vision, should account for the pattern or errors as well as successes. Here, in a series of gauge-figure and similarity rating tasks, we measure how perceived shape changes across variations in illumination, surface reflectance, texture, and certain shape transformations. We then show how a number of simple image statistics derived from filters tuned to different orientations and scales qualitatively predict the pattern of both successes and errors. Importantly, this shows how both similarities and differences between cues (such as shading, highlights, and texture) might be explained by a common front-end.

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 Dates: 2008-08
 Publication Status: Published in print
 Pages: -
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 Rev. Type: -
 Identifiers: BibTex Citekey: Fleming2008
DOI: 10.1177/03010066080370S101
 Degree: -

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Title: 31st European Conference on Visual Perception (ECVP 2008)
Place of Event: Utrecht, The Netherlands
Start-/End Date: 2008-08-24 - 2008-08-28

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Title: Perception
Source Genre: Journal
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Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 37 (ECVP Abstract Supplement) Sequence Number: - Start / End Page: 89 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369