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  A psychophysical and computational analysis of intensity-based stereo.

Mallot, H., Arndt, P., & Bülthoff, H. (1996). A psychophysical and computational analysis of intensity-based stereo. Biological Cybernetics, 75(3), 187-198. doi:10.1007/s004220050286.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-EB08-E Version Permalink: http://hdl.handle.net/21.11116/0000-0005-E6E7-3
Genre: Journal Article

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 Creators:
Mallot, HA1, 2, Author              
Arndt, PA, Author
Bülthoff, HH1, 2, Author              
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: WWe describe two psychophysical experiments testing predictions of the square difference mechanism we have previously proposed for intensity–based stereo. Experiment 1 assesses the relative contributions of disparity and contrast to intensity–based stereo by measuring detection thresholds. The product of disparity and contrast at threshold is shown to be constant. In experiment 2, we measure quantitatively the global depth position perceived in stereograms of curved, smoothly shaded surfaces. The results show that disparity averaging over the surface involves a contrast-dependent weighting function. The results from both experiments are consistent with predictions derived from the square difference mechanism. The relation of this mechanism to feature correspondence stereopsis and shape–from–shading is discussed and a general framework for assessing the modularity of stereopsis is presented.

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 Dates: 1996-10
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: DOI: 10.1007/s004220050286
BibTex Citekey: 527
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Title: Biological Cybernetics
  Other : Biol. Cybern.
Source Genre: Journal
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Publ. Info: Berlin : Springer
Pages: - Volume / Issue: 75 (3) Sequence Number: - Start / End Page: 187 - 198 Identifier: ISSN: 0340-1200
CoNE: https://pure.mpg.de/cone/journals/resource/954927549307