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  The Independent Components of Natural Images are Perceptually Dependent

Bethge, M., Wiecki, T., & Wichmann, F. (2007). The Independent Components of Natural Images are Perceptually Dependent. In B. Rogowitz, T. Pappas, & S. Daly (Eds.), Human Vision and Electronic Imaging XII: Proceedings of the SPIE Human Vision and Electronic Imaging Conference 2007 (pp. 1-12). Bellingham, WA, USA: SPIE.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-CEB7-A Version Permalink: http://hdl.handle.net/21.11116/0000-0003-E8BD-3
Genre: Conference Paper

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 Creators:
Bethge, M1, 2, Author              
Wiecki, TV1, 2, Author              
Wichmann, FA2, 3, Author              
Affiliations:
1Research Group Computational Vision and Neuroscience, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497805              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              
3Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497795              

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 Abstract: The independent components of natural images are a set of linear filters which are optimized for statistical independence. With such a set of filters images can be represented without loss of information. Intriguingly, the filter shapes are localized, oriented, and bandpass, resembling important properties of V1 simple cell receptive fields. Here we address the question of whether the independent components of natural images are also perceptually less dependent than other image components. We compared the pixel basis, the ICA basis and the discrete cosine basis by asking subjects to interactively predict missing pixels (for the pixel basis) or to predict the coefficients of ICA and DCT basis functions in patches of natural images. Like Kersten (1987) we find the pixel basis to be perceptually highly redundant but perhaps surprisingly, the ICA basis showed significantly higher perceptual dependencies than the DCT basis. This shows a dissociation between statistical and perceptual dependence measures.

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 Dates: 2007-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1117/12.711133
BibTex Citekey: 4304
 Degree: -

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Title: SPIE Human Vision and Electronic Imaging Conference 2007
Place of Event: San Jose, CA, USA
Start-/End Date: 2007-01-28 - 2007-02-01

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Title: Human Vision and Electronic Imaging XII: Proceedings of the SPIE Human Vision and Electronic Imaging Conference 2007
Source Genre: Proceedings
 Creator(s):
Rogowitz, BE, Editor
Pappas, TN, Editor
Daly, SJ, Editor
Affiliations:
-
Publ. Info: Bellingham, WA, USA : SPIE
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 1 - 12 Identifier: ISBN: 978-0-8194-6605-1

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Title: Proceedings of the SPIE
Source Genre: Series
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Pages: - Volume / Issue: 6492 Sequence Number: - Start / End Page: - Identifier: ISSN: 0277-786X