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The statistics of lines in natural images and implications for visual detection

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  • Lee, Ha Youn
  • Kardar, Mehran

Abstract

As borders between different regions, lines are an important element of natural images. Already at the level of the mammalian primary visual cortex (V1), neurons respond best to oriented bars. We reduce a set of images to linear segments and analyze their statistical properties. In particular, appropriately defined Fourier spectra show more power in their transverse component than in the longitudinal one. We then characterize filters that are best suited for extracting information from such images, and find some qualitative consistency with neural connections in V1. We also demonstrate that such filters are efficient in reconstructing missing lines in an image.

Suggested Citation

  • Lee, Ha Youn & Kardar, Mehran, 2010. "The statistics of lines in natural images and implications for visual detection," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 389(15), pages 2975-2980.
    • Handle: RePEc:eee:phsmap:v:389:y:2010:i:15:p:2975-2980
    DOI: 10.1016/j.physa.2010.01.004
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