Pattern Recognition in Direct and Indirect View

  • Hans Strasburger
  • Ingo Rentschler


More than a century ago, it was shown that there is an acuity deficit in peripheral vision that can be compensated for by increasing stimulus size (Aubert and Foerster 1857; Wertheim 1894). The corresponding size-scaling approach, or cortical magnification concept, has accounted for much of the eccentricity variation in grating contrast sensitivity (Koenderink et al. 1978; Rovamo and Virsu 1979) and various other measures of acuity (e.g., Levi et al. 1985; Virsu et al. 1987). Yet this cannot be the whole truth since size-scaling fails to establish positional invariance for a wide range of visual tasks, like numerosity judgments (Parth and Rentschler 1984), discrimination of phase-modulated (Harvey et al. 1985) and mirror-symmetric images (Rentschler and Treutwein 1985), face recognition (Hübner et al. 1985), and recognition of numeric characters (Strasburger and Rentschler 1996); (Strasburger et al. 1991).


Spatial Attention Discrimination Learning Category Learning Peripheral Vision Contrast Threshold 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer 2007

Authors and Affiliations

  • Hans Strasburger
    • 1
    • 3
  • Ingo Rentschler
    • 2
  1. 1.Generation Research ProgramUniversity of MünchenBad TölzGermany
  2. 2.Institute of Medical PsychologyUniversity of MunichMünchenGermany
  3. 3.Department of Medical PsychologyUniversity of GöttingenGöttingenGermany

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