Optimization of stereo disparity estimation using the instantaneous frequency

  • M. Hansen
  • K. Daniilidis
  • G. Sommer
Stereo and Correspondence
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1296)


The use of phase differences from Gabor filter responses is a well established technique for the computation of stereo disparity. It achieves the subpixel estimation of disparity without applying a correspondence search. However, the problem of scale or central frequency selection is still unsolved. Here, we study the effects of varying filter frequency on the disparity estimation and we compare it to the use of the instantaneous frequency. The analytical results on several models of intensity and disparity variation show robustness of the disparity estimates against variations in the filter-wavelength.


Instantaneous Frequency Gabor Filter Constant Model Local Phase Signal Wavelength 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • M. Hansen
    • 1
  • K. Daniilidis
    • 1
  • G. Sommer
    • 1
  1. 1.Institut für Informatik und Prakt. MathematikChristian-Albrechts Universität KielKiel

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