Talks given at NuHAG events

Gabor Ridge Functions: theory and applications

  Loukas Grafakos
    University of Missouri

  given at  strobl07 (21.06.07 14:00)
  id:  435
  length:  40min
  status:  accepted
  type:  talk
We discuss a directionally sensitive time-frequency decomposition and representation of functions. The coefficients of this representation allow one to measure the ``amount'' of frequency the function (signal, image) contains in a certain time interval, and also in a certain direction. This has been previously achieved using a version of wavelets called ridgelets, developed by Candes, but in this work we discuss an approach based on time-frequency or Gabor elements. Applications to image processing and medical imaging are presented.

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