I am studying windowed Fourier ridges for my project. I know that it computes the instantaneous frequencies and amplitudes from the spectrogram. But I don't really know how it relates to signal processing, can anyone explain this concept to me?

  • $\begingroup$ This is a wide open question, could you please clarify what it is you would like an answer for? $\endgroup$ – Tom Kealy Sep 12 '13 at 10:53
  • $\begingroup$ Image restoration using windowed Fourier transform $\endgroup$ – freak_warrior Sep 13 '13 at 2:33
  • $\begingroup$ What exactly about Image restoration using the DFT don't you understand? Is there an algorithmic problem, or an issue you face? For example, why do you need the instantaneous frequencies/amplitudes from the spectrogram? $\endgroup$ – Tom Kealy Sep 13 '13 at 9:40

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