Amplitude demodulation of interferometric signals with a 2D Hilbert transform

• Autorzy: Wielgus M.
• Języki publikacji: EN

Abstrakty

EN

The Hilbert transform and the analytic signal are widely known tools of 1D signal pro cessing. They are useful for many applications, such as AM-FM demodulation or edge detection. Developing the multidimensional generalization of this method is particularly important for the purposes of image processing. Unfortunately, it is not obvious how to generalize the transform, keeping its essential properties. In this paper I survey some ideas: basic approaches with spectral masks imitating 1D signum function, the spiral phase operator method and the method involving quaternionic Fourier transform. I present and compare how these algorithms are useful for the amplitude demodulation of typical interferometric images.

Słowa kluczowe

EN

Hilbert transform; image analysis; Fourier transform; demodulation

• Wydawca: Foundation for Young Scientists
• Czasopismo: Challenges of Modern Technology
• Rocznik: 2011
• Tom: Vol. 2, no. 1
• Strony: 8--11
• Opis fizyczny: Bibliogr. 15 poz., tab., rys.

Twórcy

autor

Wielgus M.

• Warsaw University of Technology, Faculty of Mechatronics

Bibliografia

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