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Analytic discrete cosine harmonic wavelet transform(ADCHWT) and its application to signal/image denoising

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2 Author(s)
Shivamurti, M. ; Digital Signal Process. & Syst. Group, Nat. Aerosp. Labs. (CSIR), Bangalore, India ; Narasimhan, S.V.

A new simple and efficient analytic wavelet transform based on Discrete Cosine Harmonic Wavelet Transform DCHWT (ADCHWT) has been proposed and is applied for signal and image denoising. The analytic DCHWT has been realized by applying DCHWT to the original signal and its Hilbert transform. The shift invariance and the envelope extraction properties of the ADCHWT have been found to be very effective in denoising compared to that of DCHWT.

Published in:

Signal Processing and Communications (SPCOM), 2010 International Conference on

Date of Conference:

18-21 July 2010

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