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

Shivamurti, M and Narasimhan, SV (2010) Analytic discrete cosine harmonic wavelet transform(ADCHWT) and its application to signal/image denoising. In: 2010 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATIONS (SPCOM), New York.

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Abstract

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.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Analytic discrete cosine harmonic wavelet transform; Analytic wavelet transform; Dual tree complex wavelet transform; DCT; Shift invariant wavelet transform; Wavelet transform denoising
Subjects: ENGINEERING > Electronics and Electrical Engineering
Division/Department: Aerospace Electronics and Controls Division, Aerospace Electronics and Controls Division
Depositing User: Ms Indrani V
Date Deposited: 28 Jun 2011 14:27
Last Modified: 28 Jun 2011 14:27
URI: http://nal-ir.nal.res.in/id/eprint/9255

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