A New Algorithm for Computationally Efficient Modified Dual Tree Complex Wavelet Transform

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SK.Umar Faruq 1,* K.V.Ramanaiah 2 K.Soundararajan 3

1. Quba college of Engineering &Technology, Nellore, A.P, India

2. Y.S.R Engineering college of Yogi Vemana Univesity,Prodduturu, A.P, India

3. KITE CPES Hyderabad

* Corresponding author.

DOI: https://doi.org/10.5815/ijigsp.2014.07.06

Received: 21 Feb. 2014 / Revised: 28 Mar. 2014 / Accepted: 6 May 2014 / Published: 8 Jun. 2014

Index Terms

DWT, DTCWT, MDTCWT, Hilbert transform, Quadrature filter, computational complexity


We introduce a new generation functionally distinct redundant free Modified Dual Tree Complex Wavelet structure with improved orthogonality and symmetry properties. Traditional Dual Tree Complex Wavelets Transform (DTCWT), which incorporates two operationally similar, procedurally different Discrete Wavelet Transform (DWT) trees, is inherently redundant and computationally complex. In this paper, we propose Symmetrically Modified DTCWT (SMDTCWT) to explore the close relationships between the wavelet coefficients from the real and imaginary tree of the dual-tree CWT with an advent of a Quadrature Filter. This exploitation can reduce the level of redundancy that currently exists in a dual-tree wavelet system and decrease the computational complexity .Some of the primary constraints include that the designed algorithm should be satisfying the Hilbert transform pair condition and should have high coding gain, good directional sensitivity, and sufficient degree of regularity.

Cite This Paper

SK.Umar Faruq, K.V.Ramanaiah, K.Soundara Rajan,"A New Algorithm for Computationally Efficient Modified Dual Tree Complex Wavelet Transform", IJIGSP, vol.6, no.7, pp.44-52, 2014. DOI: 10.5815/ijigsp.2014.07.06


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