Abstract
We propose a new design structure for the M-band dual-tree wavelet transform based on the idea of using cosine-sine modulated filter banks. The filter coefficients for the real and imaginary parts of the transform will be computed by using cosine- and sine-modulated filter banks, respectively. In the proposed structure, the zero-delay and maximum-delay matrices calculated for the cosine-modulated filter banks will be extended for sine-modulated filter banks with a few sign changes. Furthermore, the resulting structure can be easily enforced with the constraints so that the prototype is able to produce a pair of DC-leakage-free filter banks. The experimental results confirmed these advantageous properties of our proposed design structure.
Originalsprache | Englisch |
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Titel | 2014 19th International Conference on Digital Signal Processing |
Seitenumfang | 6 |
Band | 2014-January |
Herausgeber (Verlag) | IEEE |
Erscheinungsdatum | 01.08.2014 |
Seiten | 486-491 |
Aufsatznummer | 6900713 |
ISBN (elektronisch) | 978-1-4799-4612-9 |
DOIs | |
Publikationsstatus | Veröffentlicht - 01.08.2014 |
Veranstaltung | 2014 19th International Conference on Digital Signal Processing - Hong Kong, Hong Kong Dauer: 20.08.2014 → 23.08.2014 Konferenznummer: 113721 |