Title :
A non-expansive one-dimensional DWT with perfect reconstruction via simultaneous multi-octave analysis
Author :
Phadungrot, P. ; Hall, M.E. ; Sirisuk, P.
Author_Institution :
Dept. of Electron. Eng., Mahanakorn Univ. of Technol., Bangkok, Thailand
Abstract :
This paper presents an approach to realizing a non-expansive one-dimensional Discrete Wavelet Transform (DWT) with Perfect Reconstruction (PR). It is shown through a multi-octave analysis that by adjusting the output of 1-D DWT as well as modifying the corresponding inverse (reconstruction formula), an efficient overall system can be obtained. In addition, a method to construct a diagram that illustrates the relationships among wavelet coefficients is described. The proposed technique is well suited for VLSI implementation of a PR-DWT system using systolic architectures.
Keywords :
discrete wavelet transforms; signal reconstruction; systolic arrays; VLSI implementation; inverse DWT; nonexpansive 1D DWT; one-dimensional DWT; perfect reconstruction; reconstruction formula; simultaneous multi-octave analysis; systolic architectures; wavelet coefficients; Adaptive filters; Adaptive signal processing; Computer architecture; Discrete wavelet transforms; Filtering; Hardware; Noise reduction; Very large scale integration; Wavelet coefficients; Wavelet transforms;
Conference_Titel :
Circuits and Systems, 2002. APCCAS '02. 2002 Asia-Pacific Conference on
Print_ISBN :
0-7803-7690-0
DOI :
10.1109/APCCAS.2002.1115311
