Paper
26 October 1999 Generalized symmetric periodic extension for multiwavelet filter banks
Torsten Palfner, Erika Mueller
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Abstract
In this paper, the symmetric periodic extension method is generalized for multiwavelet filter banks. It is described how the sequences should be extended for any symmetry type of multifilter of size two and the corresponding pre- /postfilter and how the filtered sequence should be downsampled. The present paper shows that there are restrictions for any symmetry type of multifilter relating to the size of the sequence and the type of pre-/postfilter. Examples are given. The symmetric periodic extension method is compared with the periodic extension method and the effects on the transformed sequence are discussed.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Torsten Palfner and Erika Mueller "Generalized symmetric periodic extension for multiwavelet filter banks", Proc. SPIE 3813, Wavelet Applications in Signal and Image Processing VII, (26 October 1999); https://doi.org/10.1117/12.366777
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KEYWORDS
Wavelets

Optical filters

Discrete wavelet transforms

Transform theory

Convolution

Filtering (signal processing)

Finite impulse response filters

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