Abstract
Recently, wavelet analysis has gained an established role in signal and
image processing applications. In this paper, we present a discrete
wavelet transform algorithm based on the lifting scheme. The Haar
wavelet transformed and decimated signals are lifted by the ladder-type
network. A unique lifting filter is designed for in-place computation.
The present algorithm is especially suitable for microprocessor and VLSI
applications since it can be implemented by integer arithmetics using
only register shifts and summations.
Original language | English |
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Pages (from-to) | 120-122 |
Journal | IEEE Signal Processing Letters |
Volume | 12 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2005 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Haar transforms
- VLSI
- discrete wavelet transforms
- filtering theory
- image processing
- ladder networks
- microprocessor chips
- in-place computation
- integer arithmetics
- ladder-type network
- lifting filter
- microprocessor
- signal-image processing