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MALÝ, J. RAJMIC, P.
Originální název
Performance of discrete wavelet transform lifting scheme approach
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
The fast lifting-based approach for the discrete wavelet transform presents a very efficient way of computing wavelet coefficients. We have successfully created a Java implementation of this coding technique for the case of CDF 9/7 filterbanks, which is a starting point of proposing lossy image compression format based on DWT, that will make use of this platform. Testing of the algorithm has confirmed it to be superior when compared to the standard convolutional approach, both in terms of computational speed and memory efficiency. The algorithm is also much simpler to implement than the standard convolutional way, because we don't need to perform manipulation on the source signal in order to archieve boundary extension and cutoff (after the transform).
Klíčová slova
Discrete wavelet transform, fast lifting, Cohen-Daubechies-Feauveau wavelet 9/7, image compression, convolution
Autoři
MALÝ, J.; RAJMIC, P.
Rok RIV
2007
Vydáno
4. 9. 2007
ISBN
978-0-387-74158-1
Kniha
Proceedings of the 12th IFIP International Conference
Strany od
231
Strany do
239
Strany počet
9
BibTex
@inproceedings{BUT22897, author="Jan {Malý} and Pavel {Rajmic}", title="Performance of discrete wavelet transform lifting scheme approach", booktitle="Proceedings of the 12th IFIP International Conference", year="2007", pages="9", isbn="978-0-387-74158-1" }