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MALÝ, J. RAJMIC, P.
Original Title
Performance of discrete wavelet transform lifting scheme approach
Type
conference paper
Language
English
Original Abstract
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).
Keywords
Discrete wavelet transform, fast lifting, Cohen-Daubechies-Feauveau wavelet 9/7, image compression, convolution
Authors
MALÝ, J.; RAJMIC, P.
RIV year
2007
Released
4. 9. 2007
ISBN
978-0-387-74158-1
Book
Proceedings of the 12th IFIP International Conference
Pages from
231
Pages to
239
Pages count
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" }