Publication result detail

Performance of discrete wavelet transform lifting scheme approach

MALÝ, J.; RAJMIC, P.

Original Title

Performance of discrete wavelet transform lifting scheme approach

English Title

Performance of discrete wavelet transform lifting scheme approach

Type

Paper in proceedings (conference paper)

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).

English 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

Key words in English

Discrete wavelet transform, fast lifting, Cohen-Daubechies-Feauveau wavelet 9/7, image compression, convolution

Authors

MALÝ, J.; RAJMIC, P.

Released

04.09.2007

ISBN

978-0-387-74158-1

Book

Proceedings of the 12th IFIP International Conference

Pages from

231

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"
}