Publication Details

Evolutionary Approach to Improve Wavelet Transforms for Image Compression in Embedded Systems

SALVADOR, R.; MORENO, F.; RIESGO, T.; SEKANINA, L. Evolutionary Approach to Improve Wavelet Transforms for Image Compression in Embedded Systems. EURASIP Journal on Advances in Signal Processing, 2011, vol. 2011, no. 2011, p. 1-20. ISSN: 1687-6172.
Czech title
Evoluční přístup k vylepšení vlnkové transformace pro kompresi obrazů ve vestavěných systémech
Type
journal article
Language
English
Authors
Salvador Ruben (RG EHW)
Moreno Felix
Riesgo Teresa
Sekanina Lukáš, prof. Ing., Ph.D. (DCSY)
URL
Keywords

evolution strategy, wavelet transform, FPGA, image compression

Abstract

A bioinspired, evolutionary algorithm for optimizing wavelet transforms oriented
to improve image compression in embedded systems is proposed, modelled, and
validated here. A simplified version of an Evolution Strategy, using fixed point
arithmetic and a hardware-friendly mutation operator, has been chosen as the
search algorithm. Several cutdowns on the computing requirements have been done
to the original algorithm, adapting it for an FPGA implementation. The work
presented in this paper describes the algorithm as well as the test strategy
developed to validate it, showing several results in the effort to find
a suitable set of parameters that assure the success in the evolutionary search.
The results show how high-quality transforms are evolved from scratch with
limited precision arithmetic and a simplified algorithm. Since the intended
deployment platform is an FPGA, HW/SW partitioning issues are also considered as
well as code profiling accomplished to validate the proposal, showing some
preliminary results of the proposed hardware architecture.

Published
2011
Pages
1–20
Journal
EURASIP Journal on Advances in Signal Processing, vol. 2011, no. 2011, ISSN 1687-6172
BibTeX 
@article{BUT76274,
  author="Ruben {Salvador} and Felix {Moreno} and Teresa {Riesgo} and Lukáš {Sekanina}",
  title="Evolutionary Approach to Improve Wavelet Transforms for Image Compression in Embedded Systems",
  journal="EURASIP Journal on Advances in Signal Processing",
  year="2011",
  volume="2011",
  number="2011",
  pages="1--20",
  issn="1687-6172",
  url="http://asp.eurasipjournals.com/content/2011/1/973806/"
}
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