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

SALVADOR Ruben, MORENO Felix, RIESGO Teresa and SEKANINA Lukáš. Evolutionary Approach to Improve Wavelet Transforms for Image Compression in Embedded Systems. EURASIP Journal on Advances in Signal Processing, vol. 2011, no. 2011, pp. 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 (UPN)
Moreno Felix (UPN)
Riesgo Teresa (UPN)
Sekanina Lukáš, prof. Ing., Ph.D. (DCSY FIT BUT)
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
Publisher
Hindawi Publishing Corporation
BibTeX
@ARTICLE{FITPUB9487,
   author = "Ruben Salvador and Felix Moreno and Teresa Riesgo and Luk\'{a}\v{s} Sekanina",
   title = "Evolutionary Approach to Improve Wavelet Transforms for Image Compression in Embedded Systems",
   pages = "1--20",
   journal = "EURASIP Journal on Advances in Signal Processing",
   volume = 2011,
   number = 2011,
   year = 2011,
   ISSN = "1687-6172",
   language = "english",
   url = "https://www.fit.vut.cz/research/publication/9487"
}
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