Publication Details

Accelerating FPGA-based evolution of wavelet transform filters by optimized task scheduling

SALVADOR, R.; VIDAL, A.; MORENO, F.; RIESGO, T.; SEKANINA, L. Accelerating FPGA-based evolution of wavelet transform filters by optimized task scheduling. Microprocessors and Microsystems, 2012, vol. 36, no. 5, p. 427-438. ISSN: 0141-9331.
Czech title
Akcelerace evoluce vlnkové transformace v FPGA pomocí optimalizace plánování úloh
Type
journal article
Language
English
Authors
Salvador Ruben (RG EHW)
Vidal Alberto
Moreno Felix
Riesgo Teresa
Sekanina Lukáš, prof. Ing., Ph.D. (DCSY)
URL
Keywords

Evolvable hardware, FPGA, Bio-inspired architectures, Adaptive embedded
systems, Adaptive image compression, Evolutionary Computation, Evolved wavelet
transforms, Filter optimization

Abstract

Adaptive embedded systems are required in various applications. This work
addresses these needs in the area of adaptive image compression in FPGA devices.
A simplified version of an evolution strategy is utilized to optimize wavelet
filters of a Discrete Wavelet Transform algorithm. We propose an adaptive image
compression system in FPGA where optimized memory architecture, parallel
processing and optimized task scheduling allow reducing the time of evolution.
The proposed solution has been extensively evaluated in terms of the quality of
compression as well as the processing time. The proposed architecture reduces the
time of evolution by 44% compared to our previous reports while maintaining the
quality of compression unchanged with respect to existing implementations. The
system is able to find an optimized set of wavelet filters in less than 2 min
whenever the input type of data changes.

Published
2012
Pages
427–438
Journal
Microprocessors and Microsystems, vol. 36, no. 5, ISSN 0141-9331
DOI
10.1016/j.micpro.2012.02.002
UT WoS
000307419300012
BibTeX 
@article{BUT96948,
  author="Ruben {Salvador} and Alberto {Vidal} and Felix {Moreno} and Teresa {Riesgo} and Lukáš {Sekanina}",
  title="Accelerating FPGA-based evolution of wavelet transform filters by optimized task scheduling",
  journal="Microprocessors and Microsystems",
  year="2012",
  volume="36",
  number="5",
  pages="427--438",
  doi="10.1016/j.micpro.2012.02.002",
  issn="0141-9331",
  url="http://www.sciencedirect.com/science/article/pii/S0141933112000191"
}
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