FPGA Implementation of SOBI to Perform BSS in Real Time

Apurva Rathi, Xun Zhang, Francois Vialatte

Abstract

Blind Source Separation (BSS) is an effective and powerful tool for source separation and artifact removal in EEG signals. For the real time applications such as Brain Computer Interface (BCI) or clinical Neuro-monitoring, it is of prime importance that BSS is effectively performed in real time. The motivation to implement BSS in Field Programmable Gate Array (FPGA) comes from the hypothesis that the performance of the system could be significantly improved in terms of speed considering the optimal parallelism environment that hardware provides. In this paper, FPGA is used to implement the SOBI algorithm of EEG with a fixed-point algorithm. The results obtained show that, FPGA implementation of SOBI reduces the computation time and thus has great potential for real time.

References

  1. Carrie A. Joyce, A Irina F. Gorodnitsky, B And Marta Kutasb,c, “Automatic removal of eye movement and blink artifacts from EEG data using blind component separation”, Psychophysiology, 41 (2004)
  2. S. P. Fitzgibbon,* D. M. W. Powers,† K. J. Pope,† C. R. Clark*, “Removal of EEG Noise and Artifact Using Blind Source Separation”, J Clin Neurophysiol. 2007 Jun;24(3):232-43.
  3. Arnaud Delorme1,2, Terrence Sejnowski1, Scott Makeig2, “Enhanced detection of artifacts in EEG data using higher-order statistics and independent component analysis”, NeuroImage 34 (2007) 1443-1449
  4. Yan Wang1, Matthew T. Sutherland2, Lori L. Sanfratello2, Akaysha C. Tang234, “Single-Trial Classification Of Erps Using Second-Order Blind Identification (Sobi)”,
  5. Wei-Chung Huang1, Shao-Hang Hung1, Jen-Feng Chung1,2, Meng-Hsiu Chang1, Lan-Da Van2, and Chin-Teng Lin1,2, “FPGA Implementation of 4- Channel ICA for On-line EEG Signal Separation”, Biomedical Circuits and Systems conference, 2008. BIOCAS.2008.IEEE
  6. Kuo-Kai Shyu, Member, IEEE, Ming-Huan Lee, Yu-Te Wu, and Po-Lei Lee, “Implementation of Pipelined FastICA on FPGA for Real-Time Blind Source Separation”, IEEE Transactions on Neural Networks, vol. 19, No. 6, June 2008
  7. Zhongfeng Li and Qiuhua Lin, “FPGA Implementation of Infomax BSS Algorithm with Fixed-Point Number Representation ”, Neural Networks and Brain, 2005. ICNN&B 7805 An International Conference on 13 - 15 Oct. 2005
  8. Hongtao Du and Hairong Qi, “An FPGA Implementation of Parallel ICA for Dimensionality Reduction in Hyperspectral Images”, Geoscience and Remote Sensing Symposium, 2004. IGARSS 7804 . Proceedings. 2004 IEEE International
  9. L. Tong, V. C. Soon, R. Liu, and Y. Huang, “AMUSE: A new blind identification algorithm,” in Proc. ISCAS, New Orleans, LA, 1990.
  10. A. Belouchrani, K. Abed Meraim, J.-F. Cardoso, and E. Moulines, “Second-order blind separation of correlated sources,” in Proc. Int. Conf. Digital Signal Processing, Cyprus, 1993, pp. 346-351.
  11. Adel Belouchrani, Member, IEEE, Karim Abed-Meraim, Jean-François Cardoso, Member, IEEE and Eric Moulines, Member, IEEE, “A Blind Source Separation Technique Using Second-Order Statistics”, IEEE Transactions on Signal Processing, vol. 45, no. 2, February 1997
Download


Paper Citation


in Harvard Style

Rathi A., Zhang X. and Vialatte F. (2012). FPGA Implementation of SOBI to Perform BSS in Real Time . In Proceedings of the 4th International Joint Conference on Computational Intelligence - Volume 1: SSCN, (IJCCI 2012) ISBN 978-989-8565-33-4, pages 727-731. DOI: 10.5220/0004182507270731


in Bibtex Style

@conference{sscn12,
author={Apurva Rathi and Xun Zhang and Francois Vialatte},
title={FPGA Implementation of SOBI to Perform BSS in Real Time},
booktitle={Proceedings of the 4th International Joint Conference on Computational Intelligence - Volume 1: SSCN, (IJCCI 2012)},
year={2012},
pages={727-731},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004182507270731},
isbn={978-989-8565-33-4},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 4th International Joint Conference on Computational Intelligence - Volume 1: SSCN, (IJCCI 2012)
TI - FPGA Implementation of SOBI to Perform BSS in Real Time
SN - 978-989-8565-33-4
AU - Rathi A.
AU - Zhang X.
AU - Vialatte F.
PY - 2012
SP - 727
EP - 731
DO - 10.5220/0004182507270731