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Authors: Nicola Carta ; Danilo Pani and Luigi Raffo

Affiliation: University of Cagliari, Italy

Keyword(s): Wavelet Denoising, Neural Signal Processing, FPGA, Design Tools.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Instruments and Devices ; Brain-Computer Interfaces ; Devices ; Embedded Signal Processing ; Human-Computer Interaction ; Implantable Electronics ; Low-Power Design ; Physiological Computing Systems

Abstract: Wavelet denoising represents a common preprocessing step for several biomedical applications exposing low SNR. When the real-time requirements are joined to the fulfilment of area and power minimization for wearable/ implantable applications, such as for neuroprosthetic devices, only custom VLSI implementations can be adopted. In this case, every part of the algorithm should be carefully tuned. The usually overlooked part related to threshold estimation is deeply analysed in this paper, in terms of required hardware resources and functionality, exploiting Xilinx System Generator for the design of the architecture and the co-simulation. The analysis reveals how the widely used Median Absolute Deviation (MAD) could lead to hardware implementations highly inefficient compared to other dispersion estimators demonstrating better scalability, relatively to the specific application.

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Paper citation in several formats:
Carta, N.; Pani, D. and Raffo, L. (2014). VLSI Wavelet Denoising of Neural Signals - Critical Appraisal of Different Algorithmic Solutions for Threshold Estimation. In Proceedings of the International Conference on Biomedical Electronics and Devices (BIOSTEC 2014) - BIODEVICES; ISBN 978-989-758-013-0; ISSN 2184-4305, SciTePress, pages 45-52. DOI: 10.5220/0004865700450052

@conference{biodevices14,
author={Nicola Carta. and Danilo Pani. and Luigi Raffo.},
title={VLSI Wavelet Denoising of Neural Signals - Critical Appraisal of Different Algorithmic Solutions for Threshold Estimation},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices (BIOSTEC 2014) - BIODEVICES},
year={2014},
pages={45-52},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004865700450052},
isbn={978-989-758-013-0},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the International Conference on Biomedical Electronics and Devices (BIOSTEC 2014) - BIODEVICES
TI - VLSI Wavelet Denoising of Neural Signals - Critical Appraisal of Different Algorithmic Solutions for Threshold Estimation
SN - 978-989-758-013-0
IS - 2184-4305
AU - Carta, N.
AU - Pani, D.
AU - Raffo, L.
PY - 2014
SP - 45
EP - 52
DO - 10.5220/0004865700450052
PB - SciTePress