ADAPTIVE HUMAN TREMOR ASSESSMENT AND ATTENUATION - Six Degree-of-Freedom Motion Analysis Utilizing Wavelets

Wesley J. E. Teskey, Mohamed Elhabiby, Naser El-Sheimy

2011

Abstract

The use of a weighted-frequency Fourier linear combiner (WFLC) algorithm for assessment and attenuation of movement disorder tremor (including essential tremor and Parkinson’s tremor) is quite prevalent; indeed, this technique is likely the most popular for such applications. The novel work presented here applies this technique to accelerometer and gyroscope data describing six degree-of-freedom motion (three translational and three rotational degrees-of-freedom). Most analysis of tremor is based on observation of generally one to three degrees-of-freedom of motion. Six degree-of-freedom motion analysis is more difficult to accomplish because of the complexity of capturing such a large amount of motion data. As well, processing accelerometer and gyroscope data to yield six degree-of-freedom motion generally involves the use of a Kalman smoother (necessary because of signal noise and drift) to ensure that accelerometer signals are correctly compensated for the influence of gravity. After data are processed using a Kalman smoother and the WFLC algorithm is applied, results are interpreted using wavelet frequency spectrum analysis to determine the frequency content before and after processing the data. Results show that the WFLC algorithm can be successfully applied to all six degrees-of-freedom of motion to largely remove tremor.

Paper Citation

in Harvard Style

J. E. Teskey W., Elhabiby M. and El-Sheimy N. (2011). ADAPTIVE HUMAN TREMOR ASSESSMENT AND ATTENUATION - Six Degree-of-Freedom Motion Analysis Utilizing Wavelets . In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011) ISBN 978-989-8425-37-9, pages 46-54. DOI: 10.5220/0003146900460054

in Bibtex Style

@conference{biodevices11,
author={Wesley J. E. Teskey and Mohamed Elhabiby and Naser El-Sheimy},
title={ADAPTIVE HUMAN TREMOR ASSESSMENT AND ATTENUATION - Six Degree-of-Freedom Motion Analysis Utilizing Wavelets},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011)},
year={2011},
pages={46-54},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003146900460054},
isbn={978-989-8425-37-9},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011)
TI - ADAPTIVE HUMAN TREMOR ASSESSMENT AND ATTENUATION - Six Degree-of-Freedom Motion Analysis Utilizing Wavelets
SN - 978-989-8425-37-9
AU - J. E. Teskey W.
AU - Elhabiby M.
AU - El-Sheimy N.
PY - 2011
SP - 46
EP - 54
DO - 10.5220/0003146900460054