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Tremor Analysis by Decomposition of Acceleration into Gravity and Inertial Acceleration Using Inertial Measurement Unit
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SYSNO ASEP 0331806 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Tremor Analysis by Decomposition of Acceleration into Gravity and Inertial Acceleration Using Inertial Measurement Unit Title Analýza třesu rozkladem zrychlení na gravitaci a inerciální zrychlení pomocí inerciální měřicí jednotky Author(s) Šprdlík, Otakar (UTIA-B) RID
Hurák, Z. (CZ)
Hoskovcová, M. (CZ)
Růžička, E. (CZ)Source Title Proceedings of the 9th International Conferece on Information Technology and Applications in Biomedicine, Citizen Centered e-Health Systems in a Global Healthcare Environmant. - Larnaca : IEEE, 2009 - ISBN 978-1-4244-5379-5 Pages s. 1-4 Number of pages 4 s. Publication form DVD Rom - DVD Rom Action 9th International Conferece on Information Technology and Applications in Biomedicine Event date 04.11.2009-07.11.2009 VEvent location Larnaca Country CY - Cyprus Event type WRD Language eng - English Country CY - Cyprus Keywords Tremor analysis ; accelerometer ; inertial measurement unit ; gravitational artifact Subject RIV BC - Control Systems Theory R&D Projects 1M0567 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10750506 - UTIA-B (2005-2011) Annotation Decomposition of acceleration was investigated as an alternative to commonly used direct spectral analysis of measured acceleration or angular velocity for tremor quantification. Orientation estimation algorithm was devised to decompose the measured acceleration into inertial acceleration caused by sensor movement in inertial reference frame and gravitational artifact. Resulting signals, beside measured acceleration and angular velocity, were used to assess tremor amplitude and frequency by spectral peak detection. The algorithm was tested on experimental data from a clinical study including patients with essential tremor. Influence of sensor calibration and connections of results to analytic approach are analyzed briefly. Workplace Institute of Information Theory and Automation Contact Markéta Votavová, votavova@utia.cas.cz, Tel.: 266 052 201. Year of Publishing 2010
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