@inproceedings{8ac6e1ca8941458da93577647f41651e,
title = "Multiscale PCA to distinguish regular and irregular surfaces using tri axial head and trunk acceleration signals",
abstract = "![CDATA[This study uses multiscale principal component analysis (MSPCA) signal processing technique in order to distinguish the two different surfaces, tiled (regular) and cobbled (irregular) using accelerometry data (recorded from MTx sensors). Two MTx sensors were placed on the head and trunk of the subject while the subject walked freely over the regular and irregular surfaces during a free walk. 3D acceleration signals, vertical, medio lateral (ML) and anterior-posterior (AP) were recorded for the head and trunk segments and compared for the free walk on a defined route. The magnitude of the ML and AP acceleration obtained from the MTx sensors (for both head & trunk) was higher when walking over the irregular (cobbled) surface as compared to the regular (tiled) surface. The accelerometry data was initially analysed using MSPCA and was later classified using naive Bayesian classifier with >86% accuracy. This research study demonstrates that MSPCA can be used to distinguish the regular and irregular surfaces. The proposed method could be very useful as an automated method for classification of the two surfaces.]]",
keywords = "accelerometry, principal component analysis, signal processing, walking",
author = "Gita Pendharkar and Naik, {Ganesh R.} and Amit Acharyya and Nguyen, {Hung T.}",
year = "2015",
doi = "10.1109/EMBC.2015.7319301",
language = "English",
isbn = "9781424492718",
publisher = "IEEE",
pages = "4122--4125",
booktitle = "Biomedical Engineering: A Bridge to Improve the Quality of Health Care and the Quality of Life: Proceedings of the 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2015), Milano, Italy, 25-29 August 2015",
note = "IEEE Engineering in Medicine and Biology Society. Annual Conference ; Conference date: 25-08-2015",
}