Implementation of a Real-Time Human Movement Classifier Using a Triaxial Accelerometer for Ambulatory Monitoring. Karantonis, D. M., Narayanan, M. R., Mathie, M., Lovell, N. H., & Celler, B. G. 10(1):156–167.
doi  abstract   bibtex   
The real-time monitoring of human movement can provide valuable information regarding an individual's degree of functional ability and general level of activity. This paper presents the implementation of a real-time classification system for the types of human movement associated with the data acquired from a single, waist-mounted triaxial accelerometer unit. The major advance proposed by the system is to perform the vast majority of signal processing onboard the wearable unit using embedded intelligence. In this way, the system distinguishes between periods of activity and rest, recognizes the postural orientation of the wearer, detects events such as walking and falls, and provides an estimation of metabolic energy expenditure. A laboratory-based trial involving six subjects was undertaken, with results indicating an overall accuracy of 90.8% across a series of 12 tasks (283 tests) involving a variety of movements related to normal daily activities. Distinction between activity and rest was performed without error; recognition of postural orientation was carried out with 94.1% accuracy, classification of walking was achieved with less certainty (83.3% accuracy), and detection of possible falls was made with 95.6% accuracy. Results demonstrate the feasibility of implementing an accelerometry-based, real-time movement classifier using embedded intelligence.
@article{karantonisImplementationRealtimeHuman2006,
  title = {Implementation of a Real-Time Human Movement Classifier Using a Triaxial Accelerometer for Ambulatory Monitoring},
  volume = {10},
  issn = {10897771},
  doi = {10.1109/TITB.2005.856864},
  abstract = {The real-time monitoring of human movement can provide valuable information regarding an individual's degree of functional ability and general level of activity. This paper presents the implementation of a real-time classification system for the types of human movement associated with the data acquired from a single, waist-mounted triaxial accelerometer unit. The major advance proposed by the system is to perform the vast majority of signal processing onboard the wearable unit using embedded intelligence. In this way, the system distinguishes between periods of activity and rest, recognizes the postural orientation of the wearer, detects events such as walking and falls, and provides an estimation of metabolic energy expenditure. A laboratory-based trial involving six subjects was undertaken, with results indicating an overall accuracy of 90.8\% across a series of 12 tasks (283 tests) involving a variety of movements related to normal daily activities. Distinction between activity and rest was performed without error; recognition of postural orientation was carried out with 94.1\% accuracy, classification of walking was achieved with less certainty (83.3\% accuracy), and detection of possible falls was made with 95.6\% accuracy. Results demonstrate the feasibility of implementing an accelerometry-based, real-time movement classifier using embedded intelligence.},
  number = {1},
  journaltitle = {IEEE Transactions on Information Technology in Biomedicine},
  date = {2006},
  pages = {156--167},
  keywords = {Accelerometer,Ambulatory monitoring,Home telecare,Movement classification},
  author = {Karantonis, Dean M. and Narayanan, Michael R. and Mathie, Merryn and Lovell, Nigel H. and Celler, Branko G.},
  file = {/home/dimitri/Nextcloud/Zotero/storage/RK2USFN2/Karantonis et al. - 2006 - Implementation of a real-time human movement classifier using a triaxial accelerometer for ambulatory monitor.pdf},
  eprinttype = {pmid},
  eprint = {16445260}
}
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