Long-term ambulatory monitoring system for walking behaviors of a human
Takashi Takahashi, Masashi Yamanaka, Hisao Osawa, Koichi Sagawa, Hikaru Inooka · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1993
An ambulatory measurement system for human walking is discussed. We found that the acceleration waveform at the waist varied significantly according to the sort of walking e. g. on a fiat floor or up/down stairs. The method proposed in this paper detects the variation of the waveform to identify the walking. The procedures of the method are as follows: At the beginning several acceleration waveforms for each sort of walking are measured and classified using the clustering method to make a set of reference waveforms. Next measured waveforms are compared with the clusters then we recognize which sort of walking the waveform comes from.