Rotation invariant feature extraction from 3-D acceleration signals


In this paper, we propose a method to extract features from three-dimensional acceleration signals. The proposed method is based on the (auto-)correlation matrix of Fourier transform features, naturally containing the correlations between the frequencies as well as the ordinary power spectrum for each frequency. The proposed features are inherently… (More)
DOI: 10.1109/ICASSP.2011.5947150


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