Fig. 6
From: Proportional estimation of finger movements from high-density surface electromyography
Summary results (median and interquartile range (25–75 %)) of the offline experiment. Different performance indices were evaluated: a) the coefficient of correlation and b) the normalized mean square error between the measured and estimated force signals during active phases, c) the mean amplitude of the false activations during silent phases and d) the classification success rate. Note that for the reduced electrode sets (<24), the CSP-PE outperformed the LDA in the accuracy of force estimation as well as in the suppression of false activations. Figure e) reports the different set of electrodes selected from the 192 HD-sEMG matrix. *p < 0.01