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. 2018 May 1;18(5):1388. doi: 10.3390/s18051388

Figure 4.

Figure 4

The comparison of each contaminant insertion in the clean sEMG signal of the subject 1 sample in four repetitions of movement 7. The clean sEMG signal sample in (a) is artificially contaminated by Motion artefacts in the first column in (b), by Amplifier Saturation in the first column in (c), by Electrode displacements in the first column in (d), by Power line interference in the first column in (e) and by ECG interference in the first column in (f). The second column in (b), (c), (d) and (e) are the sEMG signal samples with the acquisition of real noise.