i have collect emg signal from 2 extensor and 2 flexor muscle for 10 motion. Is that each muscle represented one axis and input for classifier? I means i have 10 motion x 4 features ( one muscle for 1 features) for input of classifier, is that correct?
Instead of using your raw EMG data as the inputs to your classifier, you might want to implement some feature extraction methods to them (such as wavelets or fourier) and use these features for each of your raw signal sets as the input vectors to your classifier. In this case you'll have a set of N features x 10 motions x 4 muscles as your total input set.
Hello,
You should check these classical feature extraction methods (Matlab implementations) for surface EMG data:
http://www.sce.carleton.ca/faculty/chan/index.php?page=matlab
Also you need data from different individuals (N>20) and better to collect data during repetitive contractions (I suggest 4 or 5).
best wishes
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