Identification of Visual Imagery by Electroencephalography Based on Empirical Mode Decomposition and an Autoregressive Model

Figure 4

Classification accuracy over time. (a) HHT was used to extract the curve of classification accuracy varying with time. (b) The AR model was used to extract the curve of classification accuracy varying with time. (c) A combination of EMD and AR model was used to extract the curve of classification accuracy varying with time.

(a)

(b)

(c)