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

Table 4

Average, maximum, and minimum classification rates obtained by the HHT, the AR, and the combination of the EMD and the AR model.

Feature-extraction method	HHT	AR	EMD + AR
Classification time period (s)	0–4	0–4	0–4
Average (%)	68.14  3.06	56.29  2.73	78.40  2.07
Maximum (%)	78.33	71.67	87
Minimum (%)	53.33	30	48.33