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. 2020 Jun 20;20(12):3491. doi: 10.3390/s20123491

Figure 5.

Figure 5

Illustration of spatio-temporal conversion. (a) 2D representation of 1D raw EEG data at time t. (Empty values are represented as white.); (b) 2D EEG frame f^t from sparse ft by interpolation; (c) 3D EEG stream Si with the length w. (Note that the front dashed part is intentionally expressed to show the middle row of the 3D EEG stream.)