A Novel Flexible Model for the Extraction of Features from Brain Signals in the Time-Frequency Domain

Figure 3

Illustration of an optimal horizontal image path (red line) found by a dynamic programming algorithm. The sum of signal power values along the red line is higher or equal to that of any other horizontal path. The trajectory is smoothed (black) for the robust extraction of the initial peak points’ time-frequency coordinates. The background TFR image is computed from simulated data, whose three consecutive peaks of activity are correctly connected by the path.