Fig 5. Spatiotemporal clustering of cell edge motion into spectrally homogeneous regions.

(a) Statistical region merging (SRM) clustering at different Q-values (defining the delicacy of clusters) for a spontaneously protruding Cos7 cell using weighted instantaneous frequencies of all IMFs as a feature vector. (b) Ratio between intra- and inter-region variance as a function of the logarithm of Q. (c) Multiscale clustering using instantaneous amplitudes of all IMFs as a feature vector. (d) Multiscale clustering using weighted instantaneous frequency of only IMF1 as a feature vector.