Actin myosin network reorganization breaks symmetry at the cell rear to spontaneously initiate polarized cell motility -- Data Supplement - JCB--Yam et al. -- The Journal of Cell Biology

[HELP with High Resolution Image Viewing]

Figure S5. Removal of stationary background features. (A) As a result of the presence of stationary background features, a false global maximum of the correlation score function occurs at (0, 0), whereas the true flow velocity is associated with the secondary local maximum at (-2, 0). (B) Subtraction of the approximate stationary background features successfully suppressed the false maximum at (0, 0), whereas the secondary local maximum associated with the true flow velocity was preserved.