Fig. 3. STICS analysis of a Quicktime movie from fig. 1A described in Ponti et al. (Ponti et al., 2004). Scale bar, 5 µm; velocity scale bar, 0.5 µm/minute. The data matches very well with data calculated using speckle tracking in the paper, revealing faster dynamics within the lamellipodia at the edge of the cell and slower dynamics in the lamella. Note that the analysis was done on the Quicktime movie and some data compression may have occurred relative to the raw speckle data. Also, the pixel size was estimated using the scale bar from the figure so velocity estimates are only approximate.