Transition from Phase III to Phase IV in the Proof-of-Principle Analysis.

<p>Region growing was used to determine the size of the area which was not occupied by the cells. The figure gives this size in pixels as a function of the frame number as it was displayed in the Viewport of IQM. The transition from phase III (orange) to phase IV (green) is identifiable as the frame at which the size of the spot reaches and stays at its minimum (frame #512).