I have been trying out ImageFeatureTrack on some images of cells growing over time (images acquired via timelapse microscopy) and it looks promising. However, sometimes points don't get tracked as expected.

i.) Can anyone explain in simple terms how the features (really points) are tracked and how to improve choices of which points are likely to be successfully tracked?

ii.) Is there any way to combine the points into contours (i.e. a shape rather than just a collection of individual points) to be tracked over time?

iii.) Are there other functions in Mathematica that can find a user-input shape (in particular the boundary of the shape) of interest in an image? Sort of like face detect but more generic?

Thanks,

Kosmut