Bringing Them Together Velocity Imaging

Following the discussion on moments, this leads us to the following requirements  

As in imaging, aliasing can occur if velocities outside the FOF exist. For measurements of average velocities, the same condition holds if the total phase shift due to velocity exceeds 2 n. For velocity fields of simple structure, this problem can be accounted for by so-called unwrapping algorithms (see e.g. Chapters 2.9 and 4.2). 

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