Rhodri Smith 
		
Dense Motion Propogation from Sparse Samples
 
Rhodri L Smith, Paul Dasari, Cliff Lindsay, Michael King and Kevin Wells

Vector fields from sparse slices
 acquired during free breathing,
 coupled with a fully sampled
 eigenbasis used to propagate
 high resolution static volume

This allows the realization
 of high resolution, high contrast
 respiratory motion to be visualized.
   Test 1: 
 Validation is performed with dynamic 4D MRI
 on three volunteers (below)
 

Example Motion of Propagated Static Volume

Test 2:
  Sparsely sampled dynamic MRI data is combined with an eigenbasis from 
 average respiratory cycle to articulate high contrast static volume 
 above are exemplar images of animated motion derived from estimates 
 made using the spase motion model

		
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