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SUMMARY:An anatomically driven PDE's for SPECT image reconstruction - Dani
 il Kazantsev (UCL)
DTSTART:20120713T140000Z
DTEND:20120713T150000Z
UID:TALK38899@talks.cam.ac.uk
CONTACT:Daniel Marahrens
DESCRIPTION:Single-photon emission computed tomography (SPECT) is a biomed
 ical imaging modality for visualisation and quantification of biochemical 
 and physiological processes in living tissues. The resolution of SPECT is 
 quite limited and can be improved by the use of high resolution anatomical
  information so as to limit smoothing to within anatomically defined bound
 aries.\n\nIn this project we work on SPECT reconstruction using anatomical
  information from Magnetic Resonance Imaging (MRI) as a priori knowledge a
 bout the activity distribution in the brain. The trade-off between enforci
 ng the anatomical information and preserving emission contrast in regions 
 that do not correspond to anatomically defined boundaries is one of the ma
 in concerns for such studies.\n\nSpatially variant dIffusion PDE's  are ab
 le to preserve important edges while filter image from noise.  We try vari
 ous approaches to embed available anatomical data into this variational fr
 amework.  
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
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