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UID:8408@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20140404T140000
DTEND;TZID=Europe/Paris:20140404T150000
DTSTAMP:20241120T210404Z
URL:https://www.i2m.univ-amu.fr/evenements/s-anthoine-i2m-color-tomography
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SUMMARY: (...): S. Anthoine (I2M): Color tomography
DESCRIPTION:: Color tomography \n\nBy Sandrine Anthoine\\\, I2M\n\nAbstract
 :\nIn classical X-ray tomography\\\, a set of measurement is obtained by i
 lluminating a 3D object with an ideally monochromatic X-ray source. After 
 reconstruction one obtains a map of the absorption of the object for the e
 nergy corresponding to the monochromatic source. In color X-ray tomography
 \\\, one acquires instead a set of measurement by modifying the spectrum o
 f a polychromatic source with different filters. As a result\\\, one is ab
 le to reconstruct several absorption maps (one for each filter) that conta
 in different spectral information. The question at stake is whether one ca
 n combine these information to obtain directly absorption maps of spectral
  components of the object. I will show how the model leads to a non-linear
  inverse problem\\\, and propose a solution relying on sparsity.
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DTSTART:20140330T030000
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