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Publicatie
On blind imaging, NMF and PET
Boekbijdrage - Boekhoofdstuk Conferentiebijdrage
After reviewing the multiplicative iterative algorithms EMML and
ISRA which allow to naturally enforce, at each iteration, a positivity constraint on
the solution of linear inverse problems, we discuss their extension to blind imaging
with positivity constraints and to the related problem of Nonnegative Matrix
Factorization (NMF). We then establish a connection between this framework and
two problems of interest in medical imaging, namely dynamic Positron Emission
Tomography (PET) and the joint estimation of activity and attenuation in
time-of-flight PET.
ISRA which allow to naturally enforce, at each iteration, a positivity constraint on
the solution of linear inverse problems, we discuss their extension to blind imaging
with positivity constraints and to the related problem of Nonnegative Matrix
Factorization (NMF). We then establish a connection between this framework and
two problems of interest in medical imaging, namely dynamic Positron Emission
Tomography (PET) and the joint estimation of activity and attenuation in
time-of-flight PET.
Boek: The Radon transform: the first 100 years and beyond
Aantal pagina's: 14
Jaar van publicatie:2019
Trefwoorden:blind imaging, nonnegative matrix factorization, dynamic positron emission tomography