A component-wise iterated relative entropy regularization method with updated prior and regularization parameter
2007 (English)In: Inverse Problems, ISSN 0266-5611, E-ISSN 1361-6420, Vol. 23, no 5, 2121-2139 p.Article in journal (Refereed) Published
We present a componentwise iterated relative entropy regularization method (COMET) where the prior and regularization parameter could be updated in the iterates. Such a reconstruction method could be useful for multicomponent inverse problems, such as the one occurring in electron tomography. The paper also contains a brief introduction to regularization theory with emphasis on variational based regularization methods, and we rigorously prove that the tolerance-based entropy reconstruction method that occurs in the COMET iterates is a regularization method. We conclude by showing examples of COMET applied to electron tomography data.
Place, publisher, year, edition, pages
Institute of Physics (IOP), 2007. Vol. 23, no 5, 2121-2139 p.
Regularisation, electron tomography, maximum entropy, limited angle tomography
Research subject SRA - E-Science (SeRC); SRA - Molecular Bioscience
IdentifiersURN: urn:nbn:se:kth:diva-71129DOI: 10.1088/0266-5611/23/5/018ISI: 000249735000019OAI: oai:DiVA.org:kth-71129DiVA: diva2:486600
FunderSwedish e‐Science Research Center
QC 201202072012-02-072012-01-302012-02-07Bibliographically approved