A modified expectation maximization algorithm for penalized likelihood estimation in emission tomography
Journal Article
·
· IEEE Transactions on Medical Imaging
- State Univ. of Campinas, Sao Paulo (Brazil). Applied Mathematics Dept.
The maximum likelihood (ML) expectation maximization (EM) approach in emission tomography has been very popular in medical imaging for several years. In spite of this, no satisfactory convergent modifications have been proposed for the regularized approach. In this paper, a modification of the EM algorithm is presented. The new method is a natural extension of the EM for maximizing likelihood with concave priors. Convergence proofs are given.
- OSTI ID:
- 37337
- Journal Information:
- IEEE Transactions on Medical Imaging, Vol. 14, Issue 1; Other Information: PBD: Mar 1995
- Country of Publication:
- United States
- Language:
- English
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