On the relation between the ISRA and the EM algorithm for positron emission tomography.
Alvaro Rodolfo De PierroPublished in: IEEE Trans. Medical Imaging (1993)
Keyphrases
- em algorithm
- positron emission tomography
- expectation maximization
- mixture model
- maximum likelihood
- image reconstruction
- brain imaging
- maximum likelihood estimation
- generative model
- gaussian mixture model
- imaging modalities
- magnetic resonance imaging
- magnetic resonance
- gaussian mixture
- probabilistic model
- maximum a posteriori
- partial volume
- probability density function
- image segmentation
- image sequences