Maximum-likelihood reconstruction of transmission images in emission computed tomography via the EM algorithm.
John M. OllingerPublished in: IEEE Trans. Medical Imaging (1994)
Keyphrases
- maximum likelihood
- em algorithm
- emission computed tomography
- image reconstruction
- expectation maximization
- maximum a posteriori
- positron emission tomography
- three dimensional
- likelihood function
- parameter estimation
- gaussian mixture model
- hyperparameters
- mixture model
- reconstruction process
- maximum likelihood estimation
- image analysis
- generative model
- image registration
- image data
- penalized likelihood
- probability density function
- expectation maximisation
- probabilistic model
- computer vision
- single photon emission computed tomography
- computerized tomography
- scan data
- clustering algorithm
- brain imaging
- gaussian mixture
- magnetic resonance imaging
- gaussian distribution
- density estimation
- image segmentation
- data analysis
- markov random field