An Expectation Maximization Method for Joint Estimation of Emission Activity Distribution and Photon Attenuation Map in PET.
Alexander MihlinCraig S. LevinPublished in: IEEE Trans. Medical Imaging (2017)
Keyphrases
- joint estimation
- prior knowledge
- cost function
- high accuracy
- high precision
- expectation maximization
- significant improvement
- neural network
- clustering method
- dynamic programming
- preprocessing
- edge detection
- detection method
- segmentation method
- pairwise
- hidden markov models
- data sets
- objective function
- em algorithm
- generative model
- parameter estimation
- genetic algorithm
- normal distribution