Simultaneous activity attenuation reconstruction in positron emission tomography via maximum likelihood and iterative methods.
Alvaro R. De PierroFabiana CrepaldiPublished in: ICIP (3) (2005)
Keyphrases
- positron emission tomography
- iterative methods
- maximum likelihood
- image reconstruction
- pet images
- imaging modalities
- image reconstruction from projections
- magnetic resonance imaging
- brain imaging
- computationally expensive
- fan beam
- magnetic resonance
- em algorithm
- single photon emission computed tomography
- constrained optimization
- partial volume
- rigid registration
- magnetic resonance images
- expectation maximization
- three dimensional
- iterative algorithms
- neural model
- medical images
- respiratory motion
- neural network
- energy function
- machine learning