List-Mode Likelihood EM Algorithm and Noise Estimation Demonstrated on 2D-PET.
Lucas C. ParraHarrison H. BarrettPublished in: IEEE Trans. Medical Imaging (1998)
Keyphrases
- em algorithm
- noise estimation
- maximum likelihood
- likelihood function
- expectation maximization
- log likelihood
- additive noise
- mixture model
- noise level
- log likelihood function
- noisy images
- maximum likelihood estimation
- parameter estimation
- denoising
- gaussian mixture model
- expectation maximisation
- hyperparameters
- density estimation
- generative model
- gaussian mixture
- probability density function
- maximum a posteriori
- mixture modeling
- gaussian distribution
- incomplete data
- maximum likelihood estimates
- penalized likelihood
- posterior probability
- mixture of gaussians
- finite mixture model
- image reconstruction
- computer vision
- model based clustering
- signal to noise ratio
- bayesian framework
- image compression