Nonparametric Regression Sinogram Smoothing using a Roughness-Penalized Poisson Likelihood Objective Function.
Patrick J. La RivièreXiaochuan PanPublished in: IEEE Trans. Medical Imaging (2000)
Keyphrases
- nonparametric regression
- objective function
- maximum likelihood
- pointwise
- weighted sum
- closed form
- optimal solution
- constrained optimization
- loss function
- linear programming
- least squares
- optimization problems
- fractal dimension
- lower bound
- negative binomial
- feasible solution
- variable selection
- reconstructed image
- cost function
- radon transform
- em algorithm
- np hard
- evolutionary algorithm
- poisson process
- poisson distribution