Sinogram upsampling using Primal-Dual UNet for undersampled CT and radial MRI reconstruction.
Philipp ErnstSoumick ChatterjeeGeorg RoseOliver SpeckAndreas NürnbergerPublished in: CoRR (2021)
Keyphrases
- primal dual
- computer tomography
- medical images
- magnetic resonance imaging
- image reconstruction
- fan beam
- reconstructed image
- linear programming
- radon transform
- mri images
- ct images
- computerized tomography
- multislice
- limited angle
- convex optimization
- affine scaling
- linear program
- x ray
- computed tomography
- interior point methods
- medical imaging
- high resolution
- ct scans
- convergence rate
- linear programming problems
- semidefinite programming
- approximation algorithms
- three dimensional
- low resolution
- algorithm for linear programming
- simplex algorithm
- variational inequalities
- interior point algorithm
- interior point
- magnetic resonance images
- cone beam
- positron emission tomography
- mr images
- saddle point
- tomographic reconstruction
- simplex method
- super resolution
- magnetic resonance
- motion artifacts
- objective function
- image processing