Splitting with Near-Circulant Linear Systems: Applications to Total Variation CT and PET.
Ernest K. RyuSeyoon KoJoong-Ho WonPublished in: SIAM J. Sci. Comput. (2020)
Keyphrases
- linear systems
- total variation
- image reconstruction
- image restoration
- denoising
- image denoising
- regularization methods
- dynamical systems
- sufficient conditions
- medical images
- magnetic resonance imaging
- ct images
- convex optimization
- sparse linear systems
- super resolution
- blind deconvolution
- minimization problems
- image processing
- medical imaging
- regularization term
- fourier transform
- coefficient matrix
- iterative methods
- respiratory motion
- pid controller
- noisy images
- discrete fourier transform
- natural images
- computer vision