Fast convergence strategy for ambiguous inverse problems based on hierarchical regularization.
Robert EppFranca SchmidPatrick JennyPublished in: J. Comput. Phys. (2023)
Keyphrases
- inverse problems
- image reconstruction
- global optimization
- regularization methods
- convex optimization
- regularization method
- optimization methods
- optimization problems
- emission tomography
- partial differential equations
- early vision
- smoothness constraint
- coarse to fine
- neural network
- computationally expensive
- high resolution
- image processing