Reduction of Staircase Effect With Total Generalized Variation Regularization for Electrical Impedance Tomography
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2019.2926232
Abstract: Image reconstruction in electrical impedance tomography is an ill-posed inverse problem. To address this problem, regularization methods such as Tikhonov regularization and total variation regularization have been adopted. However, the image is over-smoothed when reconstructing… read more here.
Keywords: variation regularization; staircase effect; generalized variation; total generalized ... See more keywords
A Fast Algorithm of Regularization of the Total Variation for the Class of Radially Symmetrical Functions
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Communications Technology and Electronics"
DOI: 10.1134/s1064226919120064
Abstract: The total variation regularization for 2D radially symmetrical piecewise constant functions is considered in this paper. The system of equations that solves the direct problem of the total variation regularization with the use of subgradients… read more here.
Keywords: algorithm total; total variation; regularization; radially symmetrical ... See more keywords
Image Restoration by a Mixed High-Order Total Variation and Regularization Model
Sign Up to like & getrecommendations! Published in 2018 at "Mathematical Problems in Engineering"
DOI: 10.1155/2018/6538610
Abstract: Total variation regularization is well-known for recovering sharp edges; however, it usually produces staircase artifacts. In this paper, in order to overcome the shortcoming of total variation regularization, we propose a new variational model combining… read more here.
Keywords: order; model; total variation; regularization ... See more keywords