CT image restoration method via total variation and L 0 smoothing filter
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Hai Yin
und
Wei Yu
Abstract
In X-ray CT imaging, there are some cases where the obtained CT images have serious ring artifacts and noise, and these degraded CT images seriously affect the quality of clinical diagnosis. Thus, developing an effective method that can simultaneously suppress ring artifacts and noise is of great importance. Total variation (TV) is a famous prior regularization for image denoising in the image processing field, however, for degraded CT images, it can suppress the noise but fail to reduce the ring artifacts. To address this issue, the
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 62371184
Award Identifier / Grant number: 61801086
Funding statement: This work was partially funded by the National Natural Science Foundation of China (No. 62371184 and No. 61801086), the Natural Science Foundation of Chongqing (No. cstc2019jcyj-msxmX0345), the Science and Technology Research Program of Chongqing Municipal Education Commission (No. KJQN202000534), and the National College Students Innovation and Entrepreneurship Training Program (No. 202110927008). The authors also thank Guangzhou Huaduan Technology co., LTD for providing real data for CT reconstruction.
References
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© 2024 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Boundary determination for hybrid imaging from a single measurement
- The inverse problem of heat conduction in the case of non-uniqueness: A functional identification approach
- Well-posedness and Tikhonov regularization of an inverse source problem for a parabolic equation with an integral constraint
- CT image restoration method via total variation and L 0 smoothing filter
- A weakly inhomogeneous vibrating membrane and the solotone effect in two dimensions
- A physics-inspired neural network for short-wave radiation parameterization
- Inverse problem for Sturm–Liouville operator with complex-valued weight and eigenparameter dependent boundary conditions
- The high-order estimate of the entire function associated with inverse Sturm–Liouville problems
- Inverse spectral problem for differential pencils with a frozen argument
- Curious ill-posedness phenomena in the composition of non-compact linear operators in Hilbert spaces
- M. M. Lavrentiev-type systems and reconstructing parameters of viscoelastic media
- Application of locally regularized extremal shift to the problem of realization of a prescribed motion
- The overdetermined Cauchy problem for the hyperbolic Gellerstedt equation
- The group behavior analysis of the high-frequency traders based on Mean Field Games approach
Artikel in diesem Heft
- Frontmatter
- Boundary determination for hybrid imaging from a single measurement
- The inverse problem of heat conduction in the case of non-uniqueness: A functional identification approach
- Well-posedness and Tikhonov regularization of an inverse source problem for a parabolic equation with an integral constraint
- CT image restoration method via total variation and L 0 smoothing filter
- A weakly inhomogeneous vibrating membrane and the solotone effect in two dimensions
- A physics-inspired neural network for short-wave radiation parameterization
- Inverse problem for Sturm–Liouville operator with complex-valued weight and eigenparameter dependent boundary conditions
- The high-order estimate of the entire function associated with inverse Sturm–Liouville problems
- Inverse spectral problem for differential pencils with a frozen argument
- Curious ill-posedness phenomena in the composition of non-compact linear operators in Hilbert spaces
- M. M. Lavrentiev-type systems and reconstructing parameters of viscoelastic media
- Application of locally regularized extremal shift to the problem of realization of a prescribed motion
- The overdetermined Cauchy problem for the hyperbolic Gellerstedt equation
- The group behavior analysis of the high-frequency traders based on Mean Field Games approach
