Solving ill-posed inverse problems using iterative deep neural networks
We propose a partially learned approach for the solution of ill-posed inverse problems with
not necessarily linear forward operators. The method builds on ideas from classical …
not necessarily linear forward operators. The method builds on ideas from classical …
Artifacts and visible singularities in limited data X-ray tomography
ET Quinto - Sensing and Imaging, 2017 - Springer
We describe a principle to determine which features of an object will be easy to reconstruct
from limited X-ray CT data and which will be difficult. The principle depends on the geometry …
from limited X-ray CT data and which will be difficult. The principle depends on the geometry …
Template-based CT reconstruction with optimal transport and total generalized variation
Y Gao, Z **, X Li - Inverse Problems, 2023 - iopscience.iop.org
Abstract x-ray computed tomography (CT) has been widely used in clinical diagnosis as a
modality of medical imaging. To decrease the radiation dose patients suffering from, sparse …
modality of medical imaging. To decrease the radiation dose patients suffering from, sparse …
Shape-based image reconstruction using linearized deformations
We introduce a reconstruction framework that can account for shape related prior
information in imaging-related inverse problems. It is a variational scheme that uses a shape …
information in imaging-related inverse problems. It is a variational scheme that uses a shape …
An Innovative Low-dose CT Inpainting Algorithm based on Limited-angle Imaging Inpainting Model
Z Zhang, M Yang, H Li, S Chen… - Journal of X-Ray …, 2023 - content.iospress.com
Background: With the popularity of computed tomography (CT) technique, an increasing
number of patients are receiving CT scans. Simultaneously, the public's attention to CT …
number of patients are receiving CT scans. Simultaneously, the public's attention to CT …
[PDF][PDF] Inverse problems of integral invariants and shape signatures
Recently, integral invariants and according signatures have been identified to be useful for
shape classification, which is an important research topic in computer vision, artificial …
shape classification, which is an important research topic in computer vision, artificial …
Extraction and classification of the cultural relic model based on local geometric features
J Zhou, M Zhou, G Geng, X Wang - Journal of Advanced …, 2016 - jstage.jst.go.jp
This paper proposes a novel approach to extracting local geometric features of the cultural
relic. We first calculate Gaussian and mean curvature of the model. Then the surfaces of …
relic. We first calculate Gaussian and mean curvature of the model. Then the surfaces of …
Nonasymptotic densities for shape reconstruction
S Ibrahim, K Sonnanburg, TJ Asaki… - Abstract and Applied …, 2014 - Wiley Online Library
In this work, we study the problem of reconstructing shapes from simple nonasymptotic
densities measured only along shape boundaries. The particular density we study is also …
densities measured only along shape boundaries. The particular density we study is also …
Shape analysis for inverse problems
EO Bøe - 2021 - ntnuopen.ntnu.no
Denne oppgaven undersøker problemet med å invertere Radon-transformasjonen av en
form, hvor vi kun har tilgjengelig data fra et fåtall vinkler i et begrenset intervall. For å løse …
form, hvor vi kun har tilgjengelig data fra et fåtall vinkler i et begrenset intervall. For å løse …
Data-inspired advances in geometric measure theory: generalized surface and shape metrics
S Ibrahim - arxiv preprint arxiv:1408.5954, 2014 - arxiv.org
Modern geometric measure theory, developed largely to solve the Plateau problem, has
generated a great deal of technical machinery which is unfortunately regarded as …
generated a great deal of technical machinery which is unfortunately regarded as …