2 papers
cs.CV2026
A Globally Convergent Algorithm for Total Scaled-Gradient Variation via Cone-Constrained Bilinear Decomposition
Haibin Su, Chunlin Wu, Huibin Chang +1
The total scaled-gradient variation (TSGV) regularizer, derived from sparse modeling of piecewise-linear structures, has been shown to preserve edges and corners in image restorati…
math.OC2024
Nonconvex weighted variational metal artifacts removal via convergent primal-dual algorithms
Lianfang Wang, Zhangling Chen, Zhifang Liu +4
Direct reconstruction through filtered back projection engenders metal artifacts in polychromatic computed tomography images, attributed to highly attenuating implants, which furth…