Sparse-view CBCT reconstruction via weighted Schatten p-norm minimization

C Xu, B Yang, F Guo, W Zheng, P Poignet - Optics Express, 2020 - opg.optica.org
A novel iterative algorithm is proposed for sparse-view cone beam computed tomography
(CBCT) reconstruction based on the weighted Schatten p-norm minimization (WSNM). By …

Weighted adaptive non-local dictionary for low-dose CT reconstruction

H Yu, S Wang, W Wu, C Gong, L Wang, Z Pi, F Liu - Signal Processing, 2021 - Elsevier
Low-dose computed tomography (LDCT) image reconstruction has been attracting much
attention in medical applications because it can reduce the radiation risk. Sometimes …

Nonconvex L1/2-regularized nonlocal self-similarity denoiser for compressive sensing based CT reconstruction

Y Li, Y Jiang, H Zhang, J Liu, X Ding, G Gui - Journal of the Franklin …, 2023 - Elsevier
Compressive sensing (CS) based computed tomography (CT) image reconstruction aims at
reducing the radiation risk through sparse-view projection data. However, it is challenging to …

Sparse angle CBCT reconstruction based on guided image filtering

S Xu, B Yang, C Xu, J Tian, Y Liu, L Yin, S Liu… - Frontiers in …, 2022 - frontiersin.org
Cone-beam Computerized Tomography (CBCT) has the advantages of high ray utilization
and detection efficiency, short scan time, high spatial and isotropic resolution. However, the …

Weighted tensor low-rankness and learnable analysis sparse representation model for texture preserving low-dose CT reconstruction

Y Zhang, D Zeng, Z Bian, H Lu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In CT images, tissue structures and lesion changes illustrate evident non-local self-similarity
and regionally constant properties. The low-rank model and the learnable sparse …

PrideDiff: Physics-Regularized Generalized Diffusion Model for CT Reconstruction

Z Lu, Q Gao, T Wang, Z Yang, Z Wang… - … on Radiation and …, 2024 - ieeexplore.ieee.org
Achieving a lower radiation dose and a faster imaging speed is a pivotal objective of
computed tomography (CT) reconstruction. However, these often come at the cost of …

A New Local Region-Based Active Contour Model for Image Segmentation Based on Adaptive Double Potential Well Function

X Wang, Z Liu, C Huang, Q Wang, J Wang - Image Analysis and …, 2024 - ias-iss.org
In this paper, we present a modified local region-based active contour model employing an
adaptive double potential well function for image segmentation. Initially, to circumvent the …

Guided image filtering based limited-angle CT reconstruction algorithm using wavelet frame

J Wang, C Wang, Y Guo, W Yu, L Zeng - IEEE Access, 2019 - ieeexplore.ieee.org
Computed tomography (CT) has its irreplaceable function in nondestructive testing and
medical diagnosis. In some practical CT imaging applications, the limited-angle scanning is …

NanoSIMS image enhancement by reducing random noise using low‐rank method

Y Lin, J Hao, Z Miao, J Zhang… - Surface and Interface …, 2020 - Wiley Online Library
NanoSIMS images are usually affected by random noises because of various types of
sources, which degrade the quality of ion images and increase the uncertainty of the …