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Metal implants in MRI cause severe artifacts that degrade image quality and hinder clinical diagnosis. Traditional approaches address metal artifact reduction (MAR) and accelerated MRI acquisition as separate problems. We propose MASC, a…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Zhengyi Lu , Ming Lu , Chongyu Qu , Junchao Zhu , Junlin Guo , Marilyn Lionts , Yanfan Zhu , Yuechen Yang , Tianyuan Yao , Jayasai Rajagopal , Bennett Allan Landman , Xiao Wang , Xinqiang Yan , Yuankai Huo

Whole slide images~(WSIs) are digitized images of tissues placed in glass slides using advanced scanners. The digital processing of WSIs is challenging as they are gigapixel images and stored in multi-resolution format. A common challenge…

Image and Video Processing · Electrical Eng. & Systems 2023-10-30 Saba Heidari Gheshlaghi , Milan Aryal , Nasim Yahyasoltani , Masoud Ganji

The reduction of metal artifacts in computed tomography (CT) images, specifically for strong artifacts generated from multiple metal objects, is a challenging issue in medical imaging research. Although there have been some studies on…

Image and Video Processing · Electrical Eng. & Systems 2020-08-24 Megumi Nakao , Keiho Imanishi , Nobuhiro Ueda , Yuichiro Imai , Tadaaki Kirita , Tetsuya Matsuda

This study introduces a novel reconstruction method for dental cone-beam computed tomography (CBCT), focusing on effectively reducing metal-induced artifacts commonly encountered in the presence of prevalent metallic implants. Despite…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Hyoung Suk Park , Kiwan Jeon , Jin Keun Seo

Deep learning based approaches have been used to improve image quality in cone-beam computed tomography (CBCT), a medical imaging technique often used in applications such as image-guided radiation therapy, implant dentistry or…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Mohammadreza Amirian , Daniel Barco , Ivo Herzig , Frank-Peter Schilling

Metal artifacts caused by the presence of metallic implants tremendously degrade the reconstructed computed tomography (CT) image quality, affecting clinical diagnosis or reducing the accuracy of organ delineation and dose calculation in…

The variability introduced by differences in MRI scanner models, acquisition protocols, and imaging sites hinders consistent analysis and generalizability across multicenter studies. We present a novel image-based harmonization framework…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Luca Caldera , Lara Cavinato , Francesca Ieva

Microscopy such as Scanning Tunneling Microscopy (STM), Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM) are essential tools in material imaging at micro- and nanoscale resolutions to extract physical knowledge and…

Background and Objective: The strong demand for medical imaging applications leads to the popularity of the CT reconstruction problem. Researchers proposed multiple constraints to tackle none ideal factors in CT reconstruction such as…

Image and Video Processing · Electrical Eng. & Systems 2022-12-20 Ziyu Shu , Alireza Entezari

Inconsistent responses of X-ray detector elements lead to stripe artifacts in the sinogram data, which manifest as ring artifacts in the reconstructed CT images, severely degrading image quality. This paper proposes a method for correcting…

Image and Video Processing · Electrical Eng. & Systems 2025-07-01 Ligen Shi , Xu Jiang , YunZe Liu , Chang Liu , Ping Yang , Shifeng Guo , Xing Zhao

In the presence of metal implants, metal artifacts are introduced to x-ray CT images. Although a large number of metal artifact reduction (MAR) methods have been proposed in the past decades, MAR is still one of the major problems in…

Medical Physics · Physics 2018-04-23 Yanbo Zhang , Hengyong Yu

Metal artifacts in computed tomography (CT) arise from a mismatch between physics of image formation and idealized assumptions during tomographic reconstruction. These artifacts are particularly strong around metal implants, inhibiting…

Image and Video Processing · Electrical Eng. & Systems 2019-09-20 Jan-Nico Zaech , Cong Gao , Bastian Bier , Russell Taylor , Andreas Maier , Nassir Navab , Mathias Unberath

Histological artifacts pose challenges for both pathologists and Computer-Aided Diagnosis (CAD) systems, leading to errors in analysis. Current approaches for histological artifact restoration, based on Generative Adversarial Networks…

Image and Video Processing · Electrical Eng. & Systems 2024-07-30 Zhenqi He , Wenrui Liu , Minghao Yin , Kai Han

Defective and inconsistent responses in CT detectors can cause ring and streak artifacts in the reconstructed images, making them unusable for clinical purposes. In recent years, several ring artifact reduction solutions have been proposed…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Hongxu Yang , Levente Lippenszky , Edina Timko , Gopal Avinash

The deployment of artificial intelligence in medical imaging is hindered by high computational complexity and resource-intensive processing of volumetric data. Although chest computed tomography (CT) volumes offer richer diagnostic…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Shadid Yousuf , S. M. Mahbubur Rahman , Mohammed Imamul Hassan Bhuiyan

X-ray computed tomography (CT) is widely utilized in the medical, industrial, and other fields to nondestructively generate three-dimensional structural images of objects. However, CT images are often affected by various artifacts, with…

Medical Physics · Physics 2025-05-27 Yang Zou , Meili Qi , Jianhua Zhang , Difei Zhang , Shuwei Wang , Jiale Zhang , Shengkun Yao , Huaidong Jiang

Metal artefact reduction (MAR) techniques aim at removing metal-induced noise from clinical images. In Computed Tomography (CT), supervised deep learning approaches have been shown effective but limited in generalisability, as they mostly…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Marta B. M. Ranzini , Irme Groothuis , Kerstin Kläser , M. Jorge Cardoso , Johann Henckel , Sébastien Ourselin , Alister Hart , Marc Modat

Sparse reconstruction is an important aspect of MRI, helping to reduce acquisition time and improve spatial-temporal resolution. Popular methods are based mostly on compressed sensing (CS), which relies on the random sampling of k-space to…

Image and Video Processing · Electrical Eng. & Systems 2023-10-17 Marlon E. Bran Lorenzana , Shekhar S. Chandra , Feng Liu

Since the invention of modern CT systems, metal artifacts have been a persistent problem. Due to increased scattering, amplified noise, and insufficient data collection, it is more difficult to suppress metal artifacts in cone-beam CT,…

Medical Physics · Physics 2023-10-27 Tianling Lyu , Zhan Wu , Gege Ma , Chen Jiang , Xinyun Zhong , Yan Xi , Yang Chen , Wentao Zhu

X-ray computed tomography (CT) reconstructs the internal morphology of a three dimensional object from a collection of projection images, most commonly using a single rotation axis. However, for objects containing dense materials like…

Image and Video Processing · Electrical Eng. & Systems 2024-06-27 Diyu Yang , Craig A. J. Kemp , Soumendu Majee , Gregery T. Buzzard , Charles A. Bouman