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Computed tomography (CT) is widely utilized in clinical settings because it delivers detailed 3D images of the human body. However, performing CT scans is not always feasible due to radiation exposure and limitations in certain surgical…

图像与视频处理 · 电气工程与系统科学 2024-07-19 Xuhui Liu , Zhi Qiao , Runkun Liu , Hong Li , Juan Zhang , Xiantong Zhen , Zhen Qian , Baochang Zhang

Reconstructing high-quality 3D objects from sparse, partial observations from a single view is of crucial importance for various applications in computer vision, robotics, and graphics. While recent neural implicit modeling methods show…

计算机视觉与模式识别 · 计算机科学 2021-11-29 Shivam Duggal , Zihao Wang , Wei-Chiu Ma , Sivabalan Manivasagam , Justin Liang , Shenlong Wang , Raquel Urtasun

Implicit Neural Representations have gained prominence as a powerful framework for capturing complex data modalities, encompassing a wide range from 3D shapes to images and audio. Within the realm of 3D shape representation, Neural Signed…

计算机视觉与模式识别 · 计算机科学 2024-08-28 Amine Ouasfi , Adnane Boukhayma

High density implants such as metals often lead to serious artifacts in the reconstructed CT images which hampers the accuracy of image based diagnosis and treatment planning. In this paper, we propose a novel wavelet frame based CT image…

医学物理 · 物理学 2017-11-21 Haimiao Zhang , Bin Dong , Baodong Liu

While the availability of open 3D medical shape datasets is increasing, offering substantial benefits to the research community, we have found that many of these datasets are, unfortunately, disorganized and contain artifacts. These issues…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Khoa Tuan Nguyen , Francesca Tozzi , Wouter Willaert , Joris Vankerschaver , Nikdokht Rashidian , Wesley De Neve

In MRI, motion artefacts are among the most common types of artefacts. They can degrade images and render them unusable for accurate diagnosis. Traditional methods, such as prospective or retrospective motion correction, have been proposed…

图像与视频处理 · 电气工程与系统科学 2020-12-01 Soumick Chatterjee , Alessandro Sciarra , Max Dünnwald , Steffen Oeltze-Jafra , Andreas Nürnberger , Oliver Speck

Artifacts in kilo-Voltage CT (kVCT) imaging degrade image quality, impacting clinical decisions. We propose a deep learning framework for metal artifact reduction (MAR) and domain transformation from kVCT to Mega-Voltage CT (MVCT). The…

计算机视觉与模式识别 · 计算机科学 2025-06-25 Mubashara Rehman , Niki Martinel , Michele Avanzo , Riccardo Spizzo , Christian Micheloni

Recent works in medical image registration have proposed the use of Implicit Neural Representations, demonstrating performance that rivals state-of-the-art learning-based methods. However, these implicit representations need to be optimized…

图像与视频处理 · 电气工程与系统科学 2023-10-04 Louis D. van Harten , Jaap Stoker , Ivana Išgum

Magnetic Resonance Imaging (MRI) is a powerful imaging technique widely used for visualizing structures within the human body and in other fields such as plant sciences. However, there is a demand to develop fast 3D-MRI reconstruction…

图像与视频处理 · 电气工程与系统科学 2025-12-09 Arya Bangun , Zhuo Cao , Alessio Quercia , Hanno Scharr , Elisabeth Pfaehler

Sparse-view computed tomography (CT) reduces radiation exposure by subsampling projection views, but conventional reconstruction methods produce severe streak artifacts with undersampled data. While deep-learning-based methods enable…

图像与视频处理 · 电气工程与系统科学 2025-08-15 Jixiang Chen , Yiqun Lin , Yi Qin , Hualiang Wang , Xiaomeng Li

Diffusion models have recently emerged as powerful priors for solving inverse problems. While computed tomography (CT) is theoretically a linear inverse problem, it poses many practical challenges. These include correlated noise, artifact…

图像与视频处理 · 电气工程与系统科学 2026-02-24 Jiayang Shi , Daniel M. Pelt , K. Joost Batenburg

Low-dose dental cone beam computed tomography (CBCT) has been increasingly used for maxillofacial modeling. However, the presence of metallic inserts, such as implants, crowns, and dental filling, causes severe streaking and shading…

图像与视频处理 · 电气工程与系统科学 2022-02-09 Chang Min Hyun , Taigyntuya Bayaraa , Hye Sun Yun , Tae Jun Jang , Hyoung Suk Park , Jin Keun Seo

Magnetic Resonance (MR) images suffer from various types of artifacts due to motion, spatial resolution, and under-sampling. Conventional deep learning methods deal with removing a specific type of artifact, leading to separately trained…

图像与视频处理 · 电气工程与系统科学 2023-04-14 Arun Palla , Sriprabha Ramanarayanan , Keerthi Ram , Mohanasankar Sivaprakasam

Computed tomography (CT) serves as an effective tool for lung cancer screening, diagnosis, treatment, and prognosis, providing a rich source of features to quantify temporal and spatial tumor changes. Nonetheless, the diversity of CT…

图像与视频处理 · 电气工程与系统科学 2023-10-10 Md Selim , Jie Zhang , Faraneh Fathi , Michael A. Brooks , Ge Wang , Guoqiang Yu , Jin Chen

Active soft bodies can affect their shape through an internal actuation mechanism that induces a deformation. Similar to recent work, this paper utilizes a differentiable, quasi-static, and physics-based simulation layer to optimize for…

计算机视觉与模式识别 · 计算机科学 2024-01-29 Lingchen Yang , Byungsoo Kim , Gaspard Zoss , Baran Gözcü , Markus Gross , Barbara Solenthaler

Motion artifacts compromise the quality of magnetic resonance imaging (MRI) and pose challenges to achieving diagnostic outcomes and image-guided therapies. In recent years, supervised deep learning approaches have emerged as successful…

图像与视频处理 · 电气工程与系统科学 2024-08-15 Yusheng Zhou , Hao Li , Jianan Liu , Zhengmin Kong , Tao Huang , Euijoon Ahn , Zhihan Lv , Jinman Kim , David Dagan Feng

Regularization methods are commonly used in X-ray CT image reconstruction. Different regularization methods reflect the characterization of different prior knowledge of images. In a recent work, a new regularization method called a…

医学物理 · 物理学 2017-04-18 Wenxiang Cong , Ge Wang , Qingsong Yang , Jiang Hsieh , Jia Li , Rongjie Lai

Computed tomography (CT) is one of the modalities for effective lung cancer screening, diagnosis, treatment, and prognosis. The features extracted from CT images are now used to quantify spatial and temporal variations in tumors. However,…

图像与视频处理 · 电气工程与系统科学 2023-03-28 Md Selim , Jie Zhang , Michael A. Brooks , Ge Wang , Jin Chen

Personalised 3D vascular models are valuable for diagnosis, prognosis and treatment planning in patients with cardiovascular disease. Traditionally, such models have been constructed with explicit representations such as meshes and voxel…

图像与视频处理 · 电气工程与系统科学 2022-09-19 Dieuwertje Alblas , Christoph Brune , Kak Khee Yeung , Jelmer M. Wolterink

Implicit Neural Representation (INR) has emerged as an effective method for unsupervised image denoising. However, INR models are typically overparameterized; consequently, these models are prone to overfitting during learning, resulting in…

计算机视觉与模式识别 · 计算机科学 2024-01-04 Zipei Yan , Zhengji Liu , Jizhou Li