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Computed Tomography (CT) is a widely utilized imaging modality in clinical settings. Using densely acquired rotational X-ray arrays, CT can capture 3D spatial features. However, it is confronted with challenged such as significant time…

Image and Video Processing · Electrical Eng. & Systems 2025-07-16 Duoyou Chen , Yunqing Chen , Can Zhang , Zhou Wang , Cheng Chen , Ruoxiu Xiao

Spectral computed tomography (CT) is an emerging technology capable of providing high chemical specificity, which is crucial for many applications such as detecting threats in luggage. This type of application requires both fast and…

Image and Video Processing · Electrical Eng. & Systems 2021-03-30 Wail Mustafa , Christian Kehl , Ulrik Lund Olsen , Søren Kimmer Schou Gregersen , David Malmgren-Hansen , Jan Kehres , Anders Bjorholm Dahl

Deep learning (DL) has shown unprecedented performance for many image analysis and image enhancement tasks. Yet, solving large-scale inverse problems like tomographic reconstruction remains challenging for DL. These problems involve…

Medical Physics · Physics 2019-12-18 Lin Fu , Bruno De Man

Medical image analysis suffers from a shortage of data, whether annotated or not. This becomes even more pronounced when it comes to 3D medical images. Self-Supervised Learning (SSL) can partially ease this situation by using unlabeled…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Fei Gao , Siwen Wang , Fandong Zhang , Hong-Yu Zhou , Yizhou Wang , Churan Wang , Gang Yu , Yizhou Yu

Reconstructing MRI from highly undersampled measurements is crucial for accelerating medical imaging, but is challenging due to the ill-posedness of the inverse problem. While supervised deep learning (DL) approaches have shown remarkable…

Image and Video Processing · Electrical Eng. & Systems 2026-03-03 Andrew Wang , Steven McDonagh , Mike Davies

X-ray computed tomography (CT) is a widely used imaging technique that provides detailed examinations into the internal structure of an object with synchrotron CT (SR-CT) enabling improved data quality by using higher energy, monochromatic…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Austin Yunker , Peter Kenesei , Hemant Sharma , Jun-Sang Park , Antonino Miceli , Rajkumar Kettimuthu

In this paper, we propose a sinogram inpainting network (SIN) to solve limited-angle CT reconstruction problem, which is a very challenging ill-posed issue and of great interest for several clinical applications. A common approach to the…

Medical Physics · Physics 2018-11-12 Ji Zhao , Zhiqiang Chen , Li Zhang , Xin Jin

We propose a novel Coupled Projection multi-task Metric Learning (CP-mtML) method for large scale face retrieval. In contrast to previous works which were limited to low dimensional features and small datasets, the proposed method scales to…

Computer Vision and Pattern Recognition · Computer Science 2016-04-12 Binod Bhattarai , Gaurav Sharma , Frederic Jurie

Recently, Self-supervised learning methods able to perform image denoising without ground truth labels have been proposed. These methods create low-quality images by adding random or Gaussian noise to images and then train a model for…

Image and Video Processing · Electrical Eng. & Systems 2021-04-07 Dongkyu Won , Euijin Jung , Sion An , Philip Chikontwe , Sang Hyun Park

Purpose: The purpose of the challenge is to find the deep-learning technique for sparse-view CT image reconstruction that can yield the minimum RMSE under ideal conditions, thereby addressing the question of whether or not deep learning can…

Medical Physics · Physics 2022-10-12 Emil Y. Sidky , Xiaochuan Pan

This paper strives to generate a synthetic computed tomography (CT) image from a magnetic resonance (MR) image. The synthetic CT image is valuable for radiotherapy planning when only an MR image is available. Recent approaches have made…

Image and Video Processing · Electrical Eng. & Systems 2021-07-20 Zenglin Shi , Pascal Mettes , Guoyan Zheng , Cees Snoek

Visual SLAM (Simultaneous Localization and Mapping) methods typically rely on handcrafted visual features or raw RGB values for establishing correspondences between images. These features, while suitable for sparse mapping, often lead to…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Chamara Saroj Weerasekera , Ravi Garg , Yasir Latif , Ian Reid

Deep learning (DL) has emerged as a leading approach in accelerating MR imaging. It employs deep neural networks to extract knowledge from available datasets and then applies the trained networks to reconstruct accurate images from limited…

Image and Video Processing · Electrical Eng. & Systems 2024-02-06 Shanshan Wang , Ruoyou Wu , Sen Jia , Alou Diakite , Cheng Li , Qiegen Liu , Leslie Ying

Medical image segmentation has significantly benefitted thanks to deep learning architectures. Furthermore, semi-supervised learning (SSL) has recently been a growing trend for improving a model's overall performance by leveraging abundant…

Image and Video Processing · Electrical Eng. & Systems 2021-10-05 S. M. Kamrul Hasan , Cristian A. Linte

With the advent of deep learning, many dense prediction tasks, i.e. tasks that produce pixel-level predictions, have seen significant performance improvements. The typical approach is to learn these tasks in isolation, that is, a separate…

Computer Vision and Pattern Recognition · Computer Science 2021-01-26 Simon Vandenhende , Stamatios Georgoulis , Wouter Van Gansbeke , Marc Proesmans , Dengxin Dai , Luc Van Gool

Limited view tomographic reconstruction aims to reconstruct a tomographic image from a limited number of sinogram or projection views arising from sparse view or limited angle acquisitions that reduce radiation dose or shorten scanning…

Image and Video Processing · Electrical Eng. & Systems 2020-09-04 Bo Zhou , S. Kevin Zhou , James S. Duncan , Chi Liu

Semi-supervised medical image segmentation (SSMIS) uses consistency learning to regularize model training, which alleviates the burden of pixel-wise manual annotations. However, it often suffers from error supervision from low-quality…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Qingtao Pan , Wenhao Qiao , Jingjiao Lou , Bing Ji , Shuo Li

Self-supervised learning approaches leverage unlabeled samples to acquire generic knowledge about different concepts, hence allowing for annotation-efficient downstream task learning. In this paper, we propose a novel self-supervised method…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Aiham Taleb , Christoph Lippert , Tassilo Klein , Moin Nabi

This paper investigates the application of deep learning models for lung Computed Tomography (CT) image analysis. Traditional deep learning frameworks encounter compatibility issues due to variations in slice numbers and resolutions in CT…

Image and Video Processing · Electrical Eng. & Systems 2023-03-16 Chih-Chung Hsu , Chih-Yu Jian , Chia-Ming Lee , Chi-Han Tsai , Sheng-Chieh Dai

We propose to simultaneously learn to sample and reconstruct magnetic resonance images (MRI) to maximize the reconstruction quality given a limited sample budget, in a self-supervised setup. Unlike existing deep methods that focus only on…

Computer Vision and Pattern Recognition · Computer Science 2019-01-16 Kyong Hwan Jin , Michael Unser , Kwang Moo Yi
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