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Reconstruction of few-view x-ray Computed Tomography (CT) data is a highly ill-posed problem. It is often used in applications that require low radiation dose in clinical CT, rapid industrial scanning, or fixed-gantry CT. Existing analytic…

图像与视频处理 · 电气工程与系统科学 2019-10-15 Hyojin Kim , Rushil Anirudh , K. Aditya Mohan , Kyle Champley

Sparse views X-ray computed tomography has emerged as a contemporary technique to mitigate radiation dose. Because of the reduced number of projection views, traditional reconstruction methods can lead to severe artifacts. Recently,…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Liutao Yang , Jiahao Huang , Guang Yang , Daoqiang Zhang

In this article, we propose a novel standalone hybrid Spiking-Convolutional Neural Network (SC-NN) model and test on using image inpainting tasks. Our approach uses the unique capabilities of SNNs, such as event-based computation and…

神经与进化计算 · 计算机科学 2024-07-15 Sanaullah , Kaushik Roy , Ulrich Rückert , Thorsten Jungeblut

Deep learning holds great promise in the reconstruction of undersampled Magnetic Resonance Imaging (MRI) data, providing new opportunities to escalate the performance of rapid MRI. In existing deep learning-based reconstruction methods,…

计算机视觉与模式识别 · 计算机科学 2018-12-11 Fang Liu , Lihua Chen , Richard Kijowski , Li Feng

Image enhancement algorithms are very useful for real world computer vision tasks where image resolution is often physically limited by the sensor size. While state-of-the-art deep neural networks show impressive results for image…

计算机视觉与模式识别 · 计算机科学 2024-02-27 Alexander Schmidt , Prathmesh Madhu , Andreas Maier , Vincent Christlein , Ronak Kosti

Image restoration is a challenging ill-posed problem which also has been a long-standing issue. In the past few years, the convolution neural networks (CNNs) almost dominated the computer vision and had achieved considerable success in…

图像与视频处理 · 电气工程与系统科学 2023-01-18 Chi-Mao Fan , Tsung-Jung Liu , Kuan-Hsien Liu

Limited-Angle Computed Tomography (LACT) is a challenging inverse problem where missing angular projections lead to incomplete sinograms and severe artifacts in the reconstructed images. While recent learning-based methods have demonstrated…

图像与视频处理 · 电气工程与系统科学 2025-07-09 Jiaqi Guo , Santiago López-Tapia

Recently, deep learning(DL) methods have been proposed for the low-dose computed tomography(LdCT) enhancement, and obtain good trade-off between computational efficiency and image quality. Most of them need large number of pre-collected…

计算机视觉与模式识别 · 计算机科学 2018-08-09 Mingrui Geng , Yun Deng , Qian Zhao , Qi Xie , Dong Zeng , Dong Zeng , Wangmeng Zuo , Deyu Meng

Compressed sensing (CS) computed tomography has been proven to be important for several clinical applications, such as sparse-view computed tomography (CT), digital tomosynthesis and interior tomography. Traditional compressed sensing…

医学物理 · 物理学 2020-12-15 Yi Zhang , Hu Chen , Wenjun Xia , Yang Chen , Baodong Liu , Yan Liu , Huaiqiang Sun , Jiliu Zhou

The traditional approaches to computerized tomography (CT) depend on the samples of Radon transform at multiple angles. In optics, the real time imaging requires the reconstruction of an object by the samples of Radon transform at a single…

信息论 · 计算机科学 2021-03-08 Youfa Li , Shengli Fan , Yanfen Huang

Image reconstruction from insufficient data is common in computed tomography (CT), e.g., image reconstruction from truncated data, limited-angle data and sparse-view data. Deep learning has achieved impressive results in this field.…

图像与视频处理 · 电气工程与系统科学 2020-05-21 Yixing Huang , Alexander Preuhs , Michael Manhart , Guenter Lauritsch , Andreas Maier

Current deep neural network based approaches to computed tomography (CT) metal artifact reduction (MAR) are supervised methods which rely heavily on synthesized data for training. However, as synthesized data may not perfectly simulate the…

图像与视频处理 · 电气工程与系统科学 2019-12-02 Haofu Liao , Wei-An Lin , Jianbo Yuan , S. Kevin Zhou , Jiebo Luo

In radio astronomy, the challenge of reconstructing a sky map from time ordered data (TOD) is known as an inverse problem. Standard map-making techniques and gridding algorithms are commonly employed to address this problem, each offering…

天体物理仪器与方法 · 物理学 2023-06-28 Haolin Zhang , Shifan Zuo , Le Zhang

Modern tomography involves gathering projection data from multiple directions and feeding them into a software algorithm for tomographic reconstruction. We focus our study on image reconstruction from Radon data in the setting of…

数值分析 · 数学 2014-12-19 Maria Angela Narduzzo

Implicit neural representations (INRs) have emerged as a powerful tool for solving inverse problems in computer vision and computational imaging. INRs represent images as continuous domain functions realized by a neural network taking…

图像与视频处理 · 电气工程与系统科学 2025-06-12 Mahrokh Najaf , Gregory Ongie

The image reconstruction process in medical imaging can be treated as solving an inverse problem. The inverse problem is usually solved using time-consuming iterative algorithms with sparsity or other constraints. Recently, deep neural…

医学物理 · 物理学 2021-10-29 Jingke Zhang , Qiong He , Congzhi Wang , Hongen Liao , Jianwen Luo

The task of single image super-resolution (SISR) aims at reconstructing a high-resolution (HR) image from a low-resolution (LR) image. Although significant progress has been made by deep learning models, they are trained on synthetic paired…

图像与视频处理 · 电气工程与系统科学 2019-10-15 Zhen Han , Enyan Dai , Xu Jia , Xiaoying Ren , Shuaijun Chen , Chunjing Xu , Jianzhuang Liu , Qi Tian

Computed Tomography (CT) with its remarkable capability for three-dimensional imaging from multiple projections, enjoys a broad range of applications in clinical diagnosis, scientific observation, and industrial detection. Neural Adaptive…

图像与视频处理 · 电气工程与系统科学 2023-11-06 Bo Xiong , Changqing Su , Zihan Lin , You Zhou , Zhaofei Yu

Speech inpainting consists in reconstructing corrupted or missing speech segments using surrounding context, a process that closely resembles the pretext tasks in Self-Supervised Learning (SSL) for speech encoders. This study investigates…

声音 · 计算机科学 2025-12-09 Ihab Asaad , Maxime Jacquelin , Olivier Perrotin , Laurent Girin , Thomas Hueber

Purpose: This work aims at developing a generalizable MRI reconstruction model in the meta-learning framework. The standard benchmarks in meta-learning are challenged by learning on diverse task distributions. The proposed network learns…

计算机视觉与模式识别 · 计算机科学 2021-10-05 Wanyu Bian , Yunmei Chen , Xiaojing Ye , Qingchao Zhang