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相关论文: Wide Range MRI Artifact Removal with Transformers

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Electrocardiogram (ECG) artifact contamination often occurs in surface electromyography (sEMG) applications when the measured muscles are in proximity to the heart. Previous studies have developed and proposed various methods, such as…

信号处理 · 电气工程与系统科学 2022-10-25 Kuan-Chen Wang , Kai-Chun Liu , Sheng-Yu Peng , Yu Tsao

Unsupervised anomaly detection using only normal samples is of great significance for quality inspection in industrial manufacturing. Although existing reconstruction-based methods have achieved promising results, they still face two…

计算机视觉与模式识别 · 计算机科学 2024-11-27 Junpu Wang , Guili Xu , Chunlei Li , Guangshuai Gao , Yuehua Cheng , Bing Lu

Surface-based cortical analysis is valuable for a variety of neuroimaging tasks, such as spatial normalization, parcellation, and gray matter (GM) thickness estimation. However, most tools for estimating cortical surfaces work exclusively…

Positron emission tomography(PET) image reconstruction is an ill-posed inverse problem and suffers from high level of noise due to limited counts received. Recently deep neural networks especially convolutional neural networks(CNN) have…

图像与视频处理 · 电气工程与系统科学 2022-10-25 Rui Hu , Huafeng Liu

Magnetic resonance imaging (MRI) is a crucial medical imaging modality. However, long acquisition times remain a significant challenge, leading to increased costs, and reduced patient comfort. Recent studies have shown the potential of…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Amirmohammad Shamaei , Alexander Stebner , Salome , Bosshart , Johanna Ospel , Gouri Ginde , Mariana Bento , Roberto Souza

Motion artifacts are a pervasive problem in MRI, leading to misdiagnosis or mischaracterization in population-level imaging studies. Current retrospective rigid intra-slice motion correction techniques jointly optimize estimates of the…

图像与视频处理 · 电气工程与系统科学 2023-11-17 Nalini M. Singh , Neel Dey , Malte Hoffmann , Bruce Fischl , Elfar Adalsteinsson , Robert Frost , Adrian V. Dalca , Polina Golland

Purpose: Compressed sensing MRI (CS-MRI) from single and parallel coils is one of the powerful ways to reduce the scan time of MR imaging with performance guarantee. However, the computational costs are usually expensive. This paper aims to…

计算机视觉与模式识别 · 计算机科学 2017-03-06 Dongwook Lee , Jaejun Yoo , Jong Chul Ye

Magnetic resonance imaging (MRI) is fundamental for the assessment of many diseases, due to its excellent tissue contrast characterization. This is based on quantitative techniques, such as T1 , T2 , and T2* mapping. Quantitative MRI…

Purpose: In multi-spectral imaging (MSI), several fast spin echo volumes with discrete Larmor frequency offsets are acquired in an interleaved fashion with multiple concatenations. Here, a variable resolution (VR) method to nearly halve…

医学物理 · 物理学 2023-06-06 Nikolai J. Mickevicius , Azadeh Sharafi , Andrew S. Nencka , Kevin M. Koch

As the misuse of AI-generated images grows, generalizable image detection techniques are urgently needed. Recent state-of-the-art (SOTA) methods adopt aligned training datasets to reduce content, size, and format biases, empowering models…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Yiheng Li , Yang Yang , Zichang Tan , Gao Li , Zhen Lei , Wenhao Wang

When taking images of some occluded content, one is often faced with the problem that every individual image frame contains unwanted artifacts, but a collection of images contains all relevant information if properly aligned and aggregated.…

计算机视觉与模式识别 · 计算机科学 2024-05-21 Monika Kwiatkowski , Simon Matern , Olaf Hellwich

Ultrasound (US) imaging is a fast and non-invasive imaging modality which is widely used for real-time clinical imaging applications without concerning about radiation hazard. Unfortunately, it often suffers from poor visual quality from…

计算机视觉与模式识别 · 计算机科学 2020-06-29 Shujaat Khan , Jaeyoung Huh , Jong Chul Ye

Novel Magnetic Resonance (MR) imaging modalities can quantify hemodynamics but require long acquisition times, precluding its widespread use for early diagnosis of cardiovascular disease. To reduce the acquisition times, reconstruction…

图像与视频处理 · 电气工程与系统科学 2022-01-12 Lauren Partin , Daniele E. Schiavazzi , Carlos A. Sing Long

Metal artifact reduction (MAR) is a challenging problem in computed tomography (CT) imaging. A popular class of MAR methods replace sinogram measurements that are corrupted by metal with artificial data. While these ``projection…

医学物理 · 物理学 2021-01-27 T. Humphries , J. Wang

Deep learning based generative adversarial networks (GAN) can effectively perform image reconstruction with under-sampled MR data. In general, a large number of training samples are required to improve the reconstruction performance of a…

图像与视频处理 · 电气工程与系统科学 2021-05-19 Jun Lv , Guangyuan Li , Xiangrong Tong , Weibo Chen , Jiahao Huang , Chengyan Wang , Guang Yang

Optical projection tomography (OPT) is a powerful tool for biomedical studies. It achieves 3D visualization of mesoscopic biological samples with high spatial resolution using conventional tomographic-reconstruction algorithms. However,…

光学 · 物理学 2025-02-07 Yan Liu , Jonathan Dong , Thanh-an Pham , François Marelli , Michael Unser

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

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

It is well known that electroencephalograms (EEGs) often contain artifacts due to muscle activity, eye blinks, and various other causes. Detecting such artifacts is an essential first step toward a correct interpretation of EEGs. Although…

信号处理 · 电气工程与系统科学 2022-08-05 Wei Yan Peh , Yuanyuan Yao , Justin Dauwels

Purpose: The radial k-space trajectory is a well-established sampling trajectory used in conjunction with magnetic resonance imaging. However, the radial k-space trajectory requires a large number of radial lines for high-resolution…

计算机视觉与模式识别 · 计算机科学 2018-01-10 Yo Seob Han , Jaejun Yoo , Jong Chul Ye

Image denoising or artefact removal using deep learning is possible in the availability of supervised training dataset acquired in real experiments or synthesized using known noise models. Neither of the conditions can be fulfilled for…

图像与视频处理 · 电气工程与系统科学 2020-11-23 Suyog Jadhav , Sebastian Acuña , Krishna Agarwal , Dilip K. prasad