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Diffusion MRI (dMRI) provides the ability to reconstruct neuronal fibers in the brain, $\textit{in vivo}$, by measuring water diffusion along angular gradient directions in q-space. High angular resolution diffusion imaging (HARDI) can…

机器学习 · 统计学 2018-05-30 Evan Schwab , René Vidal , Nicolas Charon

Positron Emission Tomography (PET) is an imaging method that can assess physiological function rather than structural disturbances by measuring cerebral perfusion or glucose consumption. However, this imaging technique relies on injection…

图像与视频处理 · 电气工程与系统科学 2021-03-10 Sahar Yousefi , Hessam Sokooti , Wouter M. Teeuwisse , Dennis F. R. Heijtel , Aart J. Nederveen , Marius Staring , Matthias J. P. van Osch

In this work we reduce undersampling artefacts in two-dimensional ($2D$) golden-angle radial cine cardiac MRI by applying a modified version of the U-net. We train the network on $2D$ spatio-temporal slices which are previously extracted…

图像与视频处理 · 电气工程与系统科学 2019-08-14 Andreas Kofler , Marc Dewey , Tobias Schaeffter , Christian Wald , Christoph Kolbitsch

Diffusion models (DMs) have shown promising results on single-image super-resolution and other image-to-image translation tasks. Benefiting from more computational resources and longer inference times, they are able to yield more realistic…

计算机视觉与模式识别 · 计算机科学 2024-10-24 Yuanting Fan , Chengxu Liu , Nengzhong Yin , Changlong Gao , Xueming Qian

This retrospective-prospective study evaluated whether a deep learning-based MRI reconstruction algorithm can preserve diagnostic quality in brain MRI scans accelerated up to fourfold, using both public and prospective clinical data. The…

图像与视频处理 · 电气工程与系统科学 2025-09-10 Jonathan I. Mandel , Shivaprakash Hiremath , Hedyeh Keshtgar , Timothy Scholl , Sadegh Raeisi

Deep learning networks have shown promising results in fast magnetic resonance imaging (MRI) reconstruction. In our work, we develop deep networks to further improve the quantitative and the perceptual quality of reconstruction. To begin…

Transformers have emerged as viable alternatives to convolutional neural networks owing to their ability to learn non-local region relationships in the spatial domain. The self-attention mechanism of the transformer enables transformers to…

图像与视频处理 · 电气工程与系统科学 2023-08-09 Rahul G. S. , Sriprabha Ramnarayanan , Mohammad Al Fahim , Keerthi Ram , Preejith S. P , Mohanasankar Sivaprakasam

Seismic impedance inversion is one of the most important part of geophysical exploration. However, due to random noise, the traditional semi-supervised learning (SSL) methods lack generalization and stability. To solve this problem, some…

地球物理 · 物理学 2024-06-26 Yingtian Liu , Yong Li , Xingan Hao , Huating Li , Zhangquan Liao , Junheng Peng

Interventional magnetic resonance imaging (i-MRI) for surgical guidance could help visualize the interventional process such as deep brain stimulation (DBS), improving the surgery performance and patient outcome. Different from…

计算机视觉与模式识别 · 计算机科学 2022-04-13 Ruiyang Zhao , Zhao He , Tao Wang , Suhao Qiu , Pawel Herman , Yanle Hu , Chencheng Zhang , Dinggang Shen , Bomin Sun , Guang-Zhong Yang , Yuan Feng

$\textbf{Background:}$ Accelerating dynamic MRI is vital for advancing clinical applications and improving patient comfort. Commonly, deep learning (DL) methods for accelerated dynamic MRI reconstruction typically rely on uniformly applying…

图像与视频处理 · 电气工程与系统科学 2025-03-24 George Yiasemis , Jan-Jakob Sonke , Jonas Teuwen

PURPOSE: Real-time assessment of ventricular volumes requires high acceleration factors. Residual convolutional neural networks (CNN) have shown potential for removing artifacts caused by data undersampling. In this study we investigated…

计算机视觉与模式识别 · 计算机科学 2020-09-07 Andreas Hauptmann , Simon Arridge , Felix Lucka , Vivek Muthurangu , Jennifer A. Steeden

Magnetic Resonance Imaging (MRI) is a critical tool in modern medical diagnostics, yet its prolonged acquisition time remains a critical limitation, especially in time-sensitive clinical scenarios. While undersampling strategies can…

图像与视频处理 · 电气工程与系统科学 2025-10-09 Mohammed Alsubaie , Wenxi Liu , Linxia Gu , Ovidiu C. Andronesi , Sirani M. Perera , Xianqi Li

Ultrasound imaging is a real-time diagnostic modality that reconstructs acoustic signals into visual representations of internal body structures. A key component in this process is beamforming, with the Delay and Sum (DAS) algorithm being a…

数值分析 · 数学 2025-07-22 Chiara Razzetta , Sara Garbarino , Michele Piana , Marco Crocco , Federico Benvenuto

Understanding the structure of the heart at the microscopic scale of cardiomyocytes and their aggregates provides new insights into the mechanisms of heart disease and enables the investigation of effective therapeutics. Diffusion Tensor…

Digital Subtraction Angiography (DSA) is one of the gold standards in vascular disease diagnosing. With the help of contrast agent, time-resolved 2D DSA images deliver comprehensive insights into blood flow information and can be utilized…

图像与视频处理 · 电气工程与系统科学 2024-05-20 Zhentao Liu , Huangxuan Zhao , Wenhui Qin , Zhenghong Zhou , Xinggang Wang , Wenping Wang , Xiaochun Lai , Chuansheng Zheng , Dinggang Shen , Zhiming Cui

Cardiac Magnetic Resonance (CMR) imaging is a critical tool for diagnosing and managing cardiovascular disease, yet its utility is often limited by the sparse acquisition of 2D short-axis slices, resulting in incomplete volumetric…

图像与视频处理 · 电气工程与系统科学 2025-08-22 Niklas Bubeck , Suprosanna Shit , Chen Chen , Can Zhao , Pengfei Guo , Dong Yang , Georg Zitzlsberger , Daguang Xu , Bernhard Kainz , Daniel Rueckert , Jiazhen Pan

This paper presents a real-time American Sign Language (ASL) recognition system utilizing a hybrid deep learning architecture combining 3D Convolutional Neural Networks (3D CNN) with Long Short-Term Memory (LSTM) networks. The system…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Dawnena Key

We present a novel adversarial distortion learning (ADL) for denoising two- and three-dimensional (2D/3D) biomedical image data. The proposed ADL consists of two auto-encoders: a denoiser and a discriminator. The denoiser removes noise from…

图像与视频处理 · 电气工程与系统科学 2024-03-13 Morteza Ghahremani , Mohammad Khateri , Alejandra Sierra , Jussi Tohka

Diffusion Tensor Cardiac Magnetic Resonance (DT-CMR) enables us to probe the microstructural arrangement of cardiomyocytes within the myocardium in vivo and non-invasively, which no other imaging modality allows. This innovative technology…

图像与视频处理 · 电气工程与系统科学 2022-06-22 Michael Tanzer , Pedro Ferreira , Andrew Scott , Zohya Khalique , Maria Dwornik , Dudley Pennell , Guang Yang , Daniel Rueckert , Sonia Nielles-Vallespin

Shortening acquisition time and reducing motion artifacts are the most critical challenges in magnetic resonance imaging (MRI). Deep learning-based image restoration has emerged as a promising solution capable of generating high-resolution…