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High-resolution magnetic resonance imaging (MRI) is essential in clinical diagnosis. However, its long acquisition time remains a critical issue. Parallel imaging (PI) is a common approach to reduce acquisition time by periodically skipping…

图像与视频处理 · 电气工程与系统科学 2025-06-10 Hao Li , Yusheng Zhou , Jianan Liu , Xiling Liu , Tao Huang , Zhihan Lyu , Weidong Cai , Wei Chen

Quantitative T1rho mapping has shown promise in clinical and research studies. However, it suffers from long scan times. Deep learning-based techniques have been successfully applied in accelerated quantitative MR parameter mapping.…

图像与视频处理 · 电气工程与系统科学 2024-07-25 Yuanyuan Liu , Jinwen Xie , Zhuo-Xu Cui , Qingyong Zhu , Jing Cheng , Dong Liang , Yanjie Zhu

Dynamic magnetic resonance imaging (DMRI) is an effective imaging tool for diagnosis tasks that require motion tracking of a certain anatomy. To speed up DMRI acquisition, k-space measurements are commonly undersampled along spatial or…

图像与视频处理 · 电气工程与系统科学 2023-09-20 Di Xu , Hengjie Liu , Dan Ruan , Ke Sheng

Dynamic MRI suffers from limited spatiotemporal resolution due to long acquisition times. Undersampling k-space accelerates imaging but makes accurate reconstruction challenging. Supervised deep learning methods achieve impressive results…

图像与视频处理 · 电气工程与系统科学 2025-11-18 Yuanyuan Liu , Yuanbiao Yang , Jing Cheng , Zhuo-Xu Cui , Qingyong Zhu , Congcong Liu , Yuliang Zhu , Jingran Xu , Hairong Zheng , Dong Liang , Yanjie Zhu

Undersampling the k-space during MR acquisitions saves time, however results in an ill-posed inversion problem, leading to an infinite set of images as possible solutions. Traditionally, this is tackled as a reconstruction problem by…

图像与视频处理 · 电气工程与系统科学 2022-02-10 Kerem C. Tezcan , Neerav Karani , Christian F. Baumgartner , Ender Konukoglu

Accelerated magnetic resonance imaging involves reconstructing fully sampled images from undersampled k-space measurements. Current state-of-the-art approaches have mainly focused on either end-to-end supervised training inspired by…

图像与视频处理 · 电气工程与系统科学 2025-02-25 Xinzhe Luo , Yingzhen Li , Chen Qin

Current Deep Learning methods for environment segmentation and velocity estimation rely on Convolutional Recurrent Neural Networks to exploit spatio-temporal relationships within obtained sensor data. These approaches derive scene dynamics…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Marco Braun , Moritz Luszek , Mirko Meuter , Dominic Spata , Kevin Kollek , Anton Kummert

Compressed sensing (CS) MRI relies on adequate undersampling of the k-space to accelerate the acquisition without compromising image quality. Consequently, the design of optimal sampling patterns for these k-space coefficients has received…

图像与视频处理 · 电气工程与系统科学 2021-01-26 Iris A. M. Huijben , Bastiaan S. Veeling , Ruud J. G. van Sloun

Accelerated MRI reconstructs images of clinical anatomies from sparsely sampled signal data to reduce patient scan times. While recent works have leveraged deep learning to accomplish this task, such approaches have often only been explored…

图像与视频处理 · 电气工程与系统科学 2022-12-01 Michael S. Yao , Michael S. Hansen

Magnetic Resonance (MR) Fingerprinting is an emerging multi-parametric quantitative MR imaging technique, for which image reconstruction methods utilizing low-rank and subspace constraints have achieved state-of-the-art performance.…

图像与视频处理 · 电气工程与系统科学 2023-05-26 Hengfa Lu , Huihui Ye , Lawrence L. Wald , Bo Zhao

In Magnetic Resonance Imaging (MRI), image acquisitions are often undersampled in the measurement domain to accelerate the scanning process, at the expense of image quality. However, image quality is a crucial factor that influences the…

图像与视频处理 · 电气工程与系统科学 2024-05-31 Mevan Ekanayake , Zhifeng Chen , Mehrtash Harandi , Gary Egan , Zhaolin Chen

Deep learning-based methods have achieved prestigious performance for magnetic resonance imaging (MRI) reconstruction, enabling fast imaging for many clinical applications. Previous methods employ convolutional networks to learn the image…

图像与视频处理 · 电气工程与系统科学 2024-06-19 Yidong Zhao , Yi Zhang , Qian Tao

Owing to the inherently dynamic and complex characteristics of cardiac magnetic resonance (CMR) imaging, high-quality and diverse k-space data are rarely available in practice, which in turn hampers robust reconstruction of dynamic cardiac…

计算机视觉与模式识别 · 计算机科学 2025-09-10 Guan Yu , Zhang Jianhua , Liang Dong , Liu Qiegen

Cardiac magnetic resonance (CMR) imaging is widely used to characterize cardiac morphology and function. To accelerate CMR imaging, various methods have been proposed to recover high-quality spatiotemporal CMR images from highly…

图像与视频处理 · 电气工程与系统科学 2025-11-18 Xuanyu Tian , Lixuan Chen , Qing Wu , Xiao Wang , Jie Feng , Yuyao Zhang , Hongjiang Wei

Dynamic Magnetic Resonance Imaging (MRI) is a crucial non-invasive method used to capture the movement of internal organs and tissues, making it a key tool for medical diagnosis. However, dynamic MRI faces a major challenge: long…

图像与视频处理 · 电气工程与系统科学 2024-09-20 Tamir Shor , Chaim Baskin , Alex Bronstein

Magnetic Resonance Fingerprinting (MRF) is an imaging technique acquiring unique time signals for different tissues. Although the acquisition is highly accelerated, the reconstruction time remains a problem, as the state-of-the-art template…

Magnetic resonance imaging (MRI) reconstruction is an active inverse problem which can be addressed by conventional compressed sensing (CS) MRI algorithms that exploit the sparse nature of MRI in an iterative optimization-based manner.…

计算机视觉与模式识别 · 计算机科学 2019-06-13 Yuxiang Dai , Peixian Zhuang

We present a new approach for representing and reconstructing multidimensional magnetic resonance imaging (MRI) data. Our method builds on a novel, learned feature-based image representation that disentangles different types of features,…

图像与视频处理 · 电气工程与系统科学 2026-01-01 Ruiyang Zhao , Fan Lam

Incoherent k-space undersampling and deep learning-based reconstruction methods have shown great success in accelerating MRI. However, the performance of most previous methods will degrade dramatically under high acceleration factors, e.g.,…

图像与视频处理 · 电气工程与系统科学 2026-01-21 Jin Liu , Qing Lin , Zhuang Xiong , Shanshan Shan , Chunyi Liu , Min Li , Feng Liu , G. Bruce Pike , Hongfu Sun , Yang Gao

Learning-based synthetic multi-contrast MRI commonly involves deep models trained using high-quality images of source and target contrasts, regardless of whether source and target domain samples are paired or unpaired. This results in…

图像与视频处理 · 电气工程与系统科学 2021-05-13 Mahmut Yurt , Salman Ul Hassan Dar , Muzaffer Özbey , Berk Tınaz , Kader Karlı Oğuz , Tolga Çukur