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Multi-dimensional magnetic resonance spectroscopy is an important tool for studying molecular structures, interactions and dynamics in bio-engineering. The data acquisition time, however, is relatively long and non-uniform sampling can be…

医学物理 · 物理学 2017-01-26 Xiaobo Qu , Jiaxi Ying , Jian-Feng Cai , Zhong Chen

Functional Magnetic Resonance Imaging (fMRI) is a neuroimaging technique with pivotal importance due to its scientific and clinical applications. As with any widely used imaging modality, there is a need to ensure the quality of the same,…

图像与视频处理 · 电气工程与系统科学 2020-09-29 David Calhas , Rui Henriques

Quantitative MRI (qMRI) is becoming increasingly important for research and clinical applications, however, state-of-the-art reconstruction methods for qMRI are computationally prohibitive. We propose a temporal multiscale approach to…

最优化与控制 · 数学 2021-03-31 Samuel Cortinhas , Mohammad Golbabaee , Matthias J. Ehrhardt

This paper proposes a novel approach for rendering a pre-trained Neural Radiance Field (NeRF) in real-time on resource-constrained devices. We introduce Re-ReND, a method enabling Real-time Rendering of NeRFs across Devices. Re-ReND is…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Sara Rojas , Jesus Zarzar , Juan Camilo Perez , Artsiom Sanakoyeu , Ali Thabet , Albert Pumarola , Bernard Ghanem

The estimation of multi-parametric quantitative maps from Magnetic Resonance Fingerprinting (MRF) compressed sampled acquisitions, albeit successful, remains a challenge due to the high underspampling rate and artifacts naturally occuring…

图像与视频处理 · 电气工程与系统科学 2024-07-30 Perla Mayo , Matteo Cencini , Ketan Fatania , Carolin M. Pirkl , Marion I. Menzel , Bjoern H. Menze , Michela Tosetti , Mohammad Golbabaee

Real-time magnetic resonance imaging (MRI) methods generally shorten the measuring time by acquiring less data than needed according to the sampling theorem. In order to obtain a proper image from such undersampled data, the reconstruction…

数值分析 · 数学 2013-12-05 Housen Li , Markus Haltmeier , Shuo Zhang , Jens Frahm , Axel Munk

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

Magnetic resonance imaging is a powerful imaging modality that can provide versatile information but it has a bottleneck problem "slow imaging speed". Reducing the scanned measurements can accelerate MR imaging with the aid of powerful…

图像与视频处理 · 电气工程与系统科学 2020-12-17 Shanshan Wang , Taohui Xiao , Qiegen Liu , Hairong Zheng

Real-time classification of Electromyography signals is the most challenging part of controlling a prosthetic hand. Achieving a high classification accuracy of EMG signals in a short delay time is still challenging. Recurrent neural…

信号处理 · 电气工程与系统科学 2021-09-14 Reza Bagherian Azhiri , Mohammad Esmaeili , Mehrdad Nourani

Magnetic resonance (MR) fingerprinting is a new quantitative imaging paradigm, which simultaneously acquires multiple MR tissue parameter maps in a single experiment. In this paper, we present an estimation-theoretic framework to perform…

信号处理 · 电气工程与系统科学 2018-10-03 Bo Zhao , Justin P. Haldar , Congyu Liao , Dan Ma , Yun Jiang , Mark A. Griswold , Kawin Setsompop , Lawrence L. Wald

Quantification of tissue parameters using MRI is emerging as a powerful tool in clinical diagnosis and research studies. The need for multiple long scans with different acquisition parameters prohibits quantitative MRI from reaching…

定量方法 · 定量生物学 2024-08-07 Amir Heydari , Abbas Ahmadi , Tae Hyung Kim , Berkin Bilgic

Functional Magnetic Resonance Imaging (fMRI) data is a widely used kind of four-dimensional biomedical data, which requires effective compression. However, fMRI compressing poses unique challenges due to its intricate temporal dynamics, low…

图像与视频处理 · 电气工程与系统科学 2024-03-01 Ruoran Li , Runzhao Yang , Wenxin Xiang , Yuxiao Cheng , Tingxiong Xiao , Jinli Suo

Consistency of the predictions with respect to the physical forward model is pivotal for reliably solving inverse problems. This consistency is mostly un-controlled in the current end-to-end deep learning methodologies proposed for the…

图像与视频处理 · 电气工程与系统科学 2020-07-07 Dongdong Chen , Mike E. Davies , Mohammad Golbabaee

We propose a novel numerical approach to separate multiple tissue compartments in image voxels and to estimate quantitatively their nuclear magnetic resonance (NMR) properties and mixture fractions, given magnetic resonance fingerprinting…

计算机视觉与模式识别 · 计算机科学 2020-11-24 Mohammad Golbabaee , Clarice Poon

Magnetic resonance imaging (MRI) nowadays serves as an important modality for diagnostic and therapeutic guidance in clinics. However, the {\it slow acquisition} process, the dynamic deformation of organs, as well as the need for {\it…

机器学习 · 计算机科学 2016-09-15 Morteza Mardani , Georgios B. Giannakis , Kamil Ugurbil

Radio frequency fingerprinting (RFF) is a promising device authentication technique for securing the Internet of things. It exploits the intrinsic and unique hardware impairments of the transmitters for RF device identification. In…

信号处理 · 电气工程与系统科学 2023-06-26 Yuan Zeng , Yi Gong , Jiawei Liu , Shangao Lin , Zidong Han , Ruoxiao Cao , Kaibin Huang , Khaled Ben Letaief

Magnetic Resonance Fingerprinting (MRF) enables fast quantitative imaging, yet reconstructing high-resolution 3D data remains computationally demanding. Non-Cartesian reconstructions require repeated non-uniform FFTs, and the commonly used…

图像与视频处理 · 电气工程与系统科学 2026-02-13 Yonatan Urman , Mark Nishimura , Daniel Abraham , Xiaozhi Cao , Kawin Setsompop

To increase the flexibility and scalability of deep neural networks for image reconstruction, a framework is proposed based on bandpass filtering. For many applications, sensing measurements are performed indirectly. For example, in…

计算机视觉与模式识别 · 计算机科学 2018-11-27 Joseph Y. Cheng , Feiyu Chen , Marcus T. Alley , John M. Pauly , Shreyas S. Vasanawala

We propose a novel two-phase approach to functional network estimation of multi-subject functional Magnetic Resonance Imaging (fMRI) data, which applies model-based image segmentation to determine a group-representative connectivity map. In…

统计计算 · 统计学 2018-09-05 Aditi Iyer , Bingjing Tang , Vinayak Rao , Nan Kong

Cardiac magnetic resonance imaging (MRI) requires reconstructing a real-time video of a beating heart from continuous highly under-sampled measurements. This task is challenging since the object to be reconstructed (the heart) is…

图像与视频处理 · 电气工程与系统科学 2024-01-12 Johannes F. Kunz , Stefan Ruschke , Reinhard Heckel