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Due to its non-invasive and non-radiating nature, along with its low cost, ultrasound (US) imaging is widely used in medical applications. Typical B-mode US images have limited resolution and contrast and weak physical interpretation.…

信号处理 · 电气工程与系统科学 2022-05-18 Avner Shultzman , Yonina C. Eldar

Neural networks are seeing rapid adoption in purely inertial odometry, where accelerometer and gyroscope measurements from commodity inertial measurement units (IMU) are used to regress displacements and associated uncertainties. They can…

Modern reconstruction methods for magnetic resonance imaging (MRI) exploit the spatially varying sensitivity profiles of receive-coil arrays as additional source of information. This allows to reduce the number of time-consuming…

医学物理 · 物理学 2017-09-12 Martin Uecker

Augmentation-based self-supervised learning methods have shown remarkable success in self-supervised visual representation learning, excelling in learning invariant features but often neglecting equivariant ones. This limitation reduces the…

计算机视觉与模式识别 · 计算机科学 2024-12-05 Qin Wang , Kai Krajsek , Hanno Scharr

Purpose: To develop a strategy for training a physics-guided MRI reconstruction neural network without a database of fully-sampled datasets. Theory and Methods: Self-supervised learning via data under-sampling (SSDU) for physics-guided deep…

图像与视频处理 · 电气工程与系统科学 2020-07-06 Burhaneddin Yaman , Seyed Amir Hossein Hosseini , Steen Moeller , Jutta Ellermann , Kâmil Uğurbil , Mehmet Akçakaya

Using single-task deep learning methods to reconstruct Magnetic Resonance Imaging (MRI) data acquired with different imaging sequences is inherently challenging. The trained deep learning model typically lacks generalizability, and the…

图像与视频处理 · 电气工程与系统科学 2024-04-23 Wanyu Bian , Albert Jang , Fang Liu

The field of computer vision is undergoing a paradigm shift toward large-scale foundation model pre-training via self-supervised learning (SSL). Leveraging large volumes of unlabeled brain MRI data, such models can learn anatomical priors…

图像与视频处理 · 电气工程与系统科学 2026-01-15 Petros Koutsouvelis , Matej Gazda , Leroy Volmer , Sina Amirrajab , Kamil Barbierik , Branislav Setlak , Jakub Gazda , Peter Drotar

Quantitative susceptibility mapping (QSM) utilizes MRI signal phase to infer estimates of local tissue magnetism (magnetic susceptibility), which has been shown useful to provide novel image contrast and as biomarkers of abnormal tissue.…

医学物理 · 物理学 2019-04-16 Juan Liu , Kevin M. Koch

This paper introduces a novel framework for image and video demoir\'eing by integrating Maximum A Posteriori (MAP) estimation with advanced deep learning techniques. Demoir\'eing addresses inherently nonlinear degradation processes, which…

计算机视觉与模式识别 · 计算机科学 2025-06-23 Liangyan Li , Yimo Ning , Kevin Le , Wei Dong , Yunzhe Li , Jun Chen , Xiaohong Liu

Federated learning (FL) based magnetic resonance (MR) image reconstruction can facilitate learning valuable priors from multi-site institutions without violating patient's privacy for accelerating MR imaging. However, existing methods rely…

图像与视频处理 · 电气工程与系统科学 2023-05-11 Juan Zou , Cheng Li , Ruoyou Wu , Tingrui Pei , Hairong Zheng , Shanshan Wang

Unsupervised deep-learning (DL) models were recently proposed for deformable image registration tasks. In such models, a neural-network is trained to predict the best deformation field by minimizing some dissimilarity function between the…

计算机视觉与模式识别 · 计算机科学 2020-08-11 Samah Khawaled , Moti Freiman

As a new machine learning approach, extreme learning machine (ELM) has received wide attentions due to its good performances. However, when directly applied to the hyperspectral image (HSI) classification, the recognition rate is too low.…

计算机视觉与模式识别 · 计算机科学 2017-11-17 Faxian Cao , Zhijing Yang , Jinchang Ren , Mengying Jiang , Wing-Kuen Ling

Radio frequency (RF)-based indoor localization offers significant promise for applications such as indoor navigation, augmented reality, and pervasive computing. While deep learning has greatly enhanced localization accuracy and robustness,…

信息论 · 计算机科学 2025-12-09 Guosheng Wang , Shen Wang , Lei Yang

In this paper, we introduce a new image representation based on a multilayer kernel machine. Unlike traditional kernel methods where data representation is decoupled from the prediction task, we learn how to shape the kernel with…

机器学习 · 统计学 2016-10-26 Julien Mairal

Nonparametric approaches have shown promising results on reconstructing 3D human mesh from a single monocular image. Unlike previous approaches that use a parametric human model like skinned multi-person linear model (SMPL), and attempt to…

计算机视觉与模式识别 · 计算机科学 2020-03-03 Kevin Lin , Lijuan Wang , Ying Jin , Zicheng Liu , Ming-Ting Sun

We introduce a fast model based deep learning approach for calibrationless parallel MRI reconstruction. The proposed scheme is a non-linear generalization of structured low rank (SLR) methods that self learn linear annihilation filters from…

机器学习 · 计算机科学 2020-01-22 Aniket Pramanik , Hemant Aggarwal , Mathews Jacob

Deep learning approaches to accelerated MRI take a matrix of sampled Fourier-space lines as input and produce a spatial image as output. In this work we show that by careful choice of the offset used in the sampling procedure, the…

图像与视频处理 · 电气工程与系统科学 2020-02-05 Aaron Defazio

Current spatiotemporal deep learning approaches to Magnetic Resonance Fingerprinting (MRF) build artefact-removal models customised to a particular k-space subsampling pattern which is used for fast (compressed) acquisition. This may not be…

图像与视频处理 · 电气工程与系统科学 2022-02-14 Ketan Fatania , Carolin M. Pirkl , Marion I. Menzel , Peter Hall , Mohammad Golbabaee

The need for a large amount of labeled data in the supervised setting has led recent studies to utilize self-supervised learning to pre-train deep neural networks using unlabeled data. Many self-supervised training strategies have been…

计算机视觉与模式识别 · 计算机科学 2022-04-06 Mojtaba Bahrami , Mahsa Ghorbani , Nassir Navab

Magnetic resonance imaging (MRI) is known to be a slow imaging modality and undersampling in k-space has been used to increase the imaging speed. However, image reconstruction from undersampled k-space data is an ill-posed inverse problem.…

图像与视频处理 · 电气工程与系统科学 2019-08-08 Jing Cheng , Haifeng Wang , Leslie Ying , Dong Liang
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