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Magnetic resonance imaging (MRI) is mainly limited by long scanning time and vulnerable to human tissue motion artifacts, in 3D clinical scenarios. Thus, k-space undersampling is used to accelerate the acquisition of MRI while leading to…

图像与视频处理 · 电气工程与系统科学 2022-01-11 Shengke Xue , Ruiliang Bai , Xinyu Jin

Unsupervised image segmentation is an important task in many real-world scenarios where labelled data is of scarce availability. In this paper we propose a novel approach that harnesses recent advances in unsupervised learning using a…

计算机视觉与模式识别 · 计算机科学 2022-10-24 Moshe Eliasof , Nir Ben Zikri , Eran Treister

Annotating lots of 3D medical images for training segmentation models is time-consuming. The goal of weakly supervised semantic segmentation is to train segmentation models without using any ground truth segmentation masks. Our work…

图像与视频处理 · 电气工程与系统科学 2024-04-23 Marius Schmidt-Mengin , Alexis Benichoux , Shibeshih Belachew , Nikos Komodakis , Nikos Paragios

Diffusion magnetic resonance imaging (dMRI) enables non-invasive investigation of tissue microstructure. The Standard Model (SM) of white matter aims to disentangle dMRI signal contributions from intra- and extra-axonal water compartments.…

图像与视频处理 · 电气工程与系统科学 2026-04-15 Tom Hendriks , Gerrit Arends , Edwin Versteeg , Anna Vilanova , Maxime Chamberland , Chantal M. W. Tax

Magnetic Resonance Elastography (MRE) can characterize biomechanical properties of soft tissue for disease diagnosis and treatment planning. However, complicated wavefields acquired from MRE coupled with noise pose challenges for accurate…

图像与视频处理 · 电气工程与系统科学 2023-04-05 Shengyuan Ma , Runke Wang , Suhao Qiu , Ruokun Li , Qi Yue , Qingfang Sun , Liang Chen , Fuhua Yan , Guang-Zhong Yang , Yuan Feng

Magnetic Resonance Imaging (MRI) is a noninvasive imaging technique that provides exquisite soft-tissue contrast without using ionizing radiation. The clinical application of MRI may be limited by long data acquisition times; therefore, MR…

图像与视频处理 · 电气工程与系统科学 2020-07-10 Shen Zhao , Lee C. Potter , Kiryung Lee , Rizwan Ahmad

Optical diffraction tomography relies on solving an inverse scattering problem governed by the wave equation. Classical reconstruction algorithms are based on linear approximations of the forward model (Born or Rytov), which limits their…

计算工程、金融与科学 · 计算机科学 2017-09-01 Emmanuel Soubies , Thanh-An Pham , Michael Unser

In recent years Artificial Intelligence has emerged as a fundamental tool in medical applications. Despite this rapid development, deep neural networks remain black boxes that are difficult to explain, and this represents a major limitation…

图像与视频处理 · 电气工程与系统科学 2024-05-22 Tommaso Torda , Andrea Ciardiello , Simona Gargiulo , Greta Grillo , Simone Scardapane , Cecilia Voena , Stefano Giagu

We report an in-silico demonstration of an all-optical cell classification system using a single-layer diffractive neural network (DNN) optimized for real-world biomedical images. Implemented virtually with a spatial light modulator (SLM),…

光学 · 物理学 2025-09-03 Norihide Sagami , Yueyun Weng , Cheng Lei , Ryosuke Oketani , Kotaro Hiramatsu

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

Many nuclear safety applications need fast, portable, and accurate imagers to better locate radiation sources. The Rotating Scatter Mask (RSM) system is an emerging device with the potential to meet these needs. The main challenge is the…

信号处理 · 电气工程与系统科学 2023-08-01 Yilun Zhu , Clayton Scott , Darren Holland , George Landon , Aaron Fjeldsted , Azaree Lintereur

Neural Radiance Fields (NeRF) have constituted a remarkable breakthrough in image-based 3D reconstruction. However, their implicit volumetric representations differ significantly from the widely-adopted polygonal meshes and lack support…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Jiaxiang Tang , Hang Zhou , Xiaokang Chen , Tianshu Hu , Errui Ding , Jingdong Wang , Gang Zeng

A reconfigurable intelligent surface (RIS) enhanced non-orthogonal multiple access assisted backscatter communication (RIS-NOMABC) system is considered. A joint optimization problem over power reflection coefficients and phase shifts is…

信息论 · 计算机科学 2020-12-21 Jiakuo Zuo , Yuanwei Liu , Liang Yang , Lingyang Song , Ying-Chang Liang

Optical properties of thin film are greatly influenced by the thickness of each layer. Accurately predicting these thicknesses and their corresponding optical properties is important in the optical inverse design of thin films. However,…

机器学习 · 计算机科学 2025-06-13 Uijun Jung , Deokho Jang , Sungchul Kim , Jungho Kim

Multi-modal magnetic resonance imaging (MRI) is essential in clinics for comprehensive diagnosis and surgical planning. Nevertheless, the segmentation of multi-modal MR images tends to be time-consuming and challenging. Convolutional neural…

图像与视频处理 · 电气工程与系统科学 2019-08-07 Cheng Li , Hui Sun , Zaiyi Liu , Meiyun Wang , Hairong Zheng , Shanshan Wang

Magnetic Resonance Imaging (MRI) is widely used in clinical practice, but suffered from prolonged acquisition time. Although deep learning methods have been proposed to accelerate acquisition and demonstrate promising performance, they rely…

图像与视频处理 · 电气工程与系统科学 2025-12-30 Hao Zhang , Qi Wang , Jian Sun , Zhijie Wen , Jun Shi , Shihui Ying

Programming recurrent spiking neural networks (RSNNs) to robustly perform multi-timescale computation remains a difficult challenge. To address this, we describe a single-shot weight learning scheme to embed robust multi-timescale dynamics…

Compressed Sensing MRI reconstructs images of the body's internal anatomy from undersampled measurements, thereby reducing scan time. Recently, deep learning has shown great potential for reconstructing high-fidelity images from highly…

图像与视频处理 · 电气工程与系统科学 2025-04-07 Armeet Singh Jatyani , Jiayun Wang , Aditi Chandrashekar , Zihui Wu , Miguel Liu-Schiaffini , Bahareh Tolooshams , Anima Anandkumar

We consider an MRI reconstruction problem with input of k-space data at a very low undersampled rate. This can practically benefit patient due to reduced time of MRI scan, but it is also challenging since quality of reconstruction may be…

计算机视觉与模式识别 · 计算机科学 2019-04-11 Qiaoying Huang , Dong Yang , Pengxiang Wu , Hui Qu , Jingru Yi , Dimitris Metaxas

Time-harmonic acoustic inverse scattering concerns the ill-posed and nonlinear problem of determining the refractive index of an inaccessible, penetrable scatterer based on far field wave scattering data. When the scattering is weak, the…

数值分析 · 数学 2025-07-31 Ansh Desai , Jonathan Ma , Timo Lahivaara , Peter Monk
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