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相关论文: Towards direct neuronal current imaging via ultra-…

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Magnetic Resonance Imaging (MRI) is universally acknowledged as an excellent tool to extract detailed spatial information with minimally invasive measurements. Efforts toward ultra-low-field (ULF) MRI are made to simplify the scanners and…

应用物理 · 物理学 2019-10-28 Giuseppe Bevilacqua , Valerio Biancalana , Yordanka Dancheva , Antonio Vigilante

Measuring spins is the corner stone of a variety of analytical techniques including modern magnetic resonance imaging (MRI). The full potential of spin imaging and sensing across length scales is hindered by the achievable signal-to-noise…

介观与纳米尺度物理 · 物理学 2015-06-12 S. Steinert , F. Ziem , L. Hall , A. Zappe , M. Schweikert , A. Aird , G. Balasubramanian , L. Hollenberg , J. Wrachtrup

Magnetic current imaging (MCI) is useful for non-destructive characterization of microelectronics, including both security analysis and failure analysis, because magnetic fields penetrate the materials that comprise these components to…

仪器与探测器 · 物理学 2024-05-22 Adrian Mariano , Jacob Lenz , Dmitro Martynowych , Christopher Miller , Sean Oliver

This article presents a novel undersampled magnetic resonance imaging (MRI) technique that leverages the concept of Neural Radiance Field (NeRF). With radial undersampling, the corresponding imaging problem can be reformulated into an image…

图像与视频处理 · 电气工程与系统科学 2024-03-05 Tae Jun Jang , Chang Min Hyun

This paper introduces a novel framework for image quality transfer based on conditional flow matching (CFM). Unlike conventional generative models that rely on iterative sampling or adversarial objectives, CFM learns a continuous flow…

计算机视觉与模式识别 · 计算机科学 2025-10-15 Huu Tien Nguyen , Ahmed Karam Eldaly

Neuronal electrical activity underlies human cognition including perception, attention, memory, language, and decision-making. Yet its direct, noninvasive measurement in the living human brain remains a fundamental challenge. Existing…

Magnetic resonance imaging at ultra-low fields (ULF MRI) is a promising new imaging method that uses SQUID sensors to measure the spatially encoded precession of pre-polarized nuclear spin populations at a microtesla-range measurement…

医学物理 · 物理学 2007-10-18 V. S. Zotev , A. N. Matlashov , P. L. Volegov , A. V. Urbaitis , M. A. Espy , R. H. Kraus

In this project, and through an understanding of neuronal system communication, A novel model serves as an assistive technology for locked-in people suffering from Motor neuronal disease (MND) is proposed. Work was done upon the potential…

医学物理 · 物理学 2018-09-05 Mahmoud Haroun , Mohamed Salah

For imaging of static object by the means of sequential repeated independent measurements, a theoretical modeling of the behavior of signal-to-noise ratio (SNR) with varying number of measurement is developed, based on the information…

光学 · 物理学 2016-03-02 Junhui Li , Bin Luo , Dongyue Yang , Guohua Wu , Longfei Yin , Hong Guo

Over the past decade, several studies have explored the potential of magnetic resonance fingerprinting (MRF) for the quantification of brain hemodynamics, oxygenation, and perfusion. Recent advances in simulation models and reconstruction…

信号处理 · 电气工程与系统科学 2025-12-16 T. Coudert , A. Delphin , A. Barrier , E L Barbier , B. Lemasson , J M Warnking , T. Christen

Accurate spatiotemporal image reconstruction methods are needed for a wide range of biomedical research areas but face challenges due to data incompleteness and computational burden. Data incompleteness arises from the undersampling often…

图像与视频处理 · 电气工程与系统科学 2024-10-10 Luke Lozenski , Refik Mert Cam , Mark D. Pagel , Mark A. Anastasio , Umberto Villa

Magnetic resonance imaging (MRI) is the cornerstone technique for diagnostic medicine, biology, and neuroscience. This imaging method is highly innovative, noninvasive and its impact continues to grow. It can be used for measuring changes…

Magnetic resonance imaging, based on the manipulation and detection of nuclear spins, is a powerful imaging technique that typically operates on the scale of millimeters to microns. Using magnetic resonance force microscopy, we have…

其他凝聚态物理 · 物理学 2007-06-27 H. J. Mamin , M. Poggio , C. L. Degen , D. Rugar

Due to the limitations of realizing artificial neural networks on prevalent von Neumann architectures, recent studies have presented neuromorphic systems based on spiking neural networks (SNNs) to reduce power and computational cost.…

神经与进化计算 · 计算机科学 2022-04-12 Joonghyun Song , Jiwon Shin , Hanseok Kim , Woo-Seok Choi

Classical ghost imaging is a computational imaging technique that employs patterned illumination. It is very similar in concept to the single-pixel camera in that an image may be reconstructed from a set of measurements even though all…

图像与视频处理 · 电气工程与系统科学 2021-03-10 Andrew M. Kingston , Wilfred K. Fullagar , Glenn R. Myers , Daishi Adams , Daniele Pelliccia , David M. Paganin

Capturing dynamic spatiotemporal neural activity is essential for understanding large-scale brain mechanisms. Functional magnetic resonance imaging (fMRI) provides high-resolution cortical representations that form a strong basis for…

图像与视频处理 · 电气工程与系统科学 2026-04-01 Wanying Qu , Jianxiong Gao , Wei Wang , Yanwei Fu

Determining the brain perfusion is an important task for the diagnosis and treatment of vascular diseases such as occlusions and intracerebral haemorrhage. Even after successful diagnosis and treatment, there is a high risk of restenosis or…

Purpose: Low-field MRI systems operate at single MHz-range frequencies, where signal losses are primarily dominated by thermal noise from the radio-frequency (RF) receive coils. Achieving operation close to this limit is essential for…

医学物理 · 物理学 2026-03-09 Teresa Guallart-Naval , José M. Algarín , Joseba Alonso

There is currently a paradigm shift in several power system monitoring applications, such as incipient fault detection and monitoring inverter-based resources, to transition from traditional phasor analytics to more informative waveform…

信号处理 · 电气工程与系统科学 2025-05-26 Narges Ehsani , Vishwanath Saragadam , Hamed Mohsenian-Rad

Ultralow-field nuclear magnetic resonance (NMR) provides a new regime for many applications ranging from materials science to fundamental physics. However, the experimentally observed spectra show asymmetric amplitudes, differing greatly…

量子物理 · 物理学 2019-02-22 Min Jiang , Wenjie Xu , Yunlan Ji , Ji Bian , Shiming Song , Xinhua Peng