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Particle beam microscopy (PBM) performs nanoscale imaging by pixelwise capture of scalar values representing noisy measurements of the response from secondary electrons (SEs) integrated over a dwell time. Extended to metrology, goals…

数据分析、统计与概率 · 物理学 2023-08-15 Akshay Agarwal , Minxu Peng , Vivek K. Goyal

Atomic magnetometers are highly sensitive detectors of magnetic fields that monitor the evolution of the macroscopic magnetic moment of atomic vapors, and opening new applications in biological, physical, and chemical science. However, the…

量子物理 · 物理学 2022-03-01 Min Jiang , Wenjie Xu , Qing Li , Ze Wu , Dieter Suter , Xinhua Peng

Background: Magneto- and Electro-encephalography record the electromagnetic field generated by neural currents with high temporal frequency and good spatial resolution, and are therefore well suited for source localization in the time and…

In the present paper, we develop a novel Bayesian approach to the problem of estimating neural currents in the brain from a fixed distribution of magnetic field (called \emph{topography}), measured by magnetoencephalography. Differently…

应用统计 · 统计学 2014-03-20 Alberto Sorrentino , Gianvittorio Luria , Riccardo Aramini

Gesture recognition based on surface electromyography (sEMG) has been gaining importance in many 3D Interactive Scenes. However, sEMG is easily influenced by various forms of noise in real-world environments, leading to challenges in…

信号处理 · 电气工程与系统科学 2024-04-18 Weiyu Guo , Ziyue Qiao , Ying Sun , Hui Xiong

Secondary electron (SE) imaging techniques, such as scanning electron microscopy and helium ion microscopy (HIM), use electrons emitted by a sample in response to a focused beam of charged particles incident at a grid of raster scan…

信号处理 · 电气工程与系统科学 2026-03-12 Vaibhav Choudhary , Akshay Agarwal , Vivek K Goyal

Deep metric learning has attracted much attention in recent years, due to seamlessly combining the distance metric learning and deep neural network. Many endeavors are devoted to design different pair-based angular loss functions, which…

计算机视觉与模式识别 · 计算机科学 2020-11-06 Dingyi Zhang , Yingming Li , Zhongfei Zhang

According to a very popular belief - very widespread among non-scientific communities - the exploitation of narrow beams, a.k.a. "pencil beamforming", results in a prompt increase of exposure levels radiated by 5G Base Stations (BSs). To…

网络与互联网体系结构 · 计算机科学 2021-01-22 Luca Chiaraviglio , Simone Rossetti , Sara Saida , Stefania Bartoletti , Nicola Blefari-Melazzi

MEG and EEG are noninvasive functional neuroimaging techniques that provide recordings of brain activity with high temporal resolution, and thus provide a unique window to study fast time-scale neural dynamics in humans. However, the…

应用统计 · 统计学 2015-11-13 Camilo Lamus , Matti S. Hamalainen , Emery N. Brown , Patrick L. Purdon

We consider a network of agents that locate themselves in an environment through sensor measurements and aim to transmit a message signal to a base station via collaborative beamforming. The agents' sensor measurements result in…

信号处理 · 电气工程与系统科学 2021-03-19 Erfaun Noorani , Yagiz Savas , Alec Koppel , John Baras , Ufuk Topcu , Brian M. Sadler

Magnetoencephalography (MEG) and Electroencephalography (EEG) source estimates have thus far mostly been derived sample by sample, i.e., independent of each other in time. However, neuronal assemblies are heavily interconnected,…

定量方法 · 定量生物学 2019-09-09 Christoph Dinh , John GW Samuelsson , Alexander Hunold , Matti S Hämäläinen , Sheraz Khan

The quality of the inverse approach in electroencephalography (EEG) source analysis is - among other things - depending on the accuracy of the forward modeling approach, i.e., the simulation of the electric potential for a known dipole…

The Radio Environment Map (REM) provides an effective approach to Dynamic Spectrum Access (DSA) in Cognitive Radio Networks (CRNs). Previous results on REM construction show that there exists a tradeoff between the number of measurements…

网络与互联网体系结构 · 计算机科学 2016-11-18 Zhiqing Wei , Qixun Zhang , Zhiyong Feng , Wei Li , T. Aaron Gulliver

Depth electrodes used in stereoelectroencephalography (sEEG) and deep-brain stimulation (DBS) are essential tools for neural recording and stimulation. Traditional designs have limited spatial resolution, typically 8 to 16 cylindrical…

In the past five years, the use of generative and foundational AI systems has greatly improved the decoding of brain activity. Visual perception, in particular, can now be decoded from functional Magnetic Resonance Imaging (fMRI) with…

图像与视频处理 · 电气工程与系统科学 2024-03-15 Yohann Benchetrit , Hubert Banville , Jean-Rémi King

In practical scenarios involving the measurement of surface electromyography (sEMG) in muscles, particularly those areas near the heart, one of the primary sources of contamination is the presence of electrocardiogram (ECG) signals. To…

信号处理 · 电气工程与系统科学 2024-06-14 Cho-Yuan Lee , Kuan-Chen Wang , Kai-Chun Liu , Yu-Te Wang , Xugang Lu , Ping-Cheng Yeh , Yu Tsao

Epilepsy affects around 50 million people globally. Electroencephalography (EEG) or Magnetoencephalography (MEG) based spike detection plays a crucial role in diagnosis and treatment. Manual spike identification is time-consuming and…

机器学习 · 统计学 2026-03-16 Fangyi Wei , Jiajie Mo , Kai Zhang , Haipeng Shen , Srikantan Nagarajan , Fei Jiang

Spin-Exchange Relaxation-Free Optically Pumped Magnetometers (SERF-OPMs) are increasingly used in multichannel biomagnetic sensing, yet their timing performance remains poorly characterized. This contribution presents the first…

Accurate localization in Orthogonal Frequency Division Multiplexing (OFDM)-based massive Multiple-Input Multiple-Output (MIMO) systems depends critically on phase coherence across subcarriers and antennas. However, practical systems suffer…

信号处理 · 电气工程与系统科学 2026-01-21 Qing Zhang , Adham Sakhnini , Robbert Beerten , Haoqiu Xiong , Zhuangzhuang Cui , Yang Miao , Sofie Pollin

A brain--machine interface (BMI) based on motor imagery (MI) enables the control of devices using brain signals while the subject imagines performing a movement. It plays a vital role in prosthesis control and motor rehabilitation. To…

信号处理 · 电气工程与系统科学 2024-09-20 Xiaying Wang , Michael Hersche , Michele Magno , Luca Benini