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Image reconstruction for positron emission tomography (PET) is challenging because of the ill-conditioned tomographic problem and low counting statistics. Kernel methods address this challenge by using kernel representation to incorporate…

Image and Video Processing · Electrical Eng. & Systems 2022-05-26 Siqi Li , Guobao Wang

Pulse Shape Discrimination (PSD) is a widely used technique in many experimental analysis. In this study, we specifically aimed to assess the effectiveness of PSD in accurately measuring decay time. We measured the decay times of a 0.1 wt%…

High Energy Physics - Experiment · Physics 2024-10-29 S. B. Hong , J. S. Park

The measurement of the photon number distribution (PND) allows one to extract metrics of non-classicality of fundamental and technological relevance, but in principle it requires the use of detectors with photon number resolving (PNR)…

Parkinson's Disease (PD) affects millions globally, impacting movement. Prior research utilized deep learning for PD prediction, primarily focusing on medical images, neglecting the data's underlying manifold structure. This work proposes a…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Jun-En Ding , Chien-Chin Hsu , Feng Liu

We conduct a comprehensive study on a new task named power battery detection (PBD), which aims to localize the dense cathode and anode plates endpoints from X-ray images to evaluate the quality of power batteries. Existing manufacturers…

Computer Vision and Pattern Recognition · Computer Science 2024-03-01 Xiaoqi Zhao , Youwei Pang , Zhenyu Chen , Qian Yu , Lihe Zhang , Hanqi Liu , Jiaming Zuo , Huchuan Lu

The European XFEL, currently under construction, will produce a coherent X-ray pulse every 222 ns in pulse trains of up to 2700 pulses. In conjunction with the fast 2D area detectors currently under development, it will be possible to…

Instrumentation and Detectors · Physics 2011-11-17 Julian Becker , Christian Gutt , Heinz Graafsma

A Bayesian approach is proposed for pulse shape discrimination of photons and neutrons in liquid organic scinitillators. Instead of drawing a decision boundary, each pulse is assigned a photon or neutron confidence probability. This allows…

Data Analysis, Statistics and Probability · Physics 2017-03-06 Mateusz Monterial , Peter Marleau , Shaun Clarke , Sara Pozzi

Recent works have shown that deep neural networks can achieve super-human performance in a wide range of image classification tasks in the medical imaging domain. However, these works have primarily focused on classification accuracy,…

Computer Vision and Pattern Recognition · Computer Science 2020-09-10 Gongbo Liang , Yu Zhang , Xiaoqin Wang , Nathan Jacobs

Photoacoustic (PA) computed tomography (PACT) shows great potentials in various preclinical and clinical applications. A great number of measurements are the premise that obtains a high-quality image, which implies a low imaging rate or a…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Hengrong Lan , Juze Zhang , Changchun Yang , Fei Gao

Pulsar searches are computationally demanding efforts to discover dispersed periodic signals in time- and frequency-resolved data from radio telescopes. The complexity and computational expense of simultaneously determining the…

Instrumentation and Methods for Astrophysics · Physics 2021-07-14 Lars Künkel , Rajat M. Thomas , Joris P. W. Verbiest

Photon Counting Detectors (PCDs) open new opportunities in X-ray imaging. Pixie III is a PCD using simultaneously two energy thresholds. This enables to acquire images using two distinct energy bins in a single exposure and allows to…

Instrumentation and Detectors · Physics 2023-02-15 Rémi Granger , Luc Salvo , Sabine Rolland du Roscoat , Pierre Lhuissier

Point cloud based methods have produced promising results in areas such as 3D object detection in autonomous driving. However, most of the recent point cloud work focuses on single depth sensor data, whereas less work has been done on…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Walid Bekhtaoui , Ruhan Sa , Brian Teixeira , Vivek Singh , Klaus Kirchberg , Yao-jen Chang , Ankur Kapoor

The number of neurons that can be simultaneously recorded doubles every seven years. This ever increasing number of recorded neurons opens up the possibility to address new questions and extract higher dimensional stimuli from the…

Neurons and Cognition · Quantitative Biology 2018-04-27 Anna Kutschireiter , Jean-Pascal Pfister

X-ray photon-counting computed tomography (PCCT) for extremity allows multi-energy high-resolution (HR) imaging but its radiation dose can be further improved. Despite the great potential of deep learning techniques, their application in HR…

Reliable single photon detection is the foundation for practical quantum communication and networking. However, today's superconducting nanowire single photon detector(SNSPD) inherently fails to distinguish between genuine photon events and…

Photonic technologies have shown a promising way to build high-speed and high-energy-efficiency neural network accelerators. In previously presented photonic neural networks, architectures are mainly designed for fully-connected layers.…

Signal Processing · Electrical Eng. & Systems 2020-03-02 Shaofu Xu , Jing Wang , Weiwen Zou

Head pose estimation and tracking is useful in variety of medical applications. With the advent of RGBD cameras like Kinect, it has become feasible to do markerless tracking by estimating the head pose directly from the point clouds. One…

Computer Vision and Pattern Recognition · Computer Science 2018-07-11 Omer Rajput , Nils Gessert , Martin Gromniak , Lars Matthäus , Alexander Schlaefer

Programmable unitary photonic networks that interfere hundreds of modes are emerging as a key technology in energy-efficient sensing, machine learning, cryptography, and linear optical quantum computing applications. In this work, we…

Optics · Physics 2022-11-01 Sunil Pai , Olav Solgaard , Shanhui Fan , David A. B. Miller

One of the challenges facing the adoption of digital pathology workflows for clinical use is the need for automated quality control. As the scanners sometimes determine focus inaccurately, the resultant image blur deteriorates the scanned…

Image and Video Processing · Electrical Eng. & Systems 2018-11-16 Mahdi S. Hosseini , Yueyang Zhang , Lyndon Chan , Konstantinos N. Plataniotis , Jasper A. Z. Brawley-Hayes , Savvas Damaskinos

Research on laser-plasma interaction in the quantum-electrodynamic (QED) regime has been greatly advanced by particle-in-cell & Monte-Carlo simulations (PIC-MC). While these simulations are widely used, we find that noticeable numerical…

Computational Physics · Physics 2022-02-21 Yinlong Guo , Xuesong Geng , Liangliang Ji , Baifei Shen , Ruxin Li