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Direct electron detection is revolutionizing electron microscopy by offering lower noise, reduced point-spread function, and increased quantum efficiency. Among these advancements, the Timepix3 hybrid-pixel direct electron detector stands…

Direct electron detection is currently revolutionizing many fields of electron microscopy due to its lower noise, its reduced point-spread function, and its increased quantum efficiency. More specifically to this work, Timepix3 is a…

Instrumentation and Detectors · Physics 2023-12-21 Yves Auad , Jassem Baaboura , Jean-Denis Blazit , Marcel Tencé , Odile Stéphan , Mathieu Kociak , Luiz H. G. Tizei

This paper introduces a novel asynchronous, event-driven algorithm for real-time detection of small event clusters in event camera data. Like other hierarchical agglomerative clustering algorithms, the algorithm detects the event clusters…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 David El-Chai Ben-Ezra , Adar Tal , Daniel Brisk

The acquisition of a hyperspectral image is nowadays a standard technique used in the scanning transmission electron microscope. It relates the spatial position of the electron probe to the spectral data associated with it. In the case of…

There is a need to build intelligence in operating machinery and use data analysis on monitored signals in order to quantify the health of the operating system and self-diagnose any initiations of fault. Built-in control procedures can…

Signal Processing · Electrical Eng. & Systems 2020-06-18 G. Zhang , A. R. Singer , N. Vlahopoulos

Particle-in-cell codes are now standard tools for studying ultra-intense laser-plasma interactions. Motivated by direct laser acceleration of electrons in sub-critical plasmas, we examine temporal resolution requirements that must be…

With the next-generation Timepix3 hybrid pixel detector, new possibilities and challenges have arisen. The Timepix3 segments active sensor area of 1.98 $cm^2$ into a square matrix of 256 x 256 pixels. In each pixel, the Time of Arrival…

Instrumentation and Detectors · Physics 2019-10-30 Lukáš Meduna , Benedikt Bergmann , Petr Burian , Petr Mánek , Stanislav Pospíšil , Michal Suk

Machine-learning-based methods can be developed for the reconstruction of clusters in segmented detectors for high energy physics experiments. Convolutional neural networks with autoencoder architecture trained on labeled data from a…

Instrumentation and Detectors · Physics 2025-06-02 Kalina Dimitrova , Venelin Kozhuharov , Ruslan Nastaev , Peicho Petkov

Clustering is crucial for many computer vision applications such as robust tracking, object detection and segmentation. This work presents a real-time clustering technique that takes advantage of the unique properties of event-based vision…

Robotics · Computer Science 2018-07-11 Francisco Barranco , Cornelia Fermuller , Eduardo Ros

We present an efficient clustering algorithm applicable to one-dimensional data such as e.g. a series of timestamps. Given an expected frequency $\Delta T^{-1}$, we introduce an $\mathcal{O}(N)$-efficient method of characterizing $N$ events…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-04-07 Conrad M Albrecht , Marcus Freitag , Theodore G van Kessel , Siyuan Lu , Hendrik F Hamann

Learning-enabled controllers with stability certificate functions have demonstrated impressive empirical performance in addressing control problems in recent years. Nevertheless, directly deploying the neural controllers onto actual digital…

Optimization and Control · Mathematics 2025-07-22 Luan Yang , Jingdong Zhang , Qunxi Zhu , Wei Lin

High particle rates in current and future experiments make pile-up phenomena a critical issue for extracting useful information. In this context, timing can be important as the 4$^{\mathrm{th}}$ dimension parameter for triggering or event…

Instrumentation and Detectors · Physics 2025-12-05 A. Kallitsopoulou , I. Maniatis , I. Manthos , T. Papaevangelou , L. Sohl , A. Tsiamis , S. E. Tzamarias

We consider the task of classifying trajectories of boat activities as a proxy for assessing maritime threats. Previous approaches have considered entropy-based metrics for clustering boat activity into three broad categories: random walk,…

Machine Learning · Computer Science 2024-10-29 Dhanush Tella , Chandra Teja Tiriveedhi , Naphtali Rishe , Dan E. Tamir , Jonathan I. Tamir

Femtosecond electron beams with complex modulation play a crucial role in applications such as X-ray Free Electron Lasers (XFELs) and plasma wakefield accelerators. However, diagnostics for the electron beam current profile still face…

Accelerator Physics · Physics 2026-05-08 Zixiao Guo , Ke Feng , Zhiheng Lou , Guiyao Wang , Wentao Wang , Ruxin Li

In complex systems, events occur at irregular intervals that inherently encode the underlying dynamics of the system. Analyzing the temporal clustering of these events reveals critical insights into the non-random patterns and the temporal…

Data Analysis, Statistics and Probability · Physics 2026-03-20 Ambedkar Sanket Sukdeo , K. Shri Vignesh , Sachin S. Gunthe , T Narayan Rao , Amit Kumar Patra , R. I. Sujith

The latest generation of Timepix series hybrid pixel detectors enhance particle tracking with high spatial and temporal resolution. However, their high hit-rate capability poses challenges for data processing, particularly in multidetector…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-12-17 Tomáš Čelko , František Mráz , Benedikt Bergmann , Petr Mánek

The event-driven hybrid-pixel detector readout chip, Timepix3, has the ability to simultaneously measure the time of an event on the nanosecond timescale and the energy deposited in the sensor. However, the behaviour of the system when two…

Instrumentation and Detectors · Physics 2024-03-13 Hubertus Bromberger , David Pennicard , Rafael Ballabriga , Sebastian Trippel , Jochen Küpper

Contrary to other standard cameras, event cameras interpret the world in an entirely different manner; as a collection of asynchronous events. Despite event camera's unique data output, many event feature detection and tracking algorithms…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Sumin Hu , Yeeun Kim , Hyungtae Lim , Alex Junho Lee , Hyun Myung

Transition-Edge Sensors (TESs) are very effective photon-number-resolving (PNR) detectors that have enabled many photonic quantum technologies. However, their relatively slow thermal recovery time severely limits their operation rate in…

This work aims at the development of signal processing algorithms that can explore the potential of a PICOSEC-MicroMegas detector and offers the ability for online, precise timing. The PICOSEC-MicroMegas detector is a novel gaseous detector…

Instrumentation and Detectors · Physics 2021-12-30 Alexandra Kallitsopoulou
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