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Abnormal event detection or anomaly detection in surveillance videos is currently a challenge because of the diversity of possible events. Due to the lack of anomalous events at training time, anomaly detection requires the design of…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Darshan Venkatrayappa

Cerebral aneurysms and arteriovenous malformations are life-threatening hemodynamic pathologies of the brain. While surgical intervention is often essential to prevent fatal outcomes, it carries significant risks both during the procedure…

Machine Learning · Computer Science 2026-03-17 Irem Topal , Alexander Cherevko , Yuri Bugay , Maxim Shishlenin , Jean Barbier , Deniz Eroglu , Édgar Roldán , Roman Belousov

Adopting Convolutional Neural Networks (CNNs) in the daily routine of primary diagnosis requires not only near-perfect precision, but also a sufficient degree of generalization to data acquisition shifts and transparency. Existing CNN…

Computer Vision and Pattern Recognition · Computer Science 2023-06-22 Mara Graziani , Sebastian Otalora , Stephane Marchand-Maillet , Henning Muller , Vincent Andrearczyk

A sensor network is considered where at each sensor a sequence of random variables is observed. At each time step, a processed version of the observations is transmitted from the sensors to a common node called the fusion center. At some…

Statistics Theory · Mathematics 2023-07-19 Taposh Banerjee , Venugopal V. Veeravalli

Central venous catheters (CVCs) are commonly used in critical care settings for monitoring body functions and administering medications. They are often described in radiology reports by referring to their presence, identity and placement.…

Image and Video Processing · Electrical Eng. & Systems 2019-07-26 Vaishnavi Subramanian , Hongzhi Wang , Joy T. Wu , Ken C. L. Wong , Arjun Sharma , Tanveer Syeda-Mahmood

Anomaly detection (AD) in a surveillance scenario is an emerging and challenging field of research. For autonomous vehicles like drones or cars, it is immensely important to distinguish between normal and abnormal states in real-time.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Sayeed Shafayet Chowdhury , Kazi Mejbaul Islam , Rouhan Noor

Diffuse correlation spectroscopy (DCS) is an emerging noninvasive technique that measures the tissue blood flow, by using near-infrared coherent point-source illumination to detect spectral changes. While machine learning has demonstrated…

Machine Learning · Computer Science 2024-02-02 Xi Chen , Xingda Li

The notion of synthetic molecular communication (MC) refers to the transmission of information via signaling molecules and is foreseen to enable innovative medical applications in the human cardiovascular system (CVS). Crucially, the design…

Quantitative Methods · Quantitative Biology 2025-12-03 Timo Jakumeit , Lukas Brand , Jens Kirchner , Robert Schober , Sebastian Lotter

Anomaly detection in X-ray images has been an active and lasting research area in the last decades, especially in the domain of medical X-ray images. For this work, we created a real-world labeled anomaly dataset, consisting of 16-bit X-ray…

Computer Vision and Pattern Recognition · Computer Science 2022-02-16 Simon B. Jensen , Thomas B. Moeslund , Søren J. Andreasen

Anomaly detection is an important step in the management and monitoring of data centers and cloud computing platforms. The ability to detect anomalous virtual machines before real failures occur results in reduced downtime while operations…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-10-08 Roman Nikiforov

Nanomechanical sensors and quantum nanosensors are two rapidly developing technologies that have diverse interdisciplinary applications in biological and chemical analysis and microscopy. For example, nanomechanical sensors based upon…

Motivated by classical communications engineering, early works in molecular communication (MC) largely adopted established modeling and signal processing concepts from wireless electromagnetic communication systems. In the context of the…

Information Theory · Computer Science 2026-04-03 Timo Jakumeit , Lukas Brand , Josep M. Jornet , Robert Schober , Maximilian Schäfer , Sebastian Lotter

Cyber-physical control systems are critical infrastructures designed around highly responsive feedback loops that are measured and manipulated by hundreds of sensors and controllers. Anomalous data, such as from cyber-attacks, greatly risk…

Quantum Physics · Physics 2024-09-10 Tyler Cultice , Md. Saif Hassan Onim , Annarita Giani , Himanshu Thapliyal

Image anomaly detection consists in finding images with anomalous, unusual patterns with respect to a set of normal data. Anomaly detection can be applied to several fields and has numerous practical applications, e.g. in industrial…

Computer Vision and Pattern Recognition · Computer Science 2019-09-09 Claudio Piciarelli , Pankaj Mishra , Gian Luca Foresti

Accurately segmenting blood vessels in retinal fundus images is crucial in the early screening, diagnosing, and evaluating some ocular diseases, yet it poses a nontrivial uncertainty for the segmentation task due to various factors such as…

Image and Video Processing · Electrical Eng. & Systems 2023-06-29 Yuanyuan Peng , Pengpeng Luan , Zixu Zhang

An artificial neural network (ANN) is investigated as a tool for estimating rate coefficients for the collisional excitation of molecules. The performance of such a tool can be evaluated by testing it on a dataset of collisionally-induced…

Instrumentation and Methods for Astrophysics · Physics 2014-11-20 David A. Neufeld

We address the problem of anomaly detection, that is, detecting anomalous events in a video sequence. Anomaly detection methods based on convolutional neural networks (CNNs) typically leverage proxy tasks, such as reconstructing input video…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Hyunjong Park , Jongyoun Noh , Bumsub Ham

Purpose: Most studies evaluating artificial intelligence (AI) models that detect abnormalities in neuroimaging are either tested on unrepresentative patient cohorts or are insufficiently well-validated, leading to poor generalisability to…

Image and Video Processing · Electrical Eng. & Systems 2024-05-10 Siddharth Agarwal , David A. Wood , Mariusz Grzeda , Chandhini Suresh , Munaib Din , James Cole , Marc Modat , Thomas C Booth

Brain shift makes the pre-operative MRI navigation highly inaccurate hence the intraoperative modalities are adopted in surgical theatre. Due to the excellent economic and portability merits, the Ultrasound imaging is used at our…

Image and Video Processing · Electrical Eng. & Systems 2020-11-17 Mou-Cheng Xu

Convolutional Neural Networks (CNNs) have shown to be powerful medical image segmentation models. In this study, we address some of the main unresolved issues regarding these models. Specifically, training of these models on small medical…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Davood Karimi , Ali Gholipour