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As the development of atom scale devices transitions from novel, proof-of-concept demonstrations to state-of-the-art commercial applications, automated assembly of such devices must be implemented. Here we present an automation method for…

Dents on the aircraft skin are frequent and may easily go undetected during airworthiness checks, as their inspection process is tedious and extremely subject to human factors and environmental conditions. Nowadays, 3D scanning technologies…

Computer Vision and Pattern Recognition · Computer Science 2023-02-27 Pasquale Lafiosca , Ip-Shing Fan , Nicolas P. Avdelidis

Human actions that do not conform to usual behavior are considered as anomalous and such actors are called anomalous entities. Detection of anomalous entities using visual data is a challenging problem in computer vision. This paper…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Hamza Riaz , Muhammad Uzair , Habib Ullah

A major bottleneck of pedestrian detection lies on the sharp performance deterioration in the presence of small-size pedestrians that are relatively far from the camera. Motivated by the observation that pedestrians of disparate spatial…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Xiaowei Zhang , Li Cheng , Bo Li , Hai-Miao Hu

We use an extended laser Doppler technique to track optically the velocity of individual particles in a high Reynolds number turbulent flow. The particle sizes are of the order of the Kolmogorov scale and the time resolution, 30…

Fluid Dynamics · Physics 2009-11-13 Romain Volk , Nicolas Mordant , Gautier Verhille , Jean-François Pinton

We developed a computer vision-based methodology to achieve precise 3D segmentation and tracking of superbubbles within magnetohydrodynamic simulations of the supernova-driven interstellar medium. Leveraging advanced 3D transformer models,…

Astrophysics of Galaxies · Physics 2026-03-31 Jing-Wen Chen , Alex S. Hill , Anna Ordog , Rebecca A. Booth , Mohamed S. Shehata

Beam halo is an important factor in any high intensity accelerator. It can cause difficulties in the control of the beam, emittance growth, particle loss and even damage to the accelerator. It is therefore essential to understand the…

Accelerator Physics · Physics 2015-06-04 H. D. Zhang , R. B. Fiorito , A. G. Shkvarunets , R. A. Kishek , C. P. Welsch

Exact solutions are presented for a doubly-periodic array of steadily moving bubbles in a Hele-Shaw cell when surface tension is neglected. It is assumed that the bubbles either are symmetrical with respect to the channel centreline or have…

Fluid Dynamics · Physics 2010-09-30 Antônio M. P. Silva , Giovani L. Vasconcelos

The challenges of shape robust text detection lie in two aspects: 1) most existing quadrangular bounding box based detectors are difficult to locate texts with arbitrary shapes, which are hard to be enclosed perfectly in a rectangle; 2)…

Computer Vision and Pattern Recognition · Computer Science 2018-06-08 Xiang Li , Wenhai Wang , Wenbo Hou , Ruo-Ze Liu , Tong Lu , Jian Yang

Artificial intelligence is increasingly integrated into radiotherapy workflows, yet such pipelines remain vulnerable to out-of-distribution image data that may introduce unexpected behavior in clinical tasks. Deep learning-based anomaly…

Understanding the shell rheology of ultrasound contrast agent microbubbles is vital for anticipating their bioeffects in clinical practice. Past studies using sophisticated acoustic and optical techniques have made enormous progress in this…

Fluid Dynamics · Physics 2023-08-14 Marco Cattaneo , Outi Supponen

We develop a reliable, fully automatic method for the detection of coronal holes, that provides consistent full-disk segmentation maps over the full solar cycle and can perform in real-time. We use a convolutional neural network to identify…

Solar and Stellar Astrophysics · Physics 2021-08-09 R. Jarolim , A. M. Veronig , S. Hofmeister , S. G. Heinemann , M. Temmer , T. Podladchikova , K. Dissauer

We present the result of a study on the expansion properties and internal kinematics of round/elliptical planetary nebulae of the Milky Way disk, the halo, and of the globular cluster M15. The purpose of this study is to considerably…

Solar and Stellar Astrophysics · Physics 2014-04-03 D. Schoenberner , R. Jacob , H. Lehmann , G. Hildebrandt , M. Steffen , A. Zwanzig , C. Sandin , R. L. M. Corradi

Anomaly Detection is a relevant problem in numerous real-world applications, especially when dealing with images. However, little attention has been paid to the issue of changes over time in the input data distribution, which may cause a…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Nikola Bugarin , Jovana Bugaric , Manuel Barusco , Davide Dalle Pezze , Gian Antonio Susto

Cognitive radio is a potential solution to meet the upcoming spectrum crunch issue. In a cognitive radio, spectrum holes can be identified using spectrum sensing techniques. A high resolution spectrum hole detection can ensure even the…

Signal Processing · Electrical Eng. & Systems 2022-07-05 Sushmitha Sajeevu , Sakthivel Vellaisamy

This note describes a method for detecting dense random texture using fully connected points sampled on image edges. An edge image is randomly sampled with points, the standard L2 distance is calculated between all connected points in a…

Computer Vision and Pattern Recognition · Computer Science 2023-10-09 Soeren Molander

Recall one time when we were in an unfamiliar mall. We might mistakenly think that there exists or does not exist a piece of glass in front of us. Such mistakes will remind us to walk more safely and freely at the same or a similar place…

Computer Vision and Pattern Recognition · Computer Science 2023-04-24 Chengyu Zheng , Peng Li , Xiao-Ping Zhang , Xuequan Lu , Mingqiang Wei

Edge detection is widely and fundamental feature used in various algorithms in computer vision to determine the edges in an image. The edge detection algorithm is used to determine the edges in an image which are further used by various…

Computer Vision and Pattern Recognition · Computer Science 2019-10-02 Victor Bogdan , Cosmin Bonchiş , Ciprian Orhei

Pixel detectors currently in use by high energy physics experiments such as ATLAS, CMS, LHCb, etc., are critical systems for tagging $B$ hadrons within particle jets. However, the performance of standard tagging algorithms begins to fall in…

High Energy Physics - Experiment · Physics 2017-06-16 B. Todd Huffman , Thomas Russell , Jeff Tseng

Pulmonary embolisms (PE) are known to be one of the leading causes for cardiac-related mortality. Due to inherent variabilities in how PE manifests and the cumbersome nature of manual diagnosis, there is growing interest in leveraging AI…

Image and Video Processing · Electrical Eng. & Systems 2019-10-23 Deepta Rajan , David Beymer , Shafiqul Abedin , Ehsan Dehghan
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