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In this paper we propose a modified cross correlation method to align images from the same class in single-particle electron microscopy of highly non-spherical structures. In this new method, First we coarsely align projection images, and…

Quantitative Methods · Quantitative Biology 2018-12-26 Wooram Park , Gregory S. Chirikjian

Quasars have been proposed as a new class of standard candles analogous to Supernovae, as their large redshift range and high luminosities make them excellent candidates. Reverberation mapping (RM) method enables to estimate the distance to…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-09 Mary Loli Martínez-Aldama , Bożena Czerny , Damian Kawka , Vladimir Karas , Swayamtrupta Panda , Michal Zajaček , Piotr T. Życki

In circular particle accelerators, storage rings, or colliders, mitigating beam losses is critical to ensuring optimal performance, particularly for rings that include superconducting magnets. A thorough understanding of beam-halo dynamics…

Accelerator Physics · Physics 2024-10-15 C. E. Montanari , R. B. Appleby , A. Bazzani , M. Giovannozzi , P. Hermes , A. Poyet , S. Redaelli , G. Sterbini

In this work we demonstrate an FPGA-based coherent optical frequency domain reflectometry setup for cable monitoring. Using coherent detection for averaging and narrowband filtering, we significantly improve the signal-to-noise ratio (SNR)…

Semi-autonomous prosthesis controllers based on computer vision improve performance while reducing cognitive effort. However, controllers relying on full-depth data face challenges in being deployed as embedded prosthesis controllers due to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Miguel Nobre Castro , Strahinja Dosen

The labeling cost of large number of bounding boxes is one of the main challenges for training modern object detectors. To reduce the dependence on expensive bounding box annotations, we propose a new semi-supervised object detection…

Computer Vision and Pattern Recognition · Computer Science 2018-12-04 JIyang Gao , Jiang Wang , Shengyang Dai , Li-Jia Li , Ram Nevatia

Segment anything model (SAM) has emerged as the leading approach for zero-shot learning in segmentation tasks, offering the advantage of avoiding pixel-wise annotations. It is particularly appealing in medical image segmentation, where the…

Image and Video Processing · Electrical Eng. & Systems 2023-12-29 Ziyi Huang , Hongshan Liu , Haofeng Zhang , Xueshen Li , Haozhe Liu , Fuyong Xing , Andrew Laine , Elsa Angelini , Christine Hendon , Yu Gan

The high-volume manufacturing of the next generation of semiconductor devices requires advances in measurement signal analysis. Many in the semiconductor manufacturing community have reservations about the adoption of deep learning; they…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Inimfon I. Akpabio , Serap A. Savari

Nonreciprocal devices - in which light is transmitted with different efficiencies along opposite directions - are key technologies for modern photonic applications, yet their compact and miniaturized implementation remains an open…

Cross-domain sequential recommendation (CDSR) aims to uncover and transfer users' sequential preferences across multiple recommendation domains. While significant endeavors have been made, they primarily concentrated on developing advanced…

Information Retrieval · Computer Science 2024-08-22 Mingjia Yin , Hao Wang , Wei Guo , Yong Liu , Zhi Li , Sirui Zhao , Zhen Wang , Defu Lian , Enhong Chen

Sensor placement and feature selection are critical steps in engineering, modeling, and data science that share a common mathematical theme: the selected measurements should enable solution of an inverse problem. Most real-world systems of…

Optimization and Control · Mathematics 2022-08-24 Samuel E. Otto , Clarence W. Rowley

Purpose: In many clinical MRI scenarios, existing imaging information can be used to significantly shorten acquisition time or to improve Signal to Noise Ratio (SNR). In this paper the authors present a framework for fast MRI by exploiting…

Medical Physics · Physics 2017-08-28 Lior Weizman , Yonina C. Eldar , Dafna Ben-Basaht

The key to optimizing spatial resolution in a state-of-the-art scanning transmission electron microscope is the ability to precisely measure and correct for electron optical aberrations of the probe-forming lenses. Several diagnostic…

State-of-the-art approaches for the semantic labeling of LiDAR point clouds heavily rely on the use of deep Convolutional Neural Networks (CNNs). However, transferring network architectures across different LiDAR sensor types represents a…

Computer Vision and Pattern Recognition · Computer Science 2019-07-05 Florian Piewak , Peter Pinggera , Marius Zöllner

Surface defects on Printed Circuit Boards (PCBs) directly compromise product reliability and safety. However, achieving high-precision detection is challenging because PCB defects are typically characterized by tiny sizes, high texture…

Computer Vision and Pattern Recognition · Computer Science 2026-01-19 Meng Han

(abridged) We study the accuracy of various approximations to cosmic shear and weak galaxy-galaxy lensing and investigate effects of Born corrections and lens-lens coupling. We use ray-tracing through the Millennium Simulation to calculate…

Astrophysics · Physics 2015-05-13 S. Hilbert , J. Hartlap , S. D. M. White , P. Schneider

Linear Collider Alignment and Survey (LiCAS) R&D group is proposing a novel automated metrology instrument dedicated to align and monitor the mechanical stability of a future linear high energy e+e- collider. LiCAS uses Laser Straightness…

Instrumentation and Detectors · Physics 2009-02-16 G. Grzelak , A. Reichold , J. Dale , M. Dawson , J. Green , Y. Han , M. Jones , G. Moss , B. Ottewell , R. Wastie , D. Kämptner , J. Prenting , M. Schlösser

Tilt-series alignment is crucial to obtaining high-resolution reconstructions in cryo-electron tomography. Beam-induced local deformation of the sample is hard to estimate from the low-contrast sample alone, and often requires fiducial gold…

Image and Video Processing · Electrical Eng. & Systems 2022-01-24 Poulami Somanya Ganguly , Felix Lucka , Holger Kohr , Erik Franken , Hermen Jan Hupkes , K Joost Batenburg

It is well known that the minimax rates of convergence of nonparametric density and regression function estimation of a random variable measured with error is much slower than the rate in the error free case. Surprisingly, we show that if…

Statistics Theory · Mathematics 2019-08-21 Fei Jiang , Yanyuan Ma , Raymond J. Carroll

With continuous progression of Moore's Law, integrated circuit (IC) device complexity is also increasing. Scanning Electron Microscope (SEM) image based extensive defect inspection and accurate metrology extraction are two main challenges…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Vic De Ridder , Bappaditya Dey , Sandip Halder , Bartel Van Waeyenberge
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