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A substantial body of research has focused on developing systems that assist medical professionals during labor-intensive early screening processes, many based on convolutional deep-learning architectures. Recently, multiple studies…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Tristan Piater , Niklas Penzel , Gideon Stein , Joachim Denzler

Foresighted robot navigation in dynamic indoor environments with cost-efficient hardware necessitates the use of a lightweight yet dependable controller. So inferring the scene dynamics from sensor readings without explicit object tracking…

Robotics · Computer Science 2024-02-29 Jorge de Heuvel , Xiangyu Zeng , Weixian Shi , Tharun Sethuraman , Maren Bennewitz

We report an experimental demonstration of a nonclassical imaging mechanism with super-resolving power beyond the Rayleigh limit. When the classical image is completely blurred out due to the use of a small imaging lens, by taking advantage…

Optics · Physics 2016-11-03 Jane Sprigg , Tao Peng , Yanhua Shih

A key human ability is to decompose a scene into distinct objects and use their relationships to understand the environment. Object-centric learning aims to mimic this process in an unsupervised manner. Recently, the slot attention-based…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Pinzhuo Tian , Shengjie Yang , Hang Yu , Alex C. Kot

An accurate detection and tracking of devices such as guiding catheters in live X-ray image acquisitions is an essential prerequisite for endovascular cardiac interventions. This information is leveraged for procedural guidance, e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-03 Saahil Islam , Venkatesh N. Murthy , Dominik Neumann , Badhan Kumar Das , Puneet Sharma , Andreas Maier , Dorin Comaniciu , Florin C. Ghesu

A new way to understand why some inhomogeneous dielectric medium can be used for confining the light wave has been given by using non-Euclidean transformation optics. We show that special inhomogeneous dielectric medium, which corresponds…

Optics · Physics 2013-09-25 F. Sun

Most existing object detectors suffer from class imbalance problems that hinder balanced performance. In particular, anchor free object detectors have to solve the background imbalance problem due to detection in a per-pixel prediction…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Hopyong Gil , Sangwoo Park , Yusang Park , Wongoo Han , Juyean Hong , Juneyoung Jung

Typically, an ultrasound flow imaging system employs the conventional delay and sum (DAS) beamformer due to its inherent low complexity. But the conventional DAS technique offers poor contrast, low imaging resolution, and limited…

Signal Processing · Electrical Eng. & Systems 2022-06-24 A. N. Madhavanunni , Mahesh Raveendranatha Panicker

Given an ODE and its perturbation, the Alekseev formula expresses the solutions of the latter in terms related to the former. By exploiting this formula and a new concentration inequality for martingale-differences, we develop a novel…

Optimization and Control · Mathematics 2019-04-02 Gugan Thoppe , Vivek S. Borkar

This paper presents a new spatial-temporal nonlocal traffic flow model formulated to overcome the boundedness limitations inherent in classical local formulations. The model introduces an adaptive kernel that captures both spatial and…

Numerical Analysis · Mathematics 2026-03-30 Animesh Biswas , Archie Huang , Shaurya Agarwal , Christopher Housholder

Scattering off the edge of a composite particle or finite-range interaction can precede that off its center. An effective theory treatment with pointlike particles and contact interactions must find that the scattered experimental wave is…

High Energy Physics - Phenomenology · Physics 2021-06-07 Felipe J. Llanes-Estrada , Raul Roldan-Gonzalez

The scattering of waves in a complex medium is perturbed by polarizability changes or motion of embedded targets. These perturbations could serve as perfectly non-invasive guidestars for focusing on the targets. In this Letter, we…

Optics · Physics 2024-01-30 Jérôme Sol , Luc Le Magoarou , Philipp del Hougne

We theoretically study the effect of pulse trapping inside one-dimensional photonic crystal with relaxing cubic nonlinearity. We analyze dependence of light localization on pulse intensity and explain its physical mechanism as connected…

Optics · Physics 2015-03-17 Denis Novitsky

The LSST survey will provide unprecedented statistical power for measurements of dark energy. Consequently, controlling systematic uncertainties is becoming more important than ever. The LSST observing strategy will affect the statistical…

In this paper, a method for increasing the temporal resolution of a temporal imaging system has been developed. Analogously to the conventional spatial imaging systems in which resolution limit is due to the finite aperture of the lens, in…

Optics · Physics 2020-04-22 Farshid Shateri , Mehdi Hosseinalizadeh , Zahra Kavehvash

Lesion detection from computed tomography (CT) scans is challenging compared to natural object detection because of two major reasons: small lesion size and small inter-class variation. Firstly, the lesions usually only occupy a small…

Computer Vision and Pattern Recognition · Computer Science 2019-07-10 Qingyi Tao , Zongyuan Ge , Jianfei Cai , Jianxiong Yin , Simon See

Local simultaneity conventions are mathematically represented by connections on the bundle of timelike curves that defines the frame. Those simultaneity conventions having an holonomy proportional to the Riemann tensor have a special…

General Relativity and Quantum Cosmology · Physics 2007-05-23 E. Minguzzi

High level understanding of sequential visual input is important for safe and stable autonomy, especially in localization and object detection. While traditional object classification and tracking approaches are specifically designed to…

Computer Vision and Pattern Recognition · Computer Science 2017-07-25 Mo Shan , Nikolay Atanasov

In the exciton-polariton system, a linear dispersive photon field is coupled to a nonlinear exciton field. Short-time analysis of the lossless system shows that, when the photon field is excited, the time required for that field to exhibit…

Analysis of PDEs · Mathematics 2017-10-25 Cristi D. Guevara , Stephen P. Shipman

Object detection in natural images has achieved remarkable results over the years. However, a similar progress has not yet been observed in aerial object detection due to several challenges, such as high resolution images, instances scale…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Dmitry Demidov , Rushali Grandhe , Salem AlMarri
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