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Large displacement optical flow is an integral part of many computer vision tasks. Variational optical flow techniques based on a coarse-to-fine scheme interpolate sparse matches and locally optimize an energy model conditioned on colour,…

计算机视觉与模式识别 · 计算机科学 2022-06-28 Qiao Chen , Charalambos Poullis

Numerical integration methods are central to the study of self-gravitating systems, particularly those comprised of many bodies or otherwise beyond the reach of analytical methods. Predictor-corrector schemes, both multi-step methods and…

天体物理仪器与方法 · 物理学 2025-01-24 Alexander J. Dittmann

Long-distance measurements (10 m - 1000 m) with an accuracy of 10-7 is a challenge for many applications. We show that it is achievable with Frequency Shifted Feedback (FSF) laser interferometry technique, provided that the determination of…

光学 · 物理学 2015-06-05 Jean-Paul Pique

High-resolution multi-modality information acquired by vision-based tactile sensors can support more dexterous manipulations for robot fingers. Optical flow is low-level information directly obtained by vision-based tactile sensors, which…

计算机视觉与模式识别 · 计算机科学 2023-09-14 Zhiyuan Zhang , Hua Yang , Zhouping Yin

This paper investigates the sensing of user's uplink channel and location in terahertz extra-large reconfigurable intelligent surface (XL-RIS) systems, where the unique hybrid far-near field effect and the beam squint effect caused by the…

信号处理 · 电气工程与系统科学 2023-06-27 Zhuoran Li , Zhen Gao , Tuan Li

Compressive-sensing-based uncertainty quantification methods have become a pow- erful tool for problems with limited data. In this work, we use the sliced inverse regression (SIR) method to provide an initial guess for the alternating…

数值分析 · 数学 2018-09-11 Xiu Yang , Weixuan Li , Alexandre Tartakovsky

We demonstrate that a triangular cavity can operate as an efficient discriminator for Hermite-Gaussian optical modes. The process is applied to distinct fields produced by a Spatial Light Modulator, decomposing the generated paraxial field…

The use of structured light beams to detect the velocity of targets moving perpendicularly to the beam's propagation axis opens new avenues for remote sensing of moving objects. However, determining the direction of motion is still a…

Underwater salient instance segmentation (USIS) is crucial for marine robotic systems, as it enables both underwater salient object detection and instance-level mask prediction for visual scene understanding. Compared with its terrestrial…

计算机视觉与模式识别 · 计算机科学 2026-03-18 Lin Hong , Xiangtong Yao , Mürüvvet Bozkurt , Xin Wang , Fumin Zhang

Higher-order exceptional points in non-Hermitian systems have recently been used as a tool to engineer high-sensitivity devices, attracting tremendous attention from multidisciplinary fields. Here, we present a simple yet effective scheme…

光学 · 物理学 2022-08-31 Ambaresh Sahoo , Amarendra K. Sarma

This paper introduces an online approach for identifying time-varying subspaces defined by linear dynamical systems. The approach of representing linear systems by non-parametric subspace models has received significant interest in the…

系统与控制 · 电气工程与系统科学 2025-12-01 András Sasfi , Alberto Padoan , Ivan Markovsky , Florian Dörfler

This paper presents the theory and key experimental findings for an investigation into the generation of bimodal resonance (frequency splitting) phenomena in mutually over-coupled inductive sensors, and its exploitation to evaluate relative…

The ability to estimate 3D movements of users over edge computing-enabled networks, such as 5G/6G networks, is a key enabler for the new era of extended reality (XR) and Metaverse applications. Recent advancements in deep learning have…

信号处理 · 电气工程与系统科学 2024-09-04 Nguyen Quang Hieu , Dinh Thai Hoang , Diep N. Nguyen

We put forth a mechanism for enhancing the interlayer transport in cuprate superconductors, by optically driving plasmonic excitations along the $c$ axis with a frequency that is blue-detuned from the Higgs frequency. The plasmonic…

超导电性 · 物理学 2021-06-07 Guido Homann , Jayson G. Cosme , Junichi Okamoto , Ludwig Mathey

We show that one can determine both parameters of a displacement acting on an oscillator with an accuracy which scales inversely with the square root of the number of photons in the oscillator. Our results are obtained by using a grid state…

量子物理 · 物理学 2017-01-11 Kasper Duivenvoorden , Barbara M. Terhal , Daniel Weigand

We propose a method to build an astronomical interferometer using continuous variable quantum teleportation to overcome the transmission loss between distant telescopes. The scheme relies on two-mode squeezed states shared by distant…

量子物理 · 物理学 2025-09-03 Yunkai Wang , Yujie Zhang , Virginia O. Lorenz

The distance between two point light sources is difficult to estimate if that distance is below the diffraction (Rayleigh's) resolution limit of the imaging device. A recently proposed technique enhances the precision of this estimation by…

光学 · 物理学 2017-12-27 Fan Yang , Ranjith Nair , Mankei Tsang , Christoph Simon , Alexander I. Lvovsky

It has been shown beneficial for many types of data which present an underlying hierarchical structure to be embedded in hyperbolic spaces. Consequently, many tools of machine learning were extended to such spaces, but only few…

机器学习 · 计算机科学 2023-06-27 Clément Bonet , Laetitia Chapel , Lucas Drumetz , Nicolas Courty

A distributed inference scheme which uses bounded transmission functions over a Gaussian multiple access channel is considered. When the sensor measurements are decreasingly reliable as a function of the sensor index, the conditions on the…

分布式、并行与集群计算 · 计算机科学 2015-06-16 Sivaraman Dasarathan , Cihan Tepedelenlioglu

Moving object detection (MOD) in remote sensing is significantly challenged by low resolution, extremely small object sizes, and complex noise interference. Current deep learning-based MOD methods rely on probability density estimation,…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Jinyue Zhang , Xiangrong Zhang , Zhongjian Huang , Tianyang Zhang , Yifei Jiang , Licheng Jiao