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Local feature matching aims at finding correspondences between a pair of images. Although current detector-free methods leverage Transformer architecture to obtain an impressive performance, few works consider maintaining local consistency.…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Jiahuan Yu , Jiahao Chang , Jianfeng He , Tianzhu Zhang , Feng Wu

We propose an efficient solution to the state estimation problem in multi-scan multi-sensor multiple extended target sensing scenarios. We first model the measurement process by a doubly inhomogeneous-generalized shot noise Cox process and…

信号处理 · 电气工程与系统科学 2023-10-16 Martin V. Vejling , Christophe A. N. Biscio , Petar Popovski

Vision transformers (ViTs) have recently been used for visual matching beyond object detection and segmentation. However, the original grid dividing strategy of ViTs neglects the spatial information of the keypoints, limiting the…

计算机视觉与模式识别 · 计算机科学 2023-12-15 Jinpei Guo , Shaofeng Zhang , Runzhong Wang , Chang Liu , Junchi Yan

Time series forecasts of different temporal granularity are widely used in real-world applications, e.g., sales prediction in days and weeks for making different inventory plans. However, these tasks are usually solved separately without…

机器学习 · 计算机科学 2024-06-21 Fan Zhou , Chen Pan , Lintao Ma , Yu Liu , James Zhang , Jun Zhou , Hongyuan Mei , Weitao Lin , Zi Zhuang , Wenxin Ning , Yunhua Hu , Siqiao Xue

In fMRI, capturing brain activation during a task is dependent on how quickly k-space arrays are obtained. Acquiring full k-space arrays, which are reconstructed into images using the inverse Fourier transform (IFT), that make up volume…

应用统计 · 统计学 2024-05-27 Chase J Sakitis , Daniel B Rowe

Distinguishing between the instantaneous and delayed scatterers in synthetic aperture radar (SAR) images is important for target identification and characterization. To perform this task, one can use the autocorrelation analysis of…

图像与视频处理 · 电气工程与系统科学 2019-09-24 Mikhail Gilman , Semyon Tsynkov

In IoT based distributed network of cameras, real-time multi-camera video analytics is challenged by high bandwidth demands and redundant visual data, creating a fundamental tension where reducing data saves network overhead but can degrade…

计算机视觉与模式识别 · 计算机科学 2025-08-14 Ragini Gupta , Lingzhi Zhao , Jiaxi Li , Volodymyr Vakhniuk , Claudiu Danilov , Josh Eckhardt , Keyshla Bernard , Klara Nahrstedt

This paper investigates the joint optimization of trajectory planning and resource allocation for a high-altitude platform stations synthetic aperture radar (HAPs-SAR) system. To support real-time sensing and conserve the limited energy…

系统与控制 · 电气工程与系统科学 2025-07-01 Bang Huang , Kihong Park , Xiaowei Pang , Mohamed-Slim Alouini

Advancements in Sonar image capture have enabled researchers to apply sophisticated object identification algorithms in order to locate targets of interest in images such as mines. Despite progress in this field, modern sonar automatic…

计算机视觉与模式识别 · 计算机科学 2016-01-05 John McKay , Raghu Raj , Vishal Monga , Jason Isaacs

Robust tracking of a target in a clutter environment is an important and challenging task. In recent years, the nearest neighbor methods and probabilistic data association filters were proposed. However, the performance of these methods…

机器学习 · 计算机科学 2020-12-18 Bahman Moraffah , Christ Richmond , Raha Moraffah , Antonia Papandreou-Suppappola

This paper studies how to introduce viewpoint-invariant feature representations that can help action recognition and detection. Although we have witnessed great progress of action recognition in the past decade, it remains challenging yet…

计算机视觉与模式识别 · 计算机科学 2020-12-07 Junwei Liang , Liangliang Cao , Xuehan Xiong , Ting Yu , Alexander Hauptmann

Recent high-contrast imaging surveys, looking for planets in young, nearby systems showed evidence of a small number of giant planets at relatively large separation beyond typically 20 au where those surveys are the most sensitive. Access…

Purpose: To develop a scan-specific model that estimates and corrects k-space errors made when reconstructing accelerated Magnetic Resonance Imaging (MRI) data. Methods: Scan-Specific Artifact Reduction in k-space (SPARK) trains a…

信号处理 · 电气工程与系统科学 2022-04-29 Yamin Arefeen , Onur Beker , Jaejin Cho , Heng Yu , Elfar Adalsteinsson , Berkin Bilgic

In this paper, we introduce an efficient sparse Gaussian process (E-SGP) for the surrogate modelling of fluid mechanics. This novel Bayesian machine learning algorithm allows efficient model training using databases of different structures.…

机器学习 · 计算机科学 2023-12-18 Yu Duan , Matthew Eaton , Michael Bluck

Synthetic aperture radar (SAR) images contain not only targets of interest but also complex background clutter, including terrain reflections and speckle noise. In many cases, such clutter exhibits intensity and patterns that resemble…

计算机视觉与模式识别 · 计算机科学 2025-09-12 Oh-Tae Jang , Min-Gon Cho , Kyung-Tae Kim

This work studies the problem of radar detection of correlated gamma-fluctuating targets in the presence of clutter described by compound models with correlated speckle. If the correlation is not accounted for in a radar model, the required…

信号处理 · 电气工程与系统科学 2021-06-17 Josef Zuk

In this paper, we propose a new solution for the detection problem of a coherent target in heterogeneous environments. Specifically, we first assume that clutter returns from different range bins share the same covariance structure but…

信号处理 · 电气工程与系统科学 2022-10-04 Angelo Coluccia , Danilo Orlando , Giuseppe Ricci

In resource-constrained environments, one can employ spatial multiplexing cameras to acquire a small number of measurements of a scene, and perform effective reconstruction or high-level inference using purely data-driven neural networks.…

计算机视觉与模式识别 · 计算机科学 2018-09-11 Suhas Lohit , Rajhans Singh , Kuldeep Kulkarni , Pavan Turaga

Static timing analysis (STA) is crucial for Electronic Design Automation (EDA) flows but remains a computational bottleneck. While existing GPU-based STA engines are faster than CPU, they suffer from inefficiencies, particularly intra-warp…

分布式、并行与集群计算 · 计算机科学 2026-03-31 En-Ming Huang , Shih-Hao Hung

Persistent scatterer interferometry and Synthetic Aperture Radar (SAR) Tomography are powerful tools for the detection and time monitoring of persistent scatterers. They have been proven to be effective in urban scenarios, especially for…

信号处理 · 电气工程与系统科学 2026-02-05 Pia Addabbo , Diego Reale , Antonio Pauciullo , Gianfranco Fornaro , Danilo Orlando