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Radar target detection in the presence of a mixture of non-Gaussian clutter and white thermal noise is a challenging problem. This paper proposes a Rectified Flow Matching-based method for radar detection, termed D-RFM. Unlike existing…

信号处理 · 电气工程与系统科学 2026-03-20 P. Meena , Y. A. Rouzoumka , J. Pinsolle , C. Ren , M. N. El Korso , J. -P. Ovarlez

Synthetic Aperture Radar (SAR) is the main instrument utilized for the detection of oil slicks on the ocean surface. In SAR images, some areas affected by ocean phenomena, such as rain cells, upwellings, and internal waves, or discharge…

计算机视觉与模式识别 · 计算机科学 2022-04-21 Xiaojian Liu , Yansheng Li

Groundwater depletion impacts the sustainability of numerous groundwater-dependent vegetation (GDV) globally, placing significant stress on their capacity to provide environmental and ecological support for flora, fauna, and anthropic…

应用统计 · 统计学 2020-09-08 Mason Terrett , Daniel Fryer , Tanya Doody , Hien Nguyen , Pascal Castellazzi

In this paper, we propose a novel method for separately estimating spectral distributions from images captured by a typical RGB camera. The proposed method allows us to separately estimate a spectral distribution of illumination,…

图像与视频处理 · 电气工程与系统科学 2021-06-04 Yuma Kinoshita , Hitoshi Kiya

A numerical method for processing the data of ground penetrating radars for a piece-wise continuous layered medium is proposed. The method combines the layer stripping technique with numerical continuation of data into the complex…

数值分析 · 数学 2026-03-17 Ruben Airapetyan

Terrain elevation modeling for off-road navigation aims to accurately estimate changes in terrain geometry in real-time and quantify the corresponding uncertainties. Having precise estimations and uncertainties plays a crucial role in…

机器人学 · 计算机科学 2025-08-11 Sanghun Jung , Daehoon Gwak , Byron Boots , James Hays

The accuracy of the object detection model depends on whether the anchor boxes effectively trained. Because of the small number of GT boxes or object target is invariant in the training phase, cannot effectively train anchor boxes.…

计算机视觉与模式识别 · 计算机科学 2019-03-06 Wei Jiang , Na Ying

Scene context is a powerful constraint on the geometry of objects within the scene in cases, such as surveillance, where the camera geometry is unknown and image quality may be poor. In this paper, we describe a method for estimating the…

计算机视觉与模式识别 · 计算机科学 2019-12-11 Pengfei Li , Weichao Qiu , Michael Peven , Gregory D. Hager , Alan L. Yuille

Simulating realistic radar data has the potential to significantly accelerate the development of data-driven approaches to radar processing. However, it is fraught with difficulty due to the notoriously complex image formation process. Here…

机器人学 · 计算机科学 2020-12-01 Rob Weston , Oiwi Parker Jones , Ingmar Posner

This article proposes novel sparsity-aware space-time adaptive processing (SA-STAP) algorithms with $l_1$-norm regularization for airborne phased-array radar applications. The proposed SA-STAP algorithms suppose that a number of samples of…

信息论 · 计算机科学 2013-04-16 Z. Yang , R. C. de Lamare

In urban areas, the quality of global navigation satellite system (GNSS) signals deteriorates, leading to reduced positioning accuracy. To address this issue, 3D-mapping-aided (3DMA) techniques, such as shadow matching and zonotope shadow…

信号处理 · 电气工程与系统科学 2025-02-18 Sanghyun Kim , Jiwon Seo

Convolutional neural networks (CNNs) have been applied to learn spatial features for high-resolution (HR) synthetic aperture radar (SAR) image classification. However, there has been little work on integrating the unique statistical…

计算机视觉与模式识别 · 计算机科学 2022-05-04 Wenkai Liang , Yan Wu , Ming Li , Peng Zhang , Yice Cao , Xin Hu

Modern cameras are equipped with a wide array of sensors that enable recording the geospatial context of an image. Taking advantage of this, we explore depth estimation under the assumption that the camera is geocalibrated, a problem we…

计算机视觉与模式识别 · 计算机科学 2021-09-22 Scott Workman , Hunter Blanton

Target detection and recognition is a very challenging task in a wireless environment where a multitude of objects are located, whether to effectively determine their positions or to identify them and predict their moves. In this work, we…

信号处理 · 电气工程与系统科学 2023-05-10 Mamady Delamou , Ahmad Bazzi , Marwa Chafii , El Mehdi Amhoud

The designation of the radar system is to detect the position and velocity of targets around us. The radar transmits a waveform, which is reflected back from the targets, and echo waveform is received. In a commonly used model, the echo is…

信息论 · 计算机科学 2013-09-17 Alexander Fish , Shamgar Gurevich

Environmental monitoring robots often need to estimate data fields (e.g., salinity, temperature, bathymetry) under tight resource constraints. Classical boustrophedon lawnmower surveys provide geometric coverage guarantees but can waste…

机器人学 · 计算机科学 2026-05-28 Kalvik Jakkala , Saurav Agarwal , Jason O'Kane , Srinivas Akella

We propose a novel method to accurately reconstruct a set of images representing a single scene from few linear multi-view measurements. Each observed image is modeled as the sum of a background image and a foreground one. The background…

计算机视觉与模式识别 · 计算机科学 2013-09-19 Gilles Puy , Pierre Vandergheynst

Background modeling is widely used for intelligent surveillance systems to detect moving targets by subtracting the static background components. Most roadside LiDAR object detection methods filter out foreground points by comparing new…

计算机视觉与模式识别 · 计算机科学 2024-08-13 Tianya Zhang , Yi Ge , Peter J. Jin

In this paper, we apply the Feature Space Decomposition (FSD) method developed in [LS24, GLS25, LSSW26, ALSS26] to obtain, under fairly general conditions, matching upper and lower bounds for the population excess risk of spectral methods…

统计理论 · 数学 2026-05-18 Guillaume Lecué , Zhifan Li , Zong Shang

Autonomous flight in GPS-denied indoor spaces requires trajectories that keep visual-localization error tightly bounded across varied missions. Map-based visual localization methods such as feature matching require computationally intensive…

机器人学 · 计算机科学 2026-02-27 Juyeop Han , Lukas Lao Beyer , Guilherme V. Cavalheiro , Sertac Karaman