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This paper presents a novel indoor positioning approach that leverages antenna radiation pattern characteristics through Received Signal Strength Indication (RSSI) measurements in a single-antenna system. By rotating the antenna or…

信号处理 · 电气工程与系统科学 2025-03-04 Zhisheng Rong , Wenzhi Liu , Xiayue Liu , Zhixiang Xu , Yufei Jiang , Xu Zhu

Thermal cameras are an important tool for agricultural research because they allow for non-invasive measurement of plant temperature, which relates to important photochemical, hydraulic, and agronomic traits. Utilizing low-cost thermal…

计算机视觉与模式识别 · 计算机科学 2024-05-31 Heesup Yun , Sassoum Lo , Christine H. Diepenbrock , Brian N. Bailey , J. Mason Earles

Coded aperture snapshot hyperspectral imaging (CASSI) system which captures 2-D spatial information and 1-D spectral information in just one or two shots has become a promising technology to capture hyperspectral image (HSI). However,…

光学 · 物理学 2025-04-30 Jiayu Di , Yantao Jin , Zhenming Yu , Liming Cheng , Jingyue Ma , Ning Zhan , Kun Xu

In urban areas, signal reception conditions are often poor due to reflections from buildings, resulting in inaccurate global navigation satellite system (GNSS)-based positioning. Various 3D-mapping-aided (3DMA) GNSS techniques, including…

信号处理 · 电气工程与系统科学 2026-01-22 Sanghyun Kim , Jiwon Seo

Taking advantage of the rolling shutter effect of CMOS cameras in smartphones is a common practice to increase the transfered data rate with visible light communication (VLC) without employing external equipment such as photodiodes. VLC can…

网络与互联网体系结构 · 计算机科学 2017-07-14 Ali Ugur Guler , Tristan Braud , Pan Hui

Machine vision and image processing are often used with sensors for situation awareness in autonomous systems, from industrial robots to self-driving cars. The 3D depth sensors, such as LiDAR (Light Detection and Ranging), Radar, are great…

计算机视觉与模式识别 · 计算机科学 2026-05-14 MA Muktadir , Sydney Parker , Sun Yi

The main focus of beam alignment is to find the optimal beam which yields the largest received signal strength (RSS) with faster speed.In this paper, we demonstrate an efficient beam alignment scheme with our testbed. The algorithm we…

信号处理 · 电气工程与系统科学 2020-03-09 Junyeol Hong , Hyeonjin Chung , Sunwoo Kim

In this paper, we introduce the concept of partially-connected Receiving Reconfigurable Intelligent Surfaces (R-RISs), which refers to metasurfaces designed to efficiently sense electromagnetic waveforms impinging on them, and perform…

信号处理 · 电气工程与系统科学 2022-12-06 Jiguang He , Aymen Fakhreddine , Charles Vanwynsberghe , Henk Wymeersch , George C. Alexandropoulos

In this article we purpose a novel method for planar pose estimation of mobile robots. This method is based on an analytic solution (which we derived) for the projection of 3D straight lines, onto the mirror of Non-Central Catadioptric…

机器人学 · 计算机科学 2016-07-11 Andre Mateus , Pedro Miraldo , Pedro U. Lima

We propose a real-time method to estimate spatiallyvarying indoor lighting from a single RGB image. Given an image and a 2D location in that image, our CNN estimates a 5th order spherical harmonic representation of the lighting at the given…

计算机视觉与模式识别 · 计算机科学 2019-06-11 Mathieu Garon , Kalyan Sunkavalli , Sunil Hadap , Nathan Carr , Jean-François Lalonde

In this paper, we propose a new wireless sensing system equipped with the movable-antenna (MA) array, which can flexibly adjust the positions of antenna elements for improving the sensing performance over conventional antenna arrays with…

信息论 · 计算机科学 2024-05-03 Wenyan Ma , Lipeng Zhu , Rui Zhang

In a context of 3D mapping, it is very important to get accurate measurements from sensors. In particular, Light Detection And Ranging (LIDAR) measurements are typically treated as a zero-mean Gaussian distribution. We show that this…

机器人学 · 计算机科学 2019-08-29 Johann Laconte , Simon-Pierre Deschênes , Mathieu Labussière , François Pomerleau

To mitigate the loss of satellite navigation signals in urban canyons and indoor environments, we propose an active simultaneous transmitting and reflecting reconfigurable intelligent surface (ASTARS) empowered satellite positioning…

信息论 · 计算机科学 2025-07-03 Yu Zhang , Xin Sun , Tianwei Hou , Anna Li , Sofie Pollin , Yuanwei Liu , Arumugam Nallanathan

In this paper, we investigate the physical-layer security for a spatial modulation (SM) based indoor visible light communication (VLC) system, which includes multiple transmitters, a legitimate receiver, and a passive eavesdropper (Eve). At…

信息论 · 计算机科学 2019-06-25 Jin-Yuan Wang , Hong Ge , Min Lin , Jun-Bo Wang , Jianxin Dai , Mohamed-Slim Alouini

The emergence of visible light communication (VLC) technology as a solution to solve radio frequency impediments, such as spectrum shortage, is continuously appealing. In addition to its large and unlicensed bandwidth, VLC provides a high…

信号处理 · 电气工程与系统科学 2020-09-16 Alain R. Ndjiongue , Telex M. N. Ngatched , Octavia A. Dobre , Harald Haas

In this paper, we present a novel, learning-based, two-step super-resolution (SR) algorithm well suited to solve the specially demanding problem of obtaining SR estimates from short image sequences. The first step, devoted to increase the…

计算机视觉与模式识别 · 计算机科学 2012-01-19 Carlos Miravet , Francisco B. Rodríguez

We present a method named iComMa to address the 6D camera pose estimation problem in computer vision. Conventional pose estimation methods typically rely on the target's CAD model or necessitate specific network training tailored to…

计算机视觉与模式识别 · 计算机科学 2024-03-21 Yuan Sun , Xuan Wang , Yunfan Zhang , Jie Zhang , Caigui Jiang , Yu Guo , Fei Wang

Indoor positioning plays a pivotal role in a wide range of applications, from smart homes to industrial automation. In this paper, we propose a comprehensive approach for accurate positioning in indoor environments through the integration…

网络与互联网体系结构 · 计算机科学 2023-12-27 Karamat Beigi , Hamed Shah-Mansouri

Accurate camera localization is crucial for modern retail environments, enabling enhanced customer experiences, streamlined inventory management, and autonomous operations. While Absolute Pose Regression (APR) from a single image offers a…

计算机视觉与模式识别 · 计算机科学 2025-08-18 Yoli Shavit , Yosi Keller

WiFi technology has been used pervasively in fine-grained indoor localization, gesture recognition, and adaptive communication. Achieving better performance in these tasks generally boils down to differentiating Line-Of-Sight (LOS) from…

机器人学 · 计算机科学 2020-02-06 Sahib Singh Dhanjal , Maani Ghaffari , Ryan M. Eustice