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This paper presents the assessment of altimetric data from Sentinel-3A satellite operating in Synthetic Aperture Radar (SAR) mode for sea level research studies and applications over the largest archipelagos at Southeast Asia. Both…

大气与海洋物理 · 物理学 2023-07-11 N. H. Idris , S. Vignudelli , X. Deng

Three-dimensional scene reconstruction from sparse-view satellite images is a long-standing and challenging task. While 3D Gaussian Splatting (3DGS) and its variants have recently attracted attention for its high efficiency, existing…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Xuejun Huang , Xinyi Liu , Yi Wan , Zhi Zheng , Bin Zhang , Mingtao Xiong , Yingying Pei , Yongjun Zhang

Novel view synthesis (NVS) enables to generate new images of a scene or convert a set of 2D images into a comprehensive 3D model. In the context of Space Domain Awareness, since space is becoming increasingly congested, NVS can accurately…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Nidhi Mathihalli , Audrey Wei , Giovanni Lavezzi , Peng Mun Siew , Victor Rodriguez-Fernandez , Hodei Urrutxua , Richard Linares

Imaging is a crucial sensing function that finds wide applications in environmental reconstruction, autonomous driving, etc. However, the signal processing methods for existing radio imaging techniques, such as millimeter wave (mmWave)…

信号处理 · 电气工程与系统科学 2026-04-02 Yanmo Hu , Shuowen Zhang , Ross Murch , Liang Liu

Multiple-input-multiple-output (MIMO) millimeter-wave (mmWave) sensors for synthetic aperture radar (SAR) and inverse SAR (ISAR) address the fundamental challenges of cost-effectiveness and scalability inherent to near-field imaging. In…

信号处理 · 电气工程与系统科学 2023-05-04 Josiah W. Smith , Muhammet Emin Yanik , Murat Torlak

Scenes reconstructed by 3D Gaussian Splatting (3DGS) trained on low-resolution (LR) images are unsuitable for high-resolution (HR) rendering. Consequently, a 3DGS super-resolution (SR) method is needed to bridge LR inputs and HR rendering.…

计算机视觉与模式识别 · 计算机科学 2025-12-18 Kaizhe Zhang , Shinan Chen , Qian Zhao , Weizhan Zhang , Caixia Yan , Yudeng Xin

Recently, GRAVITY onboard the Very Large Telescope Interferometer (VLTI) first spatially resolved the structure of the quasar 3C 273 with an unprecedented resolution of $\sim 10\mu$as. A new method of measuring parallax distances has been…

星系天体物理 · 物理学 2021-04-21 Yu-Yang Songsheng , Yan-Rong Li , Pu Du , Jian-Min Wang

Digital surface model generation using traditional multi-view stereo matching (MVS) performs poorly over non-Lambertian surfaces, with asynchronous acquisitions, or at discontinuities. Neural radiance fields (NeRF) offer a new paradigm for…

计算机视觉与模式识别 · 计算机科学 2023-09-04 Lulin Zhang , Ewelina Rupnik

Aiming at the problem that GNSS-RTK technology cannot effectively monitor landslides due to gross errors and high-frequency noise during landslide monitoring, a GNSS-RTK landslide monitoring system based on the improved Raida…

分布式、并行与集群计算 · 计算机科学 2023-02-14 Junming Wang , Yi Shi

Convolutional Neural Networks (CNNs) have been consistently proved state-of-the-art results in image Super-Resolution (SR), representing an exceptional opportunity for the remote sensing field to extract further information and knowledge…

图像与视频处理 · 电气工程与系统科学 2020-11-02 Francesco Salvetti , Vittorio Mazzia , Aleem Khaliq , Marcello Chiaberge

Image super-resolution generation aims to generate a high-resolution image from its low-resolution image. However, more complex neural networks bring high computational costs and memory storage. It is still an active area for offering the…

图像与视频处理 · 电气工程与系统科学 2023-10-23 Neeraj Baghel , Shiv Ram Dubey , Satish Kumar Singh

Comparison between existing, well-established satellite technologies, like the Digital Video Broadcasting (DVB) satellite specifications, and the emerging Third Generation Partnership Project (3GPP) specified 5th Generation New Radio (5G…

网络与互联网体系结构 · 计算机科学 2025-02-20 Lauri Sormunen , Tuomas Huikko , Verneri Rönty , Erno Seppänen , Sami Rantanen , Frans Laakso , Vesa Hytönen , Mikko Majamaa , Jani Puttonen

Navigation and mapping on the lunar surface require robust perception under challenging conditions, including poorly textured environments, high-contrast lighting, and limited computational resources. This paper presents a real-time mapping…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Guillem Casadesus Vila , Adam Dai , Grace Gao

In autonomous robotic systems, precise localization is a prerequisite for safe navigation. However, in complex urban environments, GNSS positioning often suffers from signal occlusion and multipath effects, leading to unreliable absolute…

机器人学 · 计算机科学 2025-07-09 Haitao Lu , Haijier Chen , Haoze Liu , Shoujian Zhang , Bo Xu , Ziao Liu

Accurate characterization of modern on-chip antennas remains challenging, as current probe-station techniques offer limited angular coverage, rely on bespoke hardware, and require frequent manual alignment. This research introduces RAPTAR…

机器人学 · 计算机科学 2025-07-24 Maaz Qureshi , Mohammad Omid Bagheri , Abdelrahman Elbadrawy , William Melek , George Shaker

Delineating farm boundaries through segmentation of satellite images is a fundamental step in many agricultural applications. The task is particularly challenging for smallholder farms, where accurate delineation requires the use of high…

Face super-resolution (FSR) is a critical technique for enhancing low-resolution facial images and has significant implications for face-related tasks. However, existing FSR methods are limited by fixed up-sampling scales and sensitivity to…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Yi Ting Tsai , Yu Wei Chen , Hong-Han Shuai , Ching-Chun Huang

High-Fidelity 3D scene reconstruction plays a crucial role in autonomous driving by enabling novel data generation from existing datasets. This allows simulating safety-critical scenarios and augmenting training datasets without incurring…

计算机视觉与模式识别 · 计算机科学 2025-06-03 Pou-Chun Kung , Skanda Harisha , Ram Vasudevan , Aline Eid , Katherine A. Skinner

Sentinel-5P (S5P) satellite provides atmospheric measurements for air quality and climate monitoring. While the S5P satellite offers rich spectral resolution, it inherits physical limitations that restricts its spatial resolution.…

图像与视频处理 · 电气工程与系统科学 2025-01-30 Hyam Omar Ali , Romain Abraham , Bruno Galerne

Recently, 3D Gaussian Splatting (3DGS) has exceled in novel view synthesis (NVS) with its real-time rendering capabilities and superior quality. However, it faces challenges for high-resolution novel view synthesis (HRNVS) due to the coarse…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Shiyun Xie , Zhiru Wang , Xu Wang , Yinghao Zhu , Chengwei Pan , Xiwang Dong