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We explore the task of geometric reconstruction of images captured from a mixture of ground and aerial views. Current state-of-the-art learning-based approaches fail to handle the extreme viewpoint variation between aerial-ground image…

计算机视觉与模式识别 · 计算机科学 2025-04-18 Khiem Vuong , Anurag Ghosh , Deva Ramanan , Srinivasa Narasimhan , Shubham Tulsiani

Building height retrieval from synthetic aperture radar (SAR) imagery is of great importance for urban applications, yet highly challenging owing to the complexity of SAR data. This paper addresses the issue of building height retrieval in…

图像与视频处理 · 电气工程与系统科学 2021-11-19 Yao Sun , Lichao Mou , Yuanyuan Wang , Sina Montazeri , Xiao Xiang Zhu

Accurate measurement of island area and coastline length is crucial for coastal zone monitoring and oceanographic analysis. However, traditional measurement and mapping methods usually rely heavily on orthophotos, expensive airborne depth…

计算机视觉与模式识别 · 计算机科学 2026-05-13 Quanyun Wu , Kyle Gao , Wentao Sun , Hongjie He , Yuhao Chen , David A. Clausi , Jonathan Li

Supervised and unsupervised homography estimation methods depend on image pairs tailored to specific modalities to achieve high accuracy. However, their performance deteriorates substantially when applied to unseen modalities. To address…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Jinkun You , Jiaxin Cheng , Jie Zhang , Yicong Zhou

CO-SLIDAR is a very promising technique for the metrology of near ground $C_n^2$ profiles. It exploits both phase and scintillation measurements obtained with a dedicated wavefront sensor and allows profiling on the full line of sight…

Among the variety of statistical intervals, highest-density regions (HDRs) stand out for their ability to effectively summarize a distribution or sample, unveiling its distinctive and salient features. An HDR represents the minimum size set…

统计方法学 · 统计学 2024-08-20 Nina Deliu , Brunero Liseo

We present a fast algorithm for generating full sky, high resolution ($\sim 5'$) simulations of the CMB anisotropy pattern. We also discuss the inverse problem, that of evaluating from such a map the full set of $a_{\ell m}$'s and the…

天体物理学 · 物理学 2014-10-13 Pio Francesco Muciaccia , Paolo Natoli , Nicola Vittorio

The paper defines a new coordinate system that was developed in 1977-78 for the world's first digital synthetic aperture radar (SAR) ground processor for images from the Seasat-A satellite. The coordinate system is for the range-Doppler…

物理学史与哲学 · 物理学 2018-08-21 P. H. Robert Orth

We introduce the task of mixed-view panorama synthesis, where the goal is to synthesize a novel panorama given a small set of input panoramas and a satellite image of the area. This contrasts with previous work which only uses input…

计算机视觉与模式识别 · 计算机科学 2025-06-03 Zhexiao Xiong , Xin Xing , Scott Workman , Subash Khanal , Nathan Jacobs

Surveillance and surveying are two important applications of empirical research. A major part of terrain modelling is supported by photographic surveys which are used for capturing expansive natural surfaces using a wide range of sensors --…

图像与视频处理 · 电气工程与系统科学 2023-05-16 Maniratnam Mandal , Venkatesh K. Subramanian

This paper presents an orbit estimation using non-simultaneous horizon detector measurements in the presence of uncertainties in the celestial body rotational velocity and its geometrical characteristics. The celestial body is modelled as a…

天体物理仪器与方法 · 物理学 2018-05-01 Amir Shakouri , Mahdi Hazrati Azad , Nima Assadian

High-resolution satellite imagery has proven useful for a broad range of tasks, including measurement of global human population, local economic livelihoods, and biodiversity, among many others. Unfortunately, high-resolution imagery is…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Yutong He , Dingjie Wang , Nicholas Lai , William Zhang , Chenlin Meng , Marshall Burke , David B. Lobell , Stefano Ermon

Accurate estimation of building heights using very high resolution (VHR) synthetic aperture radar (SAR) imagery is crucial for various urban applications. This paper introduces a Deep Learning (DL)-based methodology for automated building…

计算机视觉与模式识别 · 计算机科学 2025-07-14 Babak Memar , Luigi Russo , Silvia Liberata Ullo , Paolo Gamba

This paper presents a novel CNN-based approach for synthesizing high-resolution LiDAR point cloud data. Our approach generates semantically and perceptually realistic results with guidance from specialized loss-functions. First, we utilize…

图像与视频处理 · 电气工程与系统科学 2021-09-27 Larissa T. Triess , David Peter , Christoph B. Rist , Markus Enzweiler , J. Marius Zöllner

Satellite imagery is regarded as a great opportunity for citizen-based monitoring of activities of interest. Relevant imagery may however not be available at sufficiently high resolution, quality, or cadence -- let alone be uniformly…

计算机视觉与模式识别 · 计算机科学 2024-06-25 Johannes Hoster , Sara Al-Sayed , Felix Biessmann , Alexander Glaser , Kristian Hildebrand , Igor Moric , Tuong Vy Nguyen

We propose a novel data-driven approach for high-resolution bathymetric reconstruction from sidescan. Sidescan sonar (SSS) intensities as a function of range do contain some information about the slope of the seabed. However, that…

机器人学 · 计算机科学 2022-06-17 Yiping Xie , Nils Bore , John Folkesson

In this study we used Hydrus-1D to simulate water infiltration from a ring infiltrometer. We generated water content profiles at each time step of infiltration, based on a particular value of the saturated hydraulic conductivity while…

地球物理 · 物理学 2013-06-11 Emmanuel Léger , Albane Saintenoy , Yves Coquet

Craters are one of the most studied planetary features used for different scientific analyses, such as estimation of surface age and surface processes. Satellite images utilized for crater detection often have low resolution (LR) due to…

图像与视频处理 · 电气工程与系统科学 2024-02-08 Atal Tewari , Nitin Khanna

Exploring the significance of geo-tagged information of a satellite image and associated shadow information in the image to enable man-made infrastructure dimensional characterization, in this paper a novel approach has been developed to…

计算几何 · 计算机科学 2018-03-20 E. MD. Abdelrahim , Romany F. Mansour

In this paper, we detail the high-performance implementation of our spaceborne radar simulator for satellite oceanography. Our software simulates the sea surface and the signal to imitate, as far as possible, the measurement process,…

地球物理 · 物理学 2024-08-22 Goulven Monnier , Benjamin Camus , Yann-Hervé Hellouvry