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This paper proposes a fast and accurate surface normal estimation method which can be directly used on depth maps (organized point clouds). The surface normal estimation process is formulated as a closed-form expression. In order to reduce…

计算机视觉与模式识别 · 计算机科学 2022-09-20 Saed Moradi , Alireza Memarmoghadam , Denis Laurendeau

In this paper, we propose a resource-efficient approach to provide an autonomous UAV with an on-board perception method to detect safe, hazard-free landing sites during flights over complex 3D terrain. We aggregate 3D measurements acquired…

The goal of synthetic aperture imaging is to estimate the reflectivity of a remote region of interest by processing data gathered with a moving sensor which emits periodically a signal and records the backscattered wave. We introduce and…

图像与视频处理 · 电气工程与系统科学 2019-07-05 Liliana Borcea , Josselin Garnier

We introduce Seamless Satellite-image Synthesis (SSS), a novel neural architecture to create scale-and-space continuous satellite textures from cartographic data. While 2D map data is cheap and easily synthesized, accurate satellite imagery…

计算机视觉与模式识别 · 计算机科学 2021-11-08 Jialin Zhu , Tom Kelly

This paper presents a method for estimating significant wave height (Hs) from sparse S_pectral P_oint using a T_ransformer-based approach (SPT). Based on empirical observations that only a minority of spectral points with strong power…

信号处理 · 电气工程与系统科学 2026-01-09 Yi Zhou , Li Wang , Hang Su , Tian Wang

Horizon line (or sea line) detection (HLD) is a critical component in multiple marine autonomous navigation tasks, such as identifying the navigation area (i.e., the sea), obstacle detection and geo-localization, and digital video…

计算机视觉与模式识别 · 计算机科学 2024-03-21 Yassir Zardoua , Abdelhamid El Wahabi , Mohammed Boulaala , Abdelali Astito

Large-scale stellar surveys, such as SDSS-V, 4MOST, WEAVE, and PLATO, require accurate atmospheric models and synthetic spectra of stars for accurate analyses of fundamental stellar parameters and chemical abundances. The primary goal of…

太阳与恒星天体物理 · 物理学 2024-07-15 Philipp Eitner , Maria Bergemann , Richard Hoppe , Åke Nordlund , Bertrand Plez , Jonas Klevas

The sea level observations from satellite altimetry are characterised by a sparse spatial and temporal coverage. For this reason, along-track data are routinely interpolated into daily grids. The latter are strongly smoothed in time and…

大气与海洋物理 · 物理学 2023-03-22 Marcello Passaro , Marie-Christin Juhl

We consider sampling and detection strategies for solar illuminated space debris. We argue that the lowest detectable debris cross section may be reduced by 10-100x by analysis of stacks of image frames collected at high rates rather than…

地球与行星天体物理 · 物理学 2025-12-02 Hasan Bahcivan , David J. Brady , Gordon C. Hageman

Accurate and efficient object detection is crucial for safe and efficient operation of earth-moving equipment in mining. Traditional 2D image-based methods face limitations in dynamic and complex mine environments. To overcome these…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Mehala Balamurali , Ehsan Mihankhah

In this work the orbital dynamics of Earth satellites about the geosynchronous altitude are explored, with primary goal to assess current mitigation guidelines as well as to discuss the future exploitation of the region. A thorough…

地球与行星天体物理 · 物理学 2019-05-07 Ioannis Gkolias , Camilla Colombo

This study presents an innovative approach to creating a dynamic, AI based emission inventory system for use with the Weather Research and Forecasting model coupled with Chemistry (WRF Chem), designed to simulate vehicular and other…

Deep models trained using synthetic data require domain adaptation to bridge the gap between the simulation and target environments. State-of-the-art domain adaptation methods often demand sufficient amounts of (unlabelled) data from the…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Mohsi Jawaid , Ethan Elms , Yasir Latif , Tat-Jun Chin

We propose HYBRIDDEPTH, a robust depth estimation pipeline that addresses key challenges in depth estimation,including scale ambiguity, hardware heterogeneity, and generalizability. HYBRIDDEPTH leverages focal stack, data conveniently…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Ashkan Ganj , Hang Su , Tian Guo

Aerial object detection is a challenging task, in which one major obstacle lies in the limitations of large-scale data collection and the long-tail distribution of certain classes. Synthetic data offers a promising solution, especially with…

计算机视觉与模式识别 · 计算机科学 2023-11-22 Yanan Jian , Fuxun Yu , Simranjit Singh , Dimitrios Stamoulis

The horizon line is an important geometric feature for many image processing and scene understanding tasks in computer vision. For instance, in navigation of autonomous vehicles or driver assistance, it can be used to improve 3D…

计算机视觉与模式识别 · 计算机科学 2020-01-10 Florian Kluger , Hanno Ackermann , Michael Ying Yang , Bodo Rosenhahn

This work shows a procedural method for extracting object heights from LiDAR and aerial imagery. We discuss how to get heights and the future of LiDAR and imagery processing. SOTA object segmentation allows us to take get object heights…

计算机视觉与模式识别 · 计算机科学 2024-08-05 Jesus Guerrero

Quantifying long-term statistical properties of satellite trajectories typically entails time-consuming trajectory propagation. We present a fast, ergodic\cite{Arnold} method of analytically estimating these for $J_2-$perturbed elliptical…

地球与行星天体物理 · 物理学 2021-02-09 Andrew J. Graven , Alan H. Barr , Martin W. Lo

Satellite image composition plays a critical role in remote sensing applications such as data augmentation, disaste simulation, and urban planning. We propose HarmoniDiff-RS, a training-free diffusion-based framework for harmonizing…

计算机视觉与模式识别 · 计算机科学 2026-04-22 Xiaoqi Zhuang , Jefersson A. Dos Santos , Jungong Han

What's the most accurate 3D model of your face you can obtain while sitting at your desk? We attempt to answer this question in our work. High fidelity face reconstructions have so far been limited to either studio settings or through…

计算机视觉与模式识别 · 计算机科学 2020-03-20 Shubham Agrawal , Anuj Pahuja , Simon Lucey