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In this paper, we present our deep learning-based human detection system that uses optical (RGB) and long-wave infrared (LWIR) cameras to detect, track, localize, and re-identify humans from UAVs flying at high altitude. In each spectrum, a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Timo Hinzmann , Tobias Stegemann , Cesar Cadena , Roland Siegwart

Accurate identification of unobservable regions in nighttime is essential for autonomous scheduling and data quality control in observations.Traditional methods-such as infrared sensing or photometric extinction-provide only…

Instrumentation and Methods for Astrophysics · Physics 2025-10-23 Jian Cui , Guo-Wang Du , Xin-Zhong Er , Chu-Xiang Li , Jun-Fan Hou , Yu-Xin Xin , Xiang-kun Liu , Xiao-Wei Liu

Cloud detection in remote sensing imagery is a fundamental, critical, and highly challenging problem. Existing deep learning-based cloud detection methods generally formulate it as a single-stage pixel-wise binary segmentation task with one…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Jiajun Yang , Keyan Chen , Zhengxia Zou , Zhenwei Shi

We present a framework for cloud characterization that leverages modern unsupervised deep learning technologies. While previous neural network-based cloud classification models have used supervised learning methods, unsupervised learning…

This work explores capabilities of the pre-trained CLIP vision-language model to identify satellite images affected by clouds. Several approaches to using the model to perform cloud presence detection are proposed and evaluated, including a…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Mikolaj Czerkawski , Robert Atkinson , Christos Tachtatzis

RGB-D cameras, which give an RGB image to- gether with depths, are becoming increasingly popular for robotic perception. In this paper, we address the task of detecting commonly found objects in the 3D point cloud of indoor scenes obtained…

Robotics · Computer Science 2012-09-06 Abhishek Anand , Hema Swetha Koppula , Thorsten Joachims , Ashutosh Saxena

We present a learning-based method for 6 DoF pose estimation of rigid objects in point cloud data. Many recent learning-based approaches use primarily RGB information for detecting objects, in some cases with an added refinement step using…

Computer Vision and Pattern Recognition · Computer Science 2020-06-18 Frederik Hagelskjær , Anders Glent Buch

Vast amounts of astronomical photometric data are generated from various projects, requiring significant effort to identify variable stars and other object classes. In light of this, a general, widely applicable classification framework…

Instrumentation and Methods for Astrophysics · Physics 2024-09-23 Kaiming Cui , D. J. Armstrong , Fabo Feng

Cloud detection is an important preprocessing step for the precise application of optical satellite imagery. In this paper, we propose a deep learning based cloud detection method named multi-scale convolutional feature fusion (MSCFF) for…

Computer Vision and Pattern Recognition · Computer Science 2019-03-06 Zhiwei Li , Huanfeng Shen , Qing Cheng , Yuhao Liu , Shucheng You , Zongyi He

Autonomous driving is rapidly advancing, and Level 2 functions are becoming a standard feature. One of the foremost outstanding hurdles is to obtain robust visual perception in harsh weather and low light conditions where accuracy…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Mahesh M Dhananjaya , Varun Ravi Kumar , Senthil Yogamani

The safety of wind turbines is a prerequisite for the stable operation of offshore wind farms. However, bird damage poses a direct threat to the safe operation of wind turbines and wind turbine blades. In addition, millions of birds are…

Computer Vision and Pattern Recognition · Computer Science 2023-06-29 Yantong Liu , Xingke Li , Jong-Chan Lee

We describe a simple pre-training approach for point clouds. It works in three steps: 1. Mask all points occluded in a camera view; 2. Learn an encoder-decoder model to reconstruct the occluded points; 3. Use the encoder weights as…

Computer Vision and Pattern Recognition · Computer Science 2021-10-15 Hanchen Wang , Qi Liu , Xiangyu Yue , Joan Lasenby , Matthew J. Kusner

Accurate and reliable forecasting of total cloud cover (TCC) is vital for many areas such as astronomy, energy demand and production, or agriculture. Most meteorological centres issue ensemble forecasts of TCC, however, these forecasts are…

Machine Learning · Statistics 2021-05-03 Ágnes Baran , Sebastian Lerch , Mehrez El Ayari , Sándor Baran

Computer vision techniques enable automated detection of sky pixels in outdoor imagery. In urban climate, sky detection is an important first step in gathering information about urban morphology and sky view factors. However, obtaining…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Kerry A. Nice , Jasper S. Wijnands , Ariane Middel , Jingcheng Wang , Yiming Qiu , Nan Zhao , Jason Thompson , Gideon D. P. A. Aschwanden , Haifeng Zhao , Mark Stevenson

Deep learning provides a powerful new approach to many computer vision tasks. Height prediction from aerial images is one of those tasks that benefited greatly from the deployment of deep learning which replaced old multi-view geometry…

Computer Vision and Pattern Recognition · Computer Science 2021-11-15 Elhousni Mahdi , Zhang Ziming , Huang Xinming

The paper presents a simple and effective learning-based method for computing a discriminative 3D point cloud descriptor for place recognition purposes. Recent state-of-the-art methods have relatively complex architectures such as…

Computer Vision and Pattern Recognition · Computer Science 2022-04-11 Jacek Komorowski

Detecting pedestrians is a crucial task in autonomous driving systems to ensure the safety of drivers and pedestrians. The technologies involved in these algorithms must be precise and reliable, regardless of environment conditions. Relying…

Computer Vision and Pattern Recognition · Computer Science 2021-05-05 Òscar Lorente , Josep R. Casas , Santiago Royo , Ivan Caminal

Traditional object detection methods face performance degradation challenges in complex scenarios such as low-light conditions and heavy occlusions due to a lack of high-level semantic understanding. To address this, this paper proposes an…

Computer Vision and Pattern Recognition · Computer Science 2025-09-25 Yunqing Hu , Zheming Yang , Chang Zhao , Wen Ji

This work has been accepted by IEEE TGRS for publication. The majority of optical observations acquired via spaceborne earth imagery are affected by clouds. While there is numerous prior work on reconstructing cloud-covered information,…

Image and Video Processing · Electrical Eng. & Systems 2021-07-07 Patrick Ebel , Andrea Meraner , Michael Schmitt , Xiaoxiang Zhu

Compared to abstract features, significant objects, so-called landmarks, are a more natural means for vehicle localization and navigation, especially in challenging unstructured environments. The major challenge is to recognize landmarks in…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Benjamin Naujoks , Patrick Burger , Hans-Joachim Wuensche