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Air pollution has long been a serious environmental health challenge, especially in metropolitan cities, where air pollutant concentrations are exacerbated by the street canyon effect and high building density. Whilst accurately monitoring…

Machine Learning · Computer Science 2021-03-29 Yang Han , Qi Zhang , Victor O. K. Li , Jacqueline C. K. Lam

Accurate detection of inundated water extents during flooding events is crucial in emergency response decisions and aids in recovery efforts. Satellite Remote Sensing data provides a global framework for detecting flooding extents.…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Muthukumaran Ramasubramanian , Iksha Gurung , Shubhankar Gahlot , Ronny Hänsch , Andrew L. Molthan , Manil Maskey

Computational notebooks offer researchers, practitioners, students, and educators the ability to interactively conduct analytics and disseminate reproducible workflows that weave together code, visuals, and narratives. This article explores…

Physics and Society · Physics 2020-01-22 Geoff Boeing

Autonomous vehicles and robots require a full scene understanding of the environment to interact with it. Such a perception typically incorporates pixel-wise knowledge of the depths and semantic labels for each image from a video sensor.…

Computer Vision and Pattern Recognition · Computer Science 2019-07-26 Matthias Ochs , Adrian Kretz , Rudolf Mester

\begin{abstract} The advent of multitemporal high resolution data, like the Copernicus Sentinel-2, has enhanced significantly the potential of monitoring the earth's surface and environmental dynamics. In this paper, we present a novel deep…

Computer Vision and Pattern Recognition · Computer Science 2019-10-18 Maria Papadomanolaki , Sagar Verma , Maria Vakalopoulou , Siddharth Gupta , Konstantinos Karantzalos

We develop a graph active learning pipeline (GAP) to detect surface water and in-river sediment pixels in satellite images. The active learning approach is applied within the training process to optimally select specific pixels to generate…

Image and Video Processing · Electrical Eng. & Systems 2023-06-21 Bohan Chen , Kevin Miller , Andrea L. Bertozzi , Jon Schwenk

Multiple mobile robots play a significant role in various spatially distributed tasks.In unfamiliar and non-repetitive scenarios, reconstructing the global map is time-inefficient and sometimes unrealistic. Hence, research has focused on…

Robotics · Computer Science 2025-12-29 Weining Lu , Qingquan Lin , Litong Meng , Chenxi Li , Bin Liang

Real-time air pollution monitoring is a valuable tool for public health and environmental surveillance. In recent years, there has been a dramatic increase in air pollution forecasting and monitoring research using artificial neural…

Machine Learning · Computer Science 2022-11-11 Chen Lin , Safoora Yousefi , Elvis Kahoro , Payam Karisani , Donghai Liang , Jeremy Sarnat , Eugene Agichtein

While the deep learning-based image deraining methods have made great progress in recent years, there are two major shortcomings in their application in real-world situations. Firstly, the gap between the low-level vision task represented…

Computer Vision and Pattern Recognition · Computer Science 2022-02-24 Kaige Wang , Tianming Wang , Jianchuang Qu , Huatao Jiang , Qing Li , Lin Chang

Sustainable management of groundwater resources under changing climatic conditions require an application of reliable and accurate predictions of groundwater levels. Mechanistic multi-scale, multi-physics simulation models are often too…

Urban planning applications (energy audits, investment, etc.) require an understanding of built infrastructure and its environment, i.e., both low-level, physical features (amount of vegetation, building area and geometry etc.), as well as…

Computer Vision and Pattern Recognition · Computer Science 2017-09-15 Adrian Albert , Jasleen Kaur , Marta Gonzalez

In recent years, Artificial Intelligence Weather Prediction (AIWP) models have achieved performance comparable to, or even surpassing, traditional Numerical Weather Prediction (NWP) models by leveraging reanalysis data. However, a…

Atmospheric and Oceanic Physics · Physics 2024-12-25 Pengcheng Zhao , Jiang Bian , Zekun Ni , Weixin Jin , Jonathan Weyn , Zuliang Fang , Siqi Xiang , Haiyu Dong , Bin Zhang , Hongyu Sun , Kit Thambiratnam , Qi Zhang

Accurate and timely prediction of heavy rainfall events is crucial for effective flood risk management and disaster preparedness. By monitoring, analysing, and evaluating rainfall data at a local level, it is not only possible to take…

Machine Learning · Computer Science 2024-12-24 Edwin Salcedo

Convolutional neural networks (CNN) have made significant advances in detecting roads from satellite images. However, existing CNN approaches are generally repurposed semantic segmentation architectures and suffer from the poor delineation…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Tinghuai Wang , Guangming Wang , Kuan Eeik Tan

The interest for change detection in the field of remote sensing has increased in the last few years. Searching for changes in satellite images has many useful applications, ranging from land cover and land use analysis to anomaly…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Antonio Di Pilato , Nicolò Taggio , Alexis Pompili , Michele Iacobellis , Adriano Di Florio , Davide Passarelli , Sergio Samarelli

We propose a novel convolutional neural network architecture for estimating geospatial functions such as population density, land cover, or land use. In our approach, we combine overhead and ground-level images in an end-to-end trainable…

Computer Vision and Pattern Recognition · Computer Science 2017-08-11 Scott Workman , Menghua Zhai , David J. Crandall , Nathan Jacobs

Graph neural networks (GNNs) have been demonstrated to perform well in graph representation learning, but always lacking in generalization capability when tackling out-of-distribution (OOD) data. Graph invariant learning methods, backed by…

Machine Learning · Computer Science 2023-12-19 Tianrui Jia , Haoyang Li , Cheng Yang , Tao Tao , Chuan Shi

Surprisingly a number of Earth's waterways remain unmapped, with a significant number in low and middle income countries. Here we build a computer vision model (WaterNet) to learn the location of waterways in the United States, based on…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Matthew Pierson , Zia Mehrabi

We propose a new approach, named PolyMapper, to circumvent the conventional pixel-wise segmentation of (aerial) images and predict objects in a vector representation directly. PolyMapper directly extracts the topological map of a city from…

Computer Vision and Pattern Recognition · Computer Science 2019-12-02 Zuoyue Li , Jan Dirk Wegner , Aurélien Lucchi

Automatic urban land cover classification is a fundamental problem in remote sensing, e.g. for environmental monitoring. The problem is highly challenging, as classes generally have high inter-class and low intra-class variance. Techniques…

Computer Vision and Pattern Recognition · Computer Science 2018-05-10 Michael Kampffmeyer , Arnt-Børre Salberg , Robert Jenssen