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Delineating wildfire affected areas using satellite imagery remains challenging due to irregular and spatially heterogeneous spectral changes across the electromagnetic spectrum. While recent deep learning approaches achieve high accuracy…

计算机视觉与模式识别 · 计算机科学 2026-01-15 Maria Sdraka , Dimitrios Michail , Ioannis Papoutsis

Deforestation estimation and fire detection in the Amazon forest poses a significant challenge due to the vast size of the area and the limited accessibility. However, these are crucial problems that lead to severe environmental…

计算机视觉与模式识别 · 计算机科学 2023-07-12 Gabor Fodor , Marcos V. Conde

In this work we explore the performance of DCNNs on semantic segmentation using spaceborne polarimetric synthetic aperture radar (PolSAR) datasets. The semantic segmentation task using PolSAR data can be categorized as weakly supervised…

图像与视频处理 · 电气工程与系统科学 2024-11-20 Sheng Sun , Armando Marino , Wenze Shui , Zhongwen Hu

The effective combination of the complementary information provided by the huge amount of unlabeled multi-sensor data (e.g., Synthetic Aperture Radar (SAR) and optical images) is a critical topic in remote sensing. Recently, contrastive…

图像与视频处理 · 电气工程与系统科学 2021-10-11 Yuxing Chen , Lorenzo Bruzzone

In this paper, we explore the possibility of detecting polar lows in C-band SAR images by means of deep learning. Specifically, we introduce a novel dataset consisting of Sentinel-1 images divided into two classes, representing the presence…

计算机视觉与模式识别 · 计算机科学 2022-09-09 Jakob Grahn , Filippo Maria Bianchi

Despeckling is a crucial noise reduction task in improving the quality of synthetic aperture radar (SAR) images. Directly obtaining noise-free SAR images is a challenging task that has hindered the development of accurate despeckling…

计算机视觉与模式识别 · 计算机科学 2024-01-17 Shunya Kato , Masaki Saito , Katsuhiko Ishiguro , Sol Cummings

In recent years, wildfires have posed a significant challenge due to their increasing frequency and severity. For this reason, accurate delineation of burned areas is crucial for environmental monitoring and post-fire assessment. However,…

计算机视觉与模式识别 · 计算机科学 2023-09-18 Edoardo Arnaudo , Luca Barco , Matteo Merlo , Claudio Rossi

The accurate characterization of the severity of the wildfire event strongly contributes to the characterization of the fuel conditions in fire-prone areas, and provides valuable information for disaster response. The aim of this study is…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Beichen Zhang , Huiqi Wang , Amani Alabri , Karol Bot , Cole McCall , Dale Hamilton , Vít Růžička

A Polarimetric Synthetic Aperture Radar (PolSAR) sensor is able to collect images in different polarization states, making it a rich source of information for target characterization. PolSAR images are inherently affected by speckle.…

图像与视频处理 · 电气工程与系统科学 2022-02-16 Adugna G. Mullissa , Claudio Persello , Johannes Reiche

Monitoring wildfires is an essential step in minimizing their impact on the planet, understanding the many negative environmental, economic, and social consequences. Recent advances in remote sensing technology combined with the increasing…

计算机视觉与模式识别 · 计算机科学 2023-11-30 Ian Mancilla-Wulff , Jaime Carrasco , Cristobal Pais , Alejandro Miranda , Andres Weintraub

The pixel percentage belonging to the user defined area that are assigned to cluster in a confusion matrix for RADARSAT-2 over Vancouver area has been analysed for classification. In this study, supervised Wishart and Support Vector Machine…

计算机视觉与模式识别 · 计算机科学 2016-08-02 Abhishek Maity

Classification of polarimetric synthetic aperture radar (PolSAR) images is an active research area with a major role in environmental applications. The traditional Machine Learning (ML) methods proposed in this domain generally focus on…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Mete Ahishali , Serkan Kiranyaz , Turker Ince , Moncef Gabbouj

Synthetic Aperture Radar (SAR) imagery is widely used for flood monitoring due to its all-weather and day-night imaging capability. However, flood mapping using single-polarization SAR data remains challenging in complex environments where…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Jagrati Talreja , Tewodros Syum Gebre , Leila Hashemi Beni

Access to high resolution satellite imagery has dramatically increased in recent years as several new constellations have entered service. High revisit frequencies as well as improved resolution has widened the use cases of satellite…

图像与视频处理 · 电气工程与系统科学 2021-08-06 Michael Thoreau , Frazer Wilson

Accurate and timely mapping of burned areas is crucial for environmental monitoring, disaster management, and assessment of climate change. This study presents a novel approach to automated burned area mapping using the AlphaEArth dataset…

计算机视觉与模式识别 · 计算机科学 2025-09-10 Seyd Teymoor Seydi

Rapid and accurate wildfire smoke severity assessment from satellite images is essential for emergency response, air quality modeling, and human health risk management. Existing deep learning approaches treat smoke detection as a binary…

计算机视觉与模式识别 · 计算机科学 2026-05-18 Ranjith Chodavarapu

Camera and Lidar processing have been revolutionized with the rapid development of deep learning model architectures. Automotive radar is one of the crucial elements of automated driver assistance and autonomous driving systems. Radar still…

计算机视觉与模式识别 · 计算机科学 2021-03-08 Farzan Erlik Nowruzi , Dhanvin Kolhatkar , Prince Kapoor , Elnaz Jahani Heravi , Fahed Al Hassanat , Robert Laganiere , Julien Rebut , Waqas Malik

The approaches for analyzing the polarimetric scattering matrix of polarimetric synthetic aperture radar (PolSAR) data have always been the focus of PolSAR image classification. Generally, the polarization coherent matrix and the covariance…

计算机视觉与模式识别 · 计算机科学 2019-04-26 Xu Liu , Licheng Jiao , Xu Tang , Qigong Sun , Dan Zhang

Land cover mapping is essential to monitoring the environment and understanding the effects of human activities on it. The automatic approaches to land cover mapping (i.e., image segmentation) mostly used traditional machine learning that…

图像与视频处理 · 电气工程与系统科学 2021-03-24 Sanja Šćepanović , Oleg Antropov , Pekka Laurila , Yrjö Rauste , Vladimir Ignatenko , Jaan Praks

In this study we investigate the potential for using synthetic aperture radar (SAR) data to provide high resolution defoliation and regrowth mapping of trees in the tundra-forest ecotone. Using aerial photographs, four areas with live…

图像与视频处理 · 电气工程与系统科学 2020-07-20 Jørgen A. Agersborg , Stian Normann Anfinsen , Jane Uhd Jepsen
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