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Several generic methods have recently been developed for change detection in heterogeneous remote sensing data, such as images from synthetic aperture radar (SAR) and multispectral radiometers. However, these are not well suited to detect…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Jørgen A. Agersborg , Luigi T. Luppino , Stian Normann Anfinsen , Jane Uhd Jepsen

In this letter, a methodology is proposed to improve the scattering powers obtained from model-based decomposition using Polarimetric Synthetic Aperture Radar (PolSAR) data. The novelty of this approach lies in utilizing the intrinsic…

数据分析、统计与概率 · 物理学 2025-05-27 D. Ratha , M. Surendar , A. Bhattacharya

We present a new 10-meter map of dominant tree species in Swedish forests accompanied by pixel-level uncertainty estimates. The tree species classification is based on spatiotemporal metrics derived from Sentinel-1 and Sentinel-2 satellite…

定量方法 · 定量生物学 2025-12-03 Abdulhakim M. Abdi , Fan Wang

This paper presents a non-parametric approach for segmenting trees from airborne LiDAR data in deciduous forests. Based on the LiDAR point cloud, the approach collects crown information such as steepness and height on-the-fly to delineate…

计算机视觉与模式识别 · 计算机科学 2017-01-03 Hamid Hamraz , Marco A. Contreras , Jun Zhang

Multipass SAR interferometry (InSAR) techniques based on meter-resolution spaceborne SAR satellites, such as TerraSAR-X or COSMO-Skymed, provide 3D reconstruction and the measurement of ground displacement over large urban areas.…

信号处理 · 电气工程与系统科学 2020-08-26 Jian Kang , Yuanyuan Wang , Xiao Xiang Zhu

Laser scanning has proven to be an invaluable tool in assessing the decomposition of forest environments. Mobile laser scanning (MLS) has shown to be highly promising for extremely accurate, tree level inventory. In this study, we present…

计算机视觉与模式识别 · 计算机科学 2025-12-08 Juho Korkeala , Jesse Muhojoki , Josef Taher , Klaara Salolahti , Matti Hyyppä , Antero Kukko , Juha Hyyppä

This paper proposes a novel multi-temporal urban mapping approach using multi-modal satellite data from the Sentinel-1 Synthetic Aperture Radar (SAR) and Sentinel-2 MultiSpectral Instrument (MSI) missions. In particular, it focuses on the…

计算机视觉与模式识别 · 计算机科学 2023-06-02 Sebastian Hafner , Yifang Ban

We present a framework for adapting a large pretrained latent diffusion model to high-resolution Synthetic Aperture Radar (SAR) image generation. The approach enables controllable synthesis and the creation of rare or out-of-distribution…

计算机视觉与模式识别 · 计算机科学 2025-08-15 Solène Debuysère , Nicolas Trouvé , Nathan Letheule , Olivier Lévêque , Elise Colin

This work deals with unsupervised image deblurring. We present a new deblurring procedure on images provided by low-resolution synthetic aperture radar (SAR) or simply by multimedia in presence of multiplicative (speckle) or additive noise,…

计算机视觉与模式识别 · 计算机科学 2016-08-03 Mario Mastriani

The stability and ability of an ecosystem to withstand climate change is directly linked to its biodiversity. Dead trees are a key indicator of overall forest health, housing one-third of forest ecosystem biodiversity, and constitute 8%of…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Jacquelyn A. Shelton , Przemyslaw Polewski , Wei Yao , Marco Heurich

Random Ferns -- as a less known example of Ensemble Learning -- have been successfully applied in many Computer Vision applications ranging from keypoint matching to object detection. This paper extends the Random Fern framework to the…

计算机视觉与模式识别 · 计算机科学 2022-02-09 Pengchao Wei , Ronny Hänsch

The data fusion technology aims to aggregate the characteristics of different data and obtain products with multiple data advantages. To solves the problem of reduced resolution of PolSAR images due to system limitations, we propose a fully…

图像与视频处理 · 电气工程与系统科学 2021-07-20 Liupeng Lin , Jie Li , Huanfeng Shen , Lingli Zhao , Qiangqiang Yuan , Xinghua Li

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

This paper presents an autonomous approach to tree detection and segmentation in high resolution airborne LiDAR that utilises state-of-the-art region-based CNN and 3D-CNN deep learning algorithms. If the number of training examples for a…

机器人学 · 计算机科学 2018-10-31 Lloyd Windrim , Mitch Bryson

Autonomous vehicles have gained significant attention due to technological advancements and their potential to transform transportation. A critical challenge in this domain is precise localization, particularly in LiDAR-based map matching,…

机器人学 · 计算机科学 2025-01-07 Minoo Dolatabadi , Fardin Ayar , Ehsan Javanmardi , Manabu Tsukada , Mahdi Javanmardi

Polarimetric Synthetic Aperture Radar (PolSAR) images are establishing as an important source of information in remote sensing applications. The most complete format this type of imaging produces consists of complex-valued Hermitian…

信息论 · 计算机科学 2012-07-04 Leonardo Torres , Antonio C. Medeiros , Alejandro C. Frery

This paper presents two approaches for filter design based on stochastic distances for intensity speckle reduction. A window is defined around each pixel, overlapping samples are compared and only those which pass a goodness-of-fit test are…

信息论 · 计算机科学 2013-08-21 Leonardo Torres , Alejandro C. Frery

Trees Outside Forests (TOF) play an important role in agricultural landscapes by supporting biodiversity, sequestering carbon, and regulating microclimates. Yet, most studies have treated TOF as a single class or relied on rigid rule-based…

计算机视觉与模式识别 · 计算机科学 2025-10-30 Moritz Lucas , Hamid Ebrahimy , Viacheslav Barkov , Ralf Pecenka , Kai-Uwe Kühnberger , Björn Waske

Deep learning models have shown encouraging capabilities for mapping accurately forests at medium resolution with TanDEM-X interferometric SAR data. Such models, as most of current state-of-the-art deep learning techniques in remote…

Polarimetric synthetic aperture radar (PolSAR) images encompass valuable information that can facilitate extensive land cover interpretation and generate diverse output products. Extracting meaningful features from PolSAR data poses…

计算机视觉与模式识别 · 计算机科学 2026-05-18 Mohammed Q. Alkhatib , M. Sami Zitouni , Mina Al-Saad , Nour Aburaed , Hussain Al-Ahmad