Results 41 to 50 of about 2,221 (193)

Deep learning in remote sensing: a review [PDF]

open access: yes, 2017
Standing at the paradigm shift towards data-intensive science, machine learning techniques are becoming increasingly important. In particular, as a major breakthrough in the field, deep learning has proven as an extremely powerful tool in many fields ...
Fraundorfer, Friedrich   +6 more
core   +4 more sources

Verification of Complex Image Based Sparse SAR Imaging Method on GaoFen-3 Dataset

open access: yesLeida xuebao, 2020
Sparse signal processing-based Synthetic Aperture Radar (SAR) imaging, also known as sparse SAR imaging, is the main research direction of sparse microwave imaging theory.
BI Hui   +3 more
doaj   +1 more source

Texture Extraction Techniques for the Classification of Vegetation Species in Hyperspectral Imagery: Bag of Words Approach Based on Superpixels [PDF]

open access: yes, 2020
Texture information allows characterizing the regions of interest in a scene. It refers to the spatial organization of the fundamental microstructures in natural images.
Argüello Pedreira, Francisco Santiago   +2 more
core   +1 more source

Review on Active and Passive Remote Sensing Techniques for Road Extraction [PDF]

open access: yes, 2021
Digital maps of road networks are a vital part of digital cities and intelligent transportation. In this paper, we provide a comprehensive review on road extraction based on various remote sensing data sources, including high-resolution images ...
Ahokas, Eero   +12 more
core   +2 more sources

Semi-Empirical Algorithm for Wind Speed Retrieval from Gaofen-3 Quad-Polarization Strip Mode SAR Data [PDF]

open access: yesJournal of Ocean University of China, 2019
Synthetic aperture radar (SAR) is a suitable tool to obtain reliable wind retrievals with high spatial resolution. The geophysical model function (GMF), which is widely employed for wind speed retrieval from SAR data, describes the relationship between the SAR normalized radar cross-section (NRCS) at the copolarization channel (vertical-vertical and ...
Zhu, Shuai   +4 more
openaire   +2 more sources

Commercial Satellite Imagery as an Evolving Open-Source Verification Technology: Emerging Trends and Their Impact for Nuclear Nonproliferation Analysis [PDF]

open access: yes, 2015
One evolving and increasingly important means of verification of a State’s compliance with its international security obligations involves the application of publicly available commercial satellite imagery.
PABIAN FRANK
core   +1 more source

Large-scale Land Cover Classification in GaoFen-2 Satellite Imagery

open access: yes, 2018
Many significant applications need land cover information of remote sensing images that are acquired from different areas and times, such as change detection and disaster monitoring.
Lu, Qikai   +3 more
core   +1 more source

On the Use of Ocean Surface Doppler Velocity for Oceanic Front Extraction From Chinese Gaofen-3 SAR Data

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Oceanic front extraction from synthetic aperture radar (SAR) images is of great significance to the study of marine ecosystems. At present, the methods for oceanic front extraction are usually based on SAR intensity images, which treat oceanic fronts as edge-like features in the SAR images. However, affected by radar parameters and sea state, sometimes,
Kai Sun   +4 more
openaire   +2 more sources

Lithological mapping of East Tianshan area using integrated data fused by Chinese GF-1 PAN and ASTER multi-spectral data

open access: yesOpen Geosciences, 2018
The East Tianshan Mountain is one of the most important gold ore forming zones in northwestern China and central Asia. The Chinese GaoFen-1 (GF-1), the first Chinese high resolution satellite, is characterized by its 2-m resolution PAN data. The Advanced
Yang Min   +4 more
doaj   +1 more source

Wave Height Estimation and Validation Based on the UFS Mode Data of Gaofen-3 in South China Sea

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
The ultrafinestrip (UFS) of the Gaofen-3 (GF-3) satellite provides extensive ocean wave details due to the high spatial resolution of 3 m. In this article, a new empirical model is developed to estimate wave height from GF-3 UFS mode data in South China Sea (SCS).
Limin Cui   +3 more
openaire   +2 more sources

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