Exploració per autor "López Martínez, Carlos"
Ara es mostren els items 63-82 de 132
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Impact of wind-induced scatterers motion on GB-SAR imaging
(Institute of Electrical and Electronics Engineers (IEEE), 2018-08-13)
Article
Accés obertGround-based synthetic aperture radar (GB-SAR) sensors represent a cost-effective solution for change detection and ground displacement assessment of small-scale areas in real-time early warning applications. GB-SAR systems ... -
Implementing the European Space Agency’s SentiNel application platform’s open-source Python module for differential synthetic aperture radar interferometry coseismic ground deformation from Sentinel-1 data
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-12-21)
Article
Accés obertDifferential SAR Interferometry is a largely exploited technique to study ground deformations. A key application is the detection of the effects promoted by earthquakes, including detailed variations in ground deformations ... -
Improving the wishart synthetic aperture radar image classifications through deterministic simulated annealing
(2011-11)
Article
Accés restringit per política de l'editorialThis paper proposes the use of Deterministic Simulated Annealing (DSA) for Synthetic Aperture Radar (SAR) image classification for cluster refinement. We use the initial classification provided by the maximum- likelihood ... -
Improving wishart classification of polarimetric SAR data using the hopfield neural network optimization approach
(2012-11-19)
Article
Accés restringit per política de l'editorialThis paper proposes the optimization relaxation approach based on the analogue Hopfield Neural Network (HNN) for cluster refinement of pre-classified Polarimetric Synthetic Aperture Radar (PolSAR) image data. We consider ... -
Influence of speckle filtering of polarimetric SAR data on different classification methods
(IEEE, 2011)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper analyzes the effects of speckle filtering on polarimetric SAR decomposition and classification. We compared the results of the refined Lee, IDAN and Non-Local Polarimetric filters, and discussed their ALOS/PALSAR ... -
Initial evaluation of SAR capabilities in UAV multicopter platforms
(2017-10-04)
Article
Accés obertAirborne synthetic aperture radar (SAR) sensors have been commonly used during the last decades to monitor different phenomena in medium-scale areas of observation, such as object detection and characterization or topographic ... -
L-band SAR co-polarized phase difference modeling for corn fields
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-11-15)
Article
Accés obertThis research aims at modeling the microwave backscatter of corn fields by coupling an incoherent, interaction-based scattering model with a semi-empirical bulk vegetation dielectric model. The scattering model is fitted ... -
Land, jet stream, and other atmospheric effects on burned area estimation during the South Asian heatwave of 2022
(2024-04)
Article
Accés obertUnderstanding the key variables that characterise fire propagation is important for a better estimation of fire events and their impacts. This study uses machine learning combined with satellite remote sensing and atmospheric ... -
Large-scale automatic vessel monitoring based on dual-polarization sentinel-1 and AIS data
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-05-07)
Article
Accés obertThis research addresses the use of dual-polarimetric descriptors for automatic large-scale ship detection and characterization from synthetic aperture radar (SAR) data. Ship detection is usually performed independently on ... -
Local isotropy indicator for SAR image filtering: application to Envisat/ASAR images of the Doñana Wetland
(2015-04)
Article
Accés obertThis paper explores a geometrical and computationally simple operator, named Ds, for local isotropy assessment on SAR images. It is assumed that isotropic intensity distributions in natural areas, either textured or ... -
Local texture stationarity indicator for filtering Doñana wetlands SAR images
(IEEE, 2012)
Text en actes de congrés
Accés obertThis paper defines a new operator, named Ds, for local texture stationarity assessment on SAR images. . The aim is to discriminate heterogeneous targets from land cover types of high normalized variance values, as those ... -
Low-level processing of PolSAR images with binary partition trees
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper discusses the interest of Binary Partition Trees (BPTs) and the usefulness of graph cuts for low-level processing of PolSAR images. BPTs group pixels to form homogeneous regions, which are hierarchically structured ... -
Modeling and reduction of SAR interferometric phase noise in the wavelet domain
(IEEE Press. Institute of Electrical and Electronics Engineers, 2002-12)
Article
Accés obertThis paper addresses the problem of interferometric phase noise reduction in synthetic aperture radar interferometry. A new phase noise model in the complex domain is introduced and validated by using both simulated and ... -
Monitoring changes in the coastal environment based on SAR Sentinel-1 time-series
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
Text en actes de congrés
Accés obertThis research addresses the use of Sentinel-1 time series with the aim of detecting spatio-temporal changes in the coastal environment. To this end an automatic and unsupervised coastline detection method is proposed. ... -
Multidimensional SAR data analysis based on binary partition trees and the covariance matrix geometry
(2014)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, we propose the use of the Binary Partition Tree (BPT) as a region-based and multi-scale image representation to process multidimensional SAR data, with special emphasis on polarimetric SAR data. We also ... -
Multidimensional speckle noise model
(Hindawi Publishing Corporation., 2005-12-31)
Article
Accés obert -
Multitemporal SAR and polarimetric SAR optimization and classification: Reinterpreting temporal coherence
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Article
Accés obertIn multitemporal synthetic aperture radar (SAR) and polarimetric SAR (PolSAR), coherence is a capital parameter to exploit common information between temporal acquisitions. Yet, its use is limited to high coherences. This ... -
On the extension of multidimensional speckle noise model from single-look to multilook SAR imagery
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2007-02-28)
Article
Accés obertSpeckle noise represents one of the major problems when synthetic aperture radar (SAR) data are considered. Despite the fact that speckle is caused by the scattering process itself, it must be considered as a noise source ... -
On the use of the l(2)-norm for texture analysis of polarimetric SAR data
(Institute of Electrical and Electronics Engineers (IEEE), 2016-11-01)
Article
Accés obertIn this paper, the use of the l2-norm, or Span, of the scattering vectors is suggested for texture analysis of polarimetric synthetic aperture radar (SAR) data, with the benefits that we need neither an analysis of the ... -
Past and new trends in polarimetric and multidimensional SAR data Speckle noise filtering
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialSpeckle noise represents one of the main components of the multidimensional SAR signal that limit the complete exploitation of multidimensional SAR data, and polarimetric SAR data in particular. This paper consider the ...
