Results 41 to 50 of about 2,377 (186)

Fast Matrix Inversion and Determinant Computation for Polarimetric Synthetic Aperture Radar

open access: yes, 2018
This paper introduces a fast algorithm for simultaneous inversion and determinant computation of small sized matrices in the context of fully Polarimetric Synthetic Aperture Radar (PolSAR) image processing and analysis.
Cintra, R. J.   +3 more
core   +1 more source

Hierarchical Segmentation of Polarimetric SAR Images Using Heterogeneous Clutter Models [PDF]

open access: yes, 2011
International audienceIn this paper, heterogeneous clutter models are used to describe polarimetric synthetic aperture radar (PolSAR) data. The KummerU distribution is introduced to model the PolSAR clutter.
Bombrun, Lionel   +3 more
core   +4 more sources

PCCN: Polarimetric Contexture Convolutional Network for PolSAR Image Super-Resolution

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Polarimetric synthetic aperture radar (PolSAR) can acquire full-polarization information, which is the solid foundation for target scattering mechanism interpretation and utilization. Meanwhile, PolSAR image resolution is usually lower than the synthetic
Lin-Yu Dai, Ming-Dian Li, Si-Wei Chen
doaj   +1 more source

Bias Correction and Modified Profile Likelihood under the Wishart Complex Distribution

open access: yes, 2014
This paper proposes improved methods for the maximum likelihood (ML) estimation of the equivalent number of looks $L$. This parameter has a meaningful interpretation in the context of polarimetric synthetic aperture radar (PolSAR) images.
Cintra, Renato J.   +2 more
core   +1 more source

Statistical assessment of eigenvector-based target decomposition theorems in radar polarimetry [PDF]

open access: yes, 2005
© 2005 IEEE.Carlos López-Martínez, Eric Pottier and Shane R ...
Cloude, Shane Robert   +2 more
core   +2 more sources

Spatially adaptive polarimetric image despeckling using bandelet transform

open access: yesEuropean Journal of Remote Sensing, 2020
Polarimetric Synthetic Aperture Radar (PolSAR) imaging extended SAR applications by exploring the polarimetric properties of the target scatterers. Similar to SAR images, PolSAR images are prone to multiplicative speckle noise due to its coherent imaging
Roy Thankachan   +2 more
doaj   +1 more source

PolSAR Ship Detection Based on a SIFT-like PolSAR Keypoint Detector

open access: yesRemote Sensing, 2022
The detection of ships on the open sea is an important issue for both military and civilian fields. As an active microwave imaging sensor, synthetic aperture radar (SAR) is a useful device in marine supervision.
Mingfei Gu   +3 more
doaj   +1 more source

Unsupervised Classification of PolSAR Data Using a Scattering Similarity Measure Derived from a Geodesic Distance

open access: yes, 2017
In this letter, we propose a novel technique for obtaining scattering components from Polarimetric Synthetic Aperture Radar (PolSAR) data using the geodesic distance on the unit sphere.
Bhattacharya, Avik   +2 more
core   +1 more source

PolSAR Image Modulation Using a Flexible Metasurface with Independently Controllable Polarizations

open access: yesRemote Sensing
Recent advances in time-modulated metasurfaces (TMMs) have introduced approaches for controlling target features in radar imaging. These technologies enable dynamic reconstruction of scattering center locations and intensities by flexibly manipulating ...
Yuehan Wu   +4 more
doaj   +1 more source

Context-Based Max-Margin for PolSAR Image Classification

open access: yesIEEE Access, 2017
Context-based method for classification has been successfully applied in image. However, most of these classifiers work in stages. This paper presents a novel discriminative model named context-based max-margin to perform the task of classification for ...
Shuyin Zhang   +5 more
doaj   +1 more source

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