Results 91 to 100 of about 2,421 (185)

Statistical Classification for Heterogeneous Polarimetric SAR Images

open access: yes, 2011
International audienceThis paper presents a general approach for high-resolution polarimetric SAR data classification in heterogeneous clutter, based on a statistical test of equality of covariance matrices. The Spherically Invariant Random Vector (SIRV)
Ferro-Famil, Laurent   +4 more
core   +3 more sources

3-D glacier subsurface characterization using SAR polarimetry [PDF]

open access: yes, 2015
The paper introduces a new polarimetric scattering model able to interpret and invert coherent polarimetric SAR (PolSAR) measurements over glaciers and ice sheets.
Hajnsek, Irena   +2 more
core   +1 more source

Composite Kernel Method for PolSAR Image Classification Based on Polarimetric-Spatial Information

open access: yesApplied Sciences, 2017
The composite kernel feature fusion proposed in this paper attempts to solve the problem of classifying polarimetric synthetic aperture radar (PolSAR) images. Here, PolSAR images take into account both polarimetric and spatial information.
Xianyuan Wang   +3 more
doaj   +1 more source

Semi-supervised classification of polarimetric SAR images using Markov random field and two-level Wishart mixture model [PDF]

open access: yes, 2019
In this work, we propose a semi-supervised method for classification of polarimetric synthetic aperture radar (PolSAR) images. In the proposed method, a 2-level mixture model is constructed by associating each component density with a unique Wishart ...
Li, Heng-Chao   +4 more
core   +1 more source

Iterative Bilateral Filtering of Polarimetric SAR Data

open access: yes, 2013
In this paper, we introduce an iterative speckle filtering method for polarimetric SAR (PolSAR) images based on the bilateral filter. To locally adapt to the spatial structure of images, this filter relies on pixel similarities in both spatial and ...
D'Hondt, Olivier   +2 more
core   +1 more source

Wavelet Operators and Multiplicative Observation Models -Application to SAR Image Time Series Analysis [PDF]

open access: yes, 2016
International audienceThis paper first provides statistical properties of wavelet operators when the observation model can be seen as the product of a deterministic piece-wise regular function (signal) and a stationary random field (noise).
Atto, Abdourrahmane   +3 more
core   +2 more sources

Built-up Area Extraction from PolSAR Imagery with Model-Based Decomposition and Polarimetric Coherence

open access: yesRemote Sensing, 2016
Built-up area extraction from polarimetric SAR (PolSAR) imagery has a close relationship with urban planning, disaster management, etc. Since the buildings have complex geometries and may be misclassified as forests due to the significant cross-polarized
Deliang Xiang   +4 more
doaj   +1 more source

A Hierarchical Extension of General Four-Component Scattering Power Decomposition

open access: yesRemote Sensing, 2017
The overestimation of volume scattering (OVS) is an intrinsic drawback in model-based polarimetric synthetic aperture radar (PolSAR) target decomposition.
Sinong Quan   +4 more
doaj   +1 more source

Nearshore Ship Detection in PolSAR Images by Integrating Superpixel-Level GP-PNF and Refined Polarimetric Decomposition

open access: yesRemote Sensing
Nearshore ship detection has significant applications in both the military and civilian domains. Compared to synthetic aperture radar (SAR), polarimetric synthetic aperture radar (PolSAR) provides richer information for analyzing the scattering ...
Shujie Wu   +6 more
doaj   +1 more source

Classification for Polsar image based on hölder divergences

open access: yesThe Journal of Engineering, 2019
(Dis)similarity measures play an important role in the interpretation of polarimetric synthetic aperture radar (PolSAR) images. Here, the authors introduce a kind of similarity measures for PolSAR images based on the concepts of Hölder pseudo-divergence ...
Ting Pan   +4 more
doaj   +1 more source

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