Results 11 to 20 of about 6,889,850 (329)

Improved Threat Detection in Walk-Through Security Scanning Using an Optimized Polarimetric Target Decomposition Method

open access: yesIEEE Journal of Microwaves, 2023
Reliable and convenient walk-through security scanning, which doesn't separate people or impede their movement, is an extremely challenging task. In this paper, a novel approach for a security check with an overhead observation and a polarimetric ...
Konstantin Root   +4 more
doaj   +2 more sources

A Hybrid Polarimetric Target Decomposition Algorithm with Adaptive Volume Scattering Model

open access: yesRemote Sensing, 2022
Previous studies have shown that scattering mechanism ambiguity and negative power issues still exist in model-based polarization target decomposition algorithms, even though deorientation processing is implemented.
Xiujuan Li   +6 more
doaj   +2 more sources

Model-Based Polarimetric Target Decomposition With Power Redistribution for Urban Areas

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Polarimetric decomposition of oriented buildings is challenging due to their variable orientation angles and structures. Both vegetated and oriented built-up areas generate the HV component namely cross-polarized scattering, leading to an overestimation ...
Canbin Hu   +4 more
doaj   +2 more sources

Decomposition Model With Background Dictionary Learning for Hyperspectral Target Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Representation-based target detectors for hyperspectral imagery have attracted considerable attention in recent years. However, their detection performance is still unsatisfactory due to the independent manner of the recovery process on each test pixel ...
Tongkai Cheng, Bin Wang
doaj   +2 more sources

The Effect of Topography on Target Decomposition of Polarimetric SAR Data

open access: yesRemote Sensing, 2015
Polarimetric target decomposition enables the interpretation of radar images more easily, mostly based on physical assumptions, i.e., fitting physically-based scattering models to the polarimetric SAR observations.
Sang-Eun Park
doaj   +2 more sources

Independent component analysis within polarimetric incoherent target decomposition

open access: yesIEEE International Geoscience and Remote Sensing Symposium, 2013
International audienceThis paper represents a part of our efforts to generalize polarimetric incoherent target decomposition to the level of BSS techniques by introducing the ICA method instead of the conventional eigenvector decomposition.
Besic, Nikola   +5 more
core   +3 more sources

Soil Moisture Inversion Via Semiempirical and Machine Learning Methods With Full-Polarization Radarsat-2 and Polarimetric Target Decomposition Data: A Comparative Study

open access: yesIEEE Access, 2020
In this article, surface soil moisture was retrieved from Radarsat-2 and polarimetric target decomposition data by using semiempirical models and machine learning methods.
Hüseyın Acar   +2 more
semanticscholar   +1 more source

A ViSAR Shadow-Detection Algorithm Based on LRSD Combined Trajectory Region Extraction

open access: yesRemote Sensing, 2023
Shadow detection is a new method for video synthetic aperture radar moving target indication (ViSAR-GMTI). The shadow formed by the target occlusion will reflect its real position, preventing the defocusing or offset of the moving target from making it ...
Zhongzheng Yin, Mingjie Zheng, Yuwei Ren
doaj   +1 more source

Spectral tensor-train decomposition [PDF]

open access: yes, 2015
The accurate approximation of high-dimensional functions is an essential task in uncertainty quantification and many other fields. We propose a new function approximation scheme based on a spectral extension of the tensor-train (TT) decomposition.
Bigoni, Daniele   +2 more
core   +2 more sources

Scattering Mechanism Extraction by a Modified Cloude-Pottier Decomposition for Dual Polarization SAR

open access: yesRemote Sensing, 2015
Dual polarization is a typical operational mode of polarimetric synthetic aperture radar (SAR). However, few studies have considered the scattering mechanism extraction of dual-polarization SARs.
Kefeng Ji, Yonghui Wu
doaj   +1 more source

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