Results 191 to 200 of about 42,857 (235)

Retrieval of Polarimetric Azimuthal Angular Characteristics via the Application of Target Decomposition to Spectral Domain Circular SAR Images

IEEE Transactions on Geoscience and Remote Sensing, 2019
In this paper, we discuss the application of polarimetric target decomposition (TD) theorems to circular synthetic aperture radar (CSAR) images to retrieve the polarimetric azimuthal angular characteristics of the targets. In CSAR systems, radar-carrying
Takuma Watanabe, Hiroyoshi Yamada, Yuto Tokutake, R. Sato, Y. Yamaguchi   +4 more
semanticscholar   +1 more source

The effect of orientation angle compensation on polarimetric target decompositions

2009 IEEE International Geoscience and Remote Sensing Symposium, 2009
The orientation angle of scattering media affects the polarimetric radar signatures. This paper investigates the effect of orientation compensation on polarimetric target decompositions including Pauli decomposition, Freeman and Durden decomposition and Yamaguchi decomposition.
Jong-Sen Lee, Thomas L. Ainsworth, Kun-Shan Chen   +2 more
openaire   +1 more source

Polarimetric target matrix decompositions and the 'Karhunen-Loeve expansion'

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293), 2003
This contribution is concerned with polarimetric target matrix decomposition theorems for incoherent backscattering from distributed targets described by complex random 2/spl times/2 Sinclair matrices. The polarimetric covariance matrix concept is used to establish connections between the target decomposition theorems of Cloude and Barnes-Holm and the ...
openaire   +1 more source

Target decomposition and polarimetric radar applied to concealed threat detection

SPIE Proceedings, 2013
Target decomposition is of interest to the security and defence community as it enables data sets to be reduced to their principal identifying components as a pre-processor to running pattern recognition algorithms. An investigation into the application of target decomposition theory for concealed threat detection is presented.
Dean O'Reilly, Nicholas Bowring, Nacer Ddine Rezgui, David Andrews   +3 more
openaire   +1 more source

Target Detection and Characterization using H/alpha Decomposition and Polarimetric Signatures

2006 2nd International Conference on Information & Communication Technologies, 2006
Recently, the characterization and classification of terrain-cover using polarimetric SAR data has been extensively investigated and reported on (J.S.Lee, 1994). In this paper we re-examine the entropy-alpha approach (J.S.Lee, 1999) to radar polarimetry and show how the basic method may be augmented by the addition of the polarimetric signature ...
M. Ouarzeddine, B. Souissi, A. Belhadj-Aissa   +2 more
openaire   +1 more source

A unified three-component scattering model for polarimetric coherent target decomposition

International Journal of Remote Sensing, 2011
In this article, first, the properties of the symmetric scattering space are examined based on the representation of the maximum symmetric scattering component proposed by Touzi. The symmetric scattering unit disc in the complex plane is mapped to a more intuitive unit sphere representation, and a new simpler classification method for symmetric ...
Hong-Zhong Li, Chao Wang, Hong Zhang, Lin Liu   +3 more
openaire   +1 more source

Unmixing Polarimetric Radar Images Based on Land Cover Type Identified by Higher Resolution Optical Data Before Target Decomposition: Application to Forest and Bare Soil

IEEE Transactions on Geoscience and Remote Sensing, 2018
Extracting information from a polarimetric radar representation usually consists in decomposing it with target decomposition algorithms. This first step can be seen as a geometric analysis of the polarimetric information: the identification of physical ...
S. Giordano, G. Mercier, J. Rudant
semanticscholar   +1 more source

Improved Four-Component Model-Based Target Decomposition for Polarimetric SAR Data

IEEE Geoscience and Remote Sensing Letters, 2012
An improved four-component model-based target decomposition scheme for polarimetric synthetic aperture radar data is proposed in this letter. The reason for the emergence of the negative powers in the Yamaguchi decomposition has been analyzed, and three corresponding additional steps are added in the proposed scheme.
Zili Shan, Chao Wang, Hong Zhang, Wentao An   +3 more
openaire   +1 more source

Polsar Change Detection Based on Superpixel Segmentation and Polarimetric Decomposition

IEEE International Geoscience and Remote Sensing Symposium
Change detection is one of the most important applications of Polarimetric Synthetic Aperture Radar (PolSAR) images. Traditional PolSAR change detection methods operate at the pixel level, but the speckle noise inherent in SAR images greatly affects the ...
Nengcai Li, Deliang Xiang, Huaiyue Ding, Jianda Cheng, Yi Su   +4 more
semanticscholar   +1 more source

Multi-resolution target scattering decomposition for urban feature characterization using polarimetric SARs

2009 IEEE International Geoscience and Remote Sensing Symposium, 2009
Urban areas include features (buildings) of coherent scattering as well as areas such as parks that manifest partially coherent scattering due to the significant natural variability in the scattering properties. While high- resolution coherent target decomposition(CTD) can be used for characterization of buildings, incoherent target scattering ...
R. Touzi, A. Bhattacharya, K. Mattar
openaire   +1 more source