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Title: Unsupervised classification of scattering behaviour using hybrid-polarimetry
Authors: Panigrahi, Rajib Kumar
Mishra A.K.
Published in: IET Radar, Sonar and Navigation
Abstract: This study presents an unsupervised algorithm for classification of scattering behaviour using hybrid-polarimetric (hybrid-Pol) data. The authors present a maximum likelihood estimation-based unsupervised land cover classification algorithms for hybrid-PolSAR image. This classification technique follows from the m - δ decomposition of hybrid-Pol images. Introduction of a statistical treatment is the major contribution of the current algorithm. Performance of the hybrid- Pol algorithms have been assessed with respect to Freeman-Durden decomposition of fully polarimetric SAR data. The authors have demonstrated, using two different datasets, that proposed algorithm not only gives better overall classification performance, it is also able to classify all the three major types of scattering mechanisms, whereas the existing hybrid- PolSAR classification algorithms mostly fail to classify one of the scattering types. © The Institution of Engineering and Technology 2013.
Citation: IET Radar, Sonar and Navigation, 7(3): 270-276
Issue Date: 2013
Publisher: Institution of Engineering and Technology
Keywords: Algorithms
Maximum likelihood estimation
Classification algorithm
Classification performance
Classification technique
Fully polarimetric SAR
Land cover classification
Scattering mechanisms
Unsupervised algorithms
Unsupervised classification
Classification (of information)
ISSN: 17518784
Author Scopus IDs: 35766594200
Author Affiliations: Panigrahi, R.K., Department of Electronics and Communication Engineering, Indian Institute of Technology, Roorkee 247667, India
Mishra, A.K., Department of Electrical Engineering, University of Cape Town, Private Bag, Rondebosch, 7701, South Africa
Funding Details: 
Corresponding Author: Panigrahi, R.K.; Department of Electronics and Communication Engineering, , Roorkee 247667, India; email:
Appears in Collections:Journal Publications [ECE]

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