Polarimetric SAR data classification using scattering models and neural networks

Yosuke Ito; Sigeru Omatu

doi:10.1117/12.295602

22 December 1997 Polarimetric SAR data classification using scattering models and neural networks

Yosuke Ito, Sigeru Omatu

Proceedings Volume 3217, Image Processing, Signal Processing, and Synthetic Aperture Radar for Remote Sensing; (1997) https://doi.org/10.1117/12.295602
Event: Aerospace Remote Sensing '97, 1997, London, United Kingdom

Abstract

We consider a polarimetric SAR data classification method which includes scattering models. The proposed method is an integrated neural network classifier composed of two classification procedures. First, SAR data is pre-classified into three scattering classes by individually computing the Mueller matrix and Stokes vector. Second, we construct a neural network appropriate to each scattering class in order to classify the SAR data into realistic categories. Either the competitive or back-propagation neural network is employed as a classifier. The former learns by the LVQ1 and LVQ2.1 algorithms. As a result of the procedure using SIR-C C band data, pixels in the water category will be classified almost exclusively into the odd class. The even class includes only factory and urban categories. Therefore, it can be concluded that the neural classifier contains a smaller network and a more efficient learning process since it is applied to more limited category classifications. The neural network classifier employs an eight-dimension feature vector with backscattering coefficients and pseudo relative phases between HH and VV from the L and C bands. Average accuracy of the competitive neural network is slightly higher than that of the back-propagation network.

Citation Download Citation

Yosuke Ito and Sigeru Omatu "Polarimetric SAR data classification using scattering models and neural networks", Proc. SPIE 3217, Image Processing, Signal Processing, and Synthetic Aperture Radar for Remote Sensing, (22 December 1997); https://doi.org/10.1117/12.295602

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