Quantitative comparison

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Experiment two
• Comparison of tree age classification • For forest, however, the scattering mechanisms from trees are much ore complex. Leaves, branches, trunks and the ground create volumetric scatterings of single, bounce, double bounces, and multiple bounces, especially in P band. The L band has less penetration than P band , and its backscattered signal tends to saturate in older tree parcels, for C band, the dominating scattering is mainly from treetops, resulting in poor discrimination for tree ages.
SAR Image Classification
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Preprocessing
• The Flevoland data were originally processed with four-look average in stokes matrix; • All three bands of polarimetric data were speckle filtered by applying the polarimetric property preserving filter using a standard deviation to men ratio of 0.5;
Single frequency
Multi frequency
Dual polarization Complex SAR data
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ቤተ መጻሕፍቲ ባይዱ
极化SAR目标识别与分类
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E. Dual intensity SAR data classifier
• The ML classifier is applied directly to the PDF • Ignoring phase • A distance measure derived is a more complex form, the distance measure does not provide a computational advantage
Author: Jong-Sen, Lee 2001. Method: complex wishart distribution And Maximum likehood (ML)
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formulas
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B. Multifrequency fully polarimetric SAR data classifier
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Classification 1
Name: Quantitative comparison of classification capability: Fully polar metric Versus Dual and Single-polarization SAR