A Fast Recognition Method for Space Targets in ISAR Images Based on Local and Global Structural Fusion Features with Lower Dimensions

Figure 20

Distribution of the features in a 3-dimensional space: (a) the 3-D distribution of the T3 trace feature; (b) the 3-D distribution of the LBP feature; (c) the 3-D distribution of the fusion feature T3_ LBP (3-dimensional fusion features which have the best classification performance); (d) the 3-D distribution of T1 trace features (trace features which have the best classification performance); (e) the distribution of the LBP feature (LBP features which have the best classification performance).

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