Sentinel-1/2影像在兰州北山削山造地范围识别中的应用
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牛全福, 雷姣姣, 刘博, 王浩, 张瑞珍, 王刚
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Application of Sentinel-1/2 imagery in identifying hills cutting and land reclaiming in the Beishan Mountain of Lanzhou
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NIU Quanfu, LEI Jiaojiao, LIU Bo, WANG Hao, ZHANG Ruizhen, WANG Gang
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表4 分类结果精度统计
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Tab.4 Accuracy statistics of classification results for each category (%)
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| 地类 | 评价
指标 | 组合方案 | | 光谱 | 光谱
+指数 | 光谱
+纹理 | 光谱
+地形 | 光谱
+极化 | 全部
特征 | 优化
特征 | | 削山造地 | PA | 84.2 | 89.0 | 85.0 | 80.0 | 79.1 | 86.5 | 92.1 | | UA | 71.4 | 84.0 | 80.0 | 75.0 | 76.0 | 83.2 | 92.8 | | 建筑 | PA | 85.0 | 80.0 | 81.1 | 83.1 | 75.3 | 76.4 | 83.7 | | UA | 75.7 | 80.4 | 85.6 | 75.2 | 80.0 | 71.3 | 83.2 | | 水体 | PA | 90.0 | 84.4 | 83.0 | 85.0 | 82.6 | 83.9 | 90.4 | | UA | 83.2 | 87.4 | 82.3 | 89.0 | 86.6 | 85.4 | 90.9 | | 草地 | PA | 70.4 | 70.0 | 72.0 | 72.8 | 76.5 | 75.0 | 81.3 | | UA | 68.3 | 67.0 | 88.0 | 67.6 | 82.4 | 75.0 | 77.7 | | 森林 | PA | 75.0 | 85.0 | 69.6 | 83.0 | 85.1 | 83.1 | 76.1 | | UA | 75.0 | 85.2 | 68.0 | 78.7 | 82.2 | 82.2 | 77.2 | | 裸地 | PA | 72.6 | 87.0 | 69.9 | 78.8 | 71.6 | 79.5 | 82.9 | | UA | 69.7 | 72.0 | 77.9 | 76.2 | 66.3 | 74.8 | 81.4 | | 耕地 | PA | 69.9 | 76.6 | 77.7 | 81.4 | 85.1 | 82.02 | 78.3 | | UA | 71.3 | 88.2 | 73.6 | 74.4 | 81.5 | 78.7 | 81.1 |
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