基于不同分辨率遥感影像自动提取切沟的精度分析和转换模型
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张琪,张光辉,张岩,王佳希,余双武
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Accuracy Analysis and Conversion Model of Gully Automatic Extraction based on Remote Sensing Images with Different Resolutions
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Qi Zhang,Guanhui Zhang,Yan Zhang,Jiaxi Wang,Shuangwu Yu
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表2 Google影像和GF-1影像分割精度评价
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Table 2 Segmentation accuracy evaluation of Google image and GF-1 image
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影像数据 | 尺度 | 形状 | 紧致度 | 过分割 | 欠分割 | 欧氏距离 |
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Google | 390 | 0.2 | 0.7 | 0.125 | 0.102 | 0.114 | 373 | 0.3 | 0.8 | 0.119 | 0.080 | 0.102 | 439 | 0.4 | 0.8 | 0.149 | 0.081 | 0.120 | 383 | 0.3 | 0.9 | 0.116 | 0.097 | 0.107 | 398 | 0.4 | 0.7 | 0.109 | 0.108 | 0.109 | GF-1 (2 m) | 106 | 0.1 | 0.9 | 0.166 | 0.118 | 0.144 | 87 | 0.2 | 0.8 | 0.143 | 0.135 | 0.139 | 84 | 0.3 | 0.7 | 0.150 | 0.115 | 0.134 | 95 | 0.2 | 0.9 | 0.157 | 0.120 | 0.140 | 86 | 0.3 | 0.8 | 0.173 | 0.126 | 0.151 | 94 | 0.3 | 0.9 | 0.162 | 0.113 | 0.140 | 81 | 0.4 | 0.8 | 0.152 | 0.123 | 0.138 | GF-1 (8 m) | 21 | 0.2 | 0.5 | 0.212 | 0.189 | 0.201 | 20 | 0.2 | 0.6 | 0.182 | 0.163 | 0.173 | 24 | 0.3 | 0.6 | 0.185 | 0.170 | 0.178 | 17 | 0.3 | 0.7 | 0.196 | 0.175 | 0.186 | 21 | 0.4 | 0.8 | 0.203 | 0.182 | 0.193 |
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