Author Affiliations
1School of Geographic Mapping and Urban Rural Planning, Jiangsu Normal University, Xuzhou 221116, China2State Key Laboratory of Resources and Environmental Information Systems, Institute of Geographic Sciencesand Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, Chinashow less
Fig. 1. A sketch of the task of checking the authenticity of the land type interpretation of vector patches
Fig. 2. The technical route of the check of the authenticity of the land type interpretation of vector patches
Fig. 3. Research area overview and samples
Fig. 4. Purification process of self-labeled samples
Fig. 5. Inception module
Fig. 6. Structure diagram of the Inception_v3 model
Fig. 7. Effect of learning rate attenuation coefficient on model accuracy
Fig. 8. Inception_v3 learning rate dynamic curve
Fig. 9. Training accuracy change of Inception_v3 model
Fig. 10. Optimal grid schema in authenticity check of geographic interpretation
Fig. 11. Some suspicious spots
Fig. 12. Land use types with low characteristic differentiation
Fig. 13. The results of the check of the authenticity of the land type interpretation of vector patches in Dawu Town
类别 | 训练集数量 | 验证集数量 | 测试集数量 | 合计 |
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工业用地 | 797 | 100 | 200 | 1097 | 林地 | 763 | 108 | 217 | 1088 | 耕地 | 9033 | 1214 | 2429 | 12 676 | 水体 | 665 | 94 | 189 | 948 | 住宅用地 | 2222 | 317 | 634 | 3173 | 合计 | 13 480 | 1833 | 3669 | 18 982 |
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Table 1. [in Chinese]
学习方法 | 模型 | 验证集精度 | 测试集精度 |
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迁移学习 | VGG16 | 0.916 | 0.902 | Inception_v3 | 0.966 | 0.934 |
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Table 2. Comparison of model effects used in scene classification
参数名称 | 批处理值/(个/次) | 步数/步 | 初始/学习率 | 学习率/衰减系数 | 学习率衰减速度/(步/次) |
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参数值 | 100 | 200 000 | 0.10 | 0.90 | 10 000 |
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Table 3. Super parameter information
| 精确率(P) | 召回率(R) | F1 | 准确率(OA) |
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工业用地 | 0.909 | 0.875 | 0.892 | 0.934 | 林地 | 0.965 | 0.925 | 0.945 | 耕地 | 0.929 | 0.936 | 0.933 | 水体 | 0.899 | 0.910 | 0.905 | 住宅 | 0.981 | 0.994 | 0.987 | 均值 | 0.937 | 0.928 | 0.932 |
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Table 4. Model classification results
准确率(A) | 精确率(P) | 召回率(R) |
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0.766 | 0.925 | 0.817 |
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Table 5. Effect of the check of the authenticity of the land type interpretation of vector patches