基于字典学习光谱解混的绿藻亚像元面积估计
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张贻然, 潘斌, 徐夏, 朱俊峰
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Subpixel-level area estimation of green algae based on spectral unmixing in dictionary learning
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ZHANG Yiran, PAN Bin, XU Xia, ZHU Junfeng
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表2 不同方法的定量对比结果
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Tab.2 Quantative results by different methods ( km2)
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| 序号 | 真值 | N-FINDR | NDVI | VB-FAH | IGAG | gTV | SeCoDe | DLSU | | 0 | 0.1 | 0 | 0.1 | 0 | 5 | 0 | 0.1 | | 1 | 1 251.2 | 3 039.2 | 8 700.8 | 4 373.5 | 5 219.5 | 234.3 | 8 700.8 | 6 258.3 | 917.1 | 1 287.1 | 1 278.1 | 375.4 | | 2 | 2 739.0 | 8 181.5 | 4 147.3 | 5 090.8 | 221.8 | 8 181.5 | 6 414.8 | 398.1 | 1 170.4 | 1 047.5 | 428.3 | | 3 | 157.6 | 525.0 | 2 131.8 | 874.3 | 1 481.8 | 16.5 | 2 131.8 | 1 876.0 | 308.0 | 678.9 | 2 077.5 | 123.4 | | 4 | 1 754.3 | 1 917.3 | 879.8 | 1 323.5 | 26.5 | 1 917.3 | 1 650.8 | 194.0 | 684.7 | 1 256.5 | 162.5 |
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