林地山区滑坡遥感的最优融合方法及应用

石育青,梁继,李云星,孟赛颖,石倩

Optimum Fusion Method and Application of Landslide Remote Sensing in Mountainous Woodland Areas

Yuqing Shi,Ji Liang,Yunxing Li,Saiying Meng,Qian Shi

表3 融合影像质量评价结果

Table 3 Evaluation results of fusion image quality

数据 波段 均值 标准差 信息熵 平均梯度 相关系数 扭曲程度 峰值信噪比 Sentinel-2A B2 258.65 178.67 1.27 56.43 1.00 —— —— B3 442.20 241.09 1.74 78.05 1.00 —— —— B4 417.30 306.18 1.70 82.10 1.00 —— —— B8 2 109.70 796.63 3.60 312.91 1.00 —— —— PCA-VH B2 258.72 172.50 1.31 54.92 0.78 84.49 55.05 B3 442.24 229.41 1.66 71.37 0.59 154.57 49.80 B4 417.50 296.06 1.84 82.22 0.81 136.59 50.88 B8 2 109.70 805.04 2.94 168.39 -0.04 841.45 35.07 PCA-VV B2 258.70 175.87 1.31 55.11 0.79 82.75 55.08 B3 442.22 235.24 1.65 71.88 0.61 151.38 49.83 B4 417.48 302.14 1.83 82.52 0.81 133.78 50.92 B8 2 109.70 800.39 2.81 170.31 -0.04 824.03 35.11 PCA-VH-DB B2 258.78 171.05 1.41 55.65 0.78 94.56 54.98 B3 442.25 226.99 1.86 73.88 0.58 173.09 49.72 B4 417.85 292.44 2.02 83.38 0.80 152.64 50.83 B8 2 109.70 807.14 3.67 218.32 -0.06 942.35 35.00 PCA-VV-DB B2 259.06 177.96 1.44 55.63 0.79 91.70 55.10 B3 442.79 238.98 1.89 74.03 0.61 167.83 49.84 B4 418.33 305.11 2.03 83.55 0.82 147.98 50.95 B8 2 110.90 793.18 3.65 218.37 -0.05 915.43 35.10 GS-VH B2 260.23 173.36 1.46 57.31 0.24 154.47 49.62 B3 443.41 233.78 1.70 69.44 0.08 231.64 46.19 B4 421.05 295.50 2.09 89.45 0.31 254.13 45.36 B8 2 105.70 815.55 3.35 223.49 0.15 771.01 35.91 GS-VV B2 260.18 176.60 1.46 57.99 0.27 151.07 49.72 B3 443.39 237.75 1.70 70.35 0.12 225.70 46.30 B4 420.90 302.31 2.07 90.49 0.34 248.17 45.46 B8 2 105.60 801.37 3.29 223.99 0.16 750.83 36.02 GS-VH-DB B2 262.53 169.04 1.57 58.26 0.23 171.17 49.64 B3 444.20 231.73 1.96 75.00 0.06 260.16 46.12 B4 426.77 283.36 2.19 90.01 0.29 280.61 45.42 B8 2 108.80 809.65 3.68 243.63 0.14 853.84 35.87 GS-VV-DB B2 263.79 173.60 1.60 58.41 0.30 164.52 49.93 B3 446.30 236.19 1.98 74.70 0.15 248.79 46.44 B4 428.69 294.43 2.23 90.65 0.37 269.48 45.73 B8 2 106.70 782.13 3.64 244.60 0.15 823.00 36.08 NNDiffuse-VH B2 264.35 276.06 1.25 62.32 0.64 13.38 49.78 B3 449.61 327.00 1.74 85.52 0.70 17.28 49.01 B4 425.99 408.72 1.70 93.17 0.73 18.66 47.45 B8 2 160.50 1599.60 3.59 391.22 0.47 86.78 33.34 NNDiffuse-VV B2 281.77 439.48 1.30 98.22 0.41 30.61 44.28 B3 475.45 602.57 1.79 138.42 0.38 42.92 41.39 B4 458.34 801.01 1.75 159.91 0.40 50.75 39.01 B8 2 284.40 2646.40 3.64 641.98 0.26 209.96 28.16 NNDiffuse-VH-DB B2 258.15 175.94 1.25 52.04 1.00 4.10 79.32 B3 441.70 237.80 1.73 72.59 1.00 5.47 77.48 B4 416.80 302.81 1.69 76.90 1.00 5.58 76.71 B8 2 109.20 782.83 3.58 293.23 1.00 21.03 66.54 NNDiffuse-VV-DB B2 258.15 175.86 1.25 51.90 1.00 4.22 79.08 B3 441.71 237.76 1.73 72.46 1.00 5.56 77.38 B4 416.80 302.74 1.69 76.76 1.00 5.68 76.58 B8 2 109.20 782.83 3.58 292.96 1.00 21.15 66.56