基于自适应流形滤波的高光谱图像分类方法 下载: 861次
Hyperspectral Image Classification Method Based on Adaptive Manifold Filtering
广东交通职业技术学院轨道交通学院, 广东 广州 510650
图 & 表
图 1. 印第安农林数据集的原始光谱和滤波结果。(a)第10个波段;(b)第80个波段;(c)第120个波段;(d)第180个波段
Fig. 1. Original spectrum and filtering results of Indian Pines data sets. (a) 10th band; (b) 80th band; (c) 120th band; (d) 180th band
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图 2. 印第安农林数据集的流形滤波系数寻优。 (a)空间偏差系数σs; (b)范围偏差系数σr
Fig. 2. Optimization for manifold filtering coefficient of Indian Pines data sets. (a) Spatial deviation coefficient σs; (b) range deviation coefficient σr
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图 3. AMF-SVM流程
Fig. 3. Flow of AMF-SVM
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图 4. 印第安农林数据集分类情况。(a)真实图像;(b) SVM,OA为80.93%;(c) SVM-PCA,OA为80.46%;(d) GBF-SVM,OA为82.82%;(e) BF-SVM,OA为88.99%;(f) GDF-SVM,OA为91.08%;(g) EPF-B-g,OA为92.99%; (h) EPF-G-g,OA为92.83%;(i) IFRF,OA为93.64%;(j) AMF-SVM,OA为95.16%
Fig. 4. Classification of Indian Pines data sets. (a) Ground truth; (b) SVM, OA is 80.93%; (c) SVM-PCA, OA is 80.46%; (d) GBF-SVM, OA is 82.82%; (e) BF-SVM, OA is 88.99%; (f) GDF-SVM, OA is 91.08%; (g) EPF-B-g, OA is 92.99%; (h) EPF-G-g, OA is 92.83%; (i) IFRF, OA is 93.64%; (j) AMF-SVM, OA is 95.16%
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图 5. 帕威亚大学数据集分类情况。(a)真实图像;(b) SVM, OA为84.80%;(c) SVM-PCA,OA为83.95%;(d) GBF-SVM,OA为85.20%;(e) BF-SVM,OA为89.03%;(f) GDF-SVM,OA为94.20%;(g) EPF-B-g,OA为91.29%;(h) EPF-G-g,OA为91.68%;(i) IFRF,OA为95.31%;(j) AMF-SVM,OA为97.92%
Fig. 5. Classification for Pavia University. (a) Ground truth;(b) SVM, OA is 84.80%; (c) SVM-PCA, OA is 83.95%; (d) GBF-SVM, OA is 85.20%; (e) BF-SVM, OA is 89.03%; (f) GDF-SVM, OA is 94.20%; (g) EPF-B-g, OA is 91.29%; (h) EPF-G-g, OA is 91.68%; (i) IFRF, OA is 95.31%; (j) AMF-SVM, OA is 97.92%
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图 6. 不同训练样本比例分类后OA和Kappa系数折线图。 (a)印第安农林;(b)帕维亚大学
Fig. 6. Charts of OA and Kappa coefficient with different training samples. (a) Indian Pines; (b) Pavia University
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图 7. 分类算法的OA和Kappa系数。(a)印第安农林1%的训练样本;(b)帕维亚大学0.1%的训练样本
Fig. 7. OA and Kappa coefficient for different classification methods. (a) 1% training sample for Indian Pins; (b) 0.1% training sample for Pavia University
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图 8. 自适应流形滤波的高光谱分类寻优。 (a)印第安农林;(b)帕维亚大学
Fig. 8. Optimization for hyperspectral classification of adaptive manifold filtering. (a) Indian Pins; (b) Pavia University
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表 1印第安农林数据集图像分类数据统计
Table1. Classification data statistics of Indian Pines data sets
Groundtruth | SumsampleNo. | TrainsampleNo. /% | TestsampleNo. /% | SVM /% | SVM-PCA /% | GBF-SVM /% | BF-SVM /% | GDF-SVM /% | EPF-B-g /% | EPF-G-g /% | IFRF /% | AMF-SVM /% |
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Alfalfa | 54 | 7 | 93 | 83.57 | 78.89 | 88.83 | 91.86 | 91.10 | 95.58 | 94.78 | 91.34 | 92.24 | Corn-no till | 1434 | 7 | 93 | 71.50 | 71.08 | 76.46 | 84.28 | 87.25 | 91.57 | 91.39 | 91.23 | 96.95 | Corn-min till | 834 | 7 | 93 | 70.63 | 72.02 | 70.38 | 88.93 | 91.67 | 87.34 | 87.54 | 84.64 | 97.90 | Corn | 234 | 7 | 93 | 44.19 | 41.48 | 51.61 | 57.98 | 66.21 | 62.57 | 61.39 | 86.22 | 87.16 | Grass/pasture | 497 | 7 | 93 | 89.90 | 89.12 | 88.96 | 92.29 | 93.60 | 95.48 | 94.82 | 93.96 | 93.58 | Grass/trees | 747 | 7 | 93 | 94.79 | 94.63 | 95.15 | 96.79 | 96.86 | 99.79 | 99.50 | 98.10 | 97.40 | Grass/pasture-mowed | 26 | 7 | 93 | 53.91 | 53.27 | 66.50 | 62.45 | 64.31 | 54.19 | 62.80 | 88.13 | 76.67 | Hay-windrowed | 489 | 7 | 93 | 97.16 | 96.18 | 99.56 | 98.33 | 97.47 | 100.0 | 100.0 | 99.58 | 99.16 | Oats | 20 | 7 | 93 | 46.99 | 47.52 | 75.94 | 57.46 | 62.42 | 22.69 | 39.34 | 89.47 | 94.07 | Soybeans-no till | 968 | 7 | 93 | 69.29 | 68.28 | 67.89 | 83.05 | 84.41 | 87.59 | 86.21 | 87.14 | 92.83 | Soybeans-min till | 2468 | 7 | 93 | 85.12 | 84.43 | 86.88 | 91.70 | 93.68 | 97.71 | 97.51 | 95.96 | 98.51 | Soybeans-clean till | 614 | 7 | 93 | 79.40 | 78.41 | 74.90 | 87.71 | 90.03 | 95.67 | 95.88 | 95.24 | 96.58 | Wheat | 212 | 7 | 93 | 95.98 | 96.53 | 97.00 | 97.38 | 97.58 | 99.95 | 99.60 | 99.34 | 98.38 | Woods | 1294 | 7 | 93 | 97.67 | 97.97 | 98.19 | 98.08 | 98.59 | 99.94 | 99.81 | 98.84 | 99.01 | Bldg-Grass-Tree | 380 | 7 | 93 | 45.94 | 43.59 | 68.51 | 64.42 | 74.86 | 60.16 | 61.26 | 91.16 | 78.77 | Stone-steeltowers | 95 | 7 | 93 | 76.42 | 76.16 | 71.16 | 76.42 | 81.82 | 93.35 | 97.73 | 83.37 | 82.04 | OA /% | - | - | - | 80.93 | 80.46 | 82.82 | 88.99 | 91.08 | 92.99 | 92.83 | 93.62 | 96.16 | Kappa | - | - | - | 78.12 | 77.58 | 80.28 | 87.41 | 89.81 | 91.96 | 91.78 | 92.11 | 95.62 |
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表 2帕维亚大学数据集图像分类数据统计
Table2. Classification statistics of Pavia University data sets
Groundtruth | Sum | Train /% | Test /% | SVM /% | SVM-PCA /% | GBF-SVM /% | BF-SVM /% | GDF-SVM /% | EPF-B-g /% | EPF-G-g /% | IFRF /% | AMF-SVM /% |
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Asphalt | 6641 | 2 | 98 | 87.84 | 86.19 | 88.74 | 88.23 | 94.98 | 98.07 | 97.49 | 97.70 | 98.68 | Meadows | 18649 | 2 | 98 | 95.81 | 95.99 | 96.13 | 97.03 | 98.32 | 99.98 | 99.91 | 99.34 | 99.79 | Gravel | 2099 | 2 | 98 | 57.87 | 48.76 | 54.51 | 65.01 | 76.07 | 72.60 | 69.39 | 86.68 | 90.63 | Trees | 3064 | 2 | 98 | 88.17 | 85.01 | 89.21 | 91.98 | 96.19 | 91.84 | 92.26 | 92.78 | 96.56 | Metalsheets | 1345 | 2 | 98 | 98.34 | 98.72 | 98.84 | 97.54 | 98.38 | 99.85 | 99.94 | 99.02 | 99.40 | Soil | 5029 | 2 | 98 | 54.33 | 54.96 | 56.21 | 77.91 | 88.34 | 60.74 | 60.32 | 99.86 | 97.59 | Bitumen | 1330 | 2 | 98 | 64.64 | 64.79 | 65.89 | 70.50 | 82.89 | 81.27 | 86.38 | 96.37 | 95.12 | Bricks | 3682 | 2 | 98 | 78.97 | 79.41 | 77.88 | 80.18 | 91.43 | 98.47 | 95.95 | 73.13 | 97.05 | Shadows | 947 | 2 | 98 | 89.33 | 84.29 | 90.64 | 87.82 | 93.37 | 95.13 | 93.20 | 83.10 | 94.49 | OA /% | - | - | - | 84.80 | 83.96 | 85.20 | 89.03 | 94.20 | 92.32 | 91.92 | 95.31 | 98.17 | Kappa | - | - | - | 79.47 | 78.31 | 80.00 | 85.34 | 92.29 | 89.57 | 89.04 | 93.67 | 97.57 |
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表 3自适应流形滤波的高光谱分类数据统计
Table3. Hyperspectral classification data statistics of adaptive manifold filtering
Index | n | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
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Tree height | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
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Tree node | 3 | 7 | 15 | 31 | 63 | 127 | 255 | 511 | 1023 | Indian Pines | OA /% | 95.61 | 95.67 | 95.97 | 95.61 | 95.80 | 96.15 | 96.04 | 96.16 | 96.13 | Kappa | 94.98 | 95.05 | 95.39 | 94.99 | 95.20 | 95.61 | 95.47 | 95.62 | 95.58 | Pavia | OA /% | 98.02 | 98.19 | 98.14 | 98.20 | 98.08 | 98.17 | 98.40 | 98.29 | 98.17 | Kappa | 97.37 | 97.60 | 97.53 | 97.62 | 97.45 | 97.58 | 97.88 | 97.73 | 97.57 |
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廖建尚, 王立国, 郝思媛. 基于自适应流形滤波的高光谱图像分类方法[J]. 激光与光电子学进展, 2018, 55(4): 041010. Jianshang Liao, Liguo Wang, Siyuan Hao. Hyperspectral Image Classification Method Based on Adaptive Manifold Filtering[J]. Laser & Optoelectronics Progress, 2018, 55(4): 041010.