激光与光电子学进展, 2019, 56 (21): 212802, 网络出版: 2019-11-02   

基于聚类降维和视觉注意机制的高光谱影像分类 下载: 888次

Hyperspectral Image Classification Based on Clustering Dimensionality Reduction and Visual Attention Mechanism
作者单位
1 河南测绘职业学院空间信息工程系, 河南 郑州 450015
2 河南大学环境与规划学院, 河南 开封 475004
图 & 表

图 1. Indian高光谱数据集。(a)伪彩色合成图像;(b)被标记的数据;(c)分类图例

Fig. 1. Indian hyperspectral image dataset. (a) False-color composite imge; (b) labeled data; (c) legends of classification

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图 2. Pavia高光谱数据集。(a)伪彩色合成图像;(b)被标记的数据;(c)分类图例

Fig. 2. Pavia hyperspectral image dataset. (a) False-color composite imge; (b) labeled data; (c) legends of classificatin

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图 3. 高光谱数据集的波段互信息矩阵。(a) Indian数据集;(b) Pavia数据集

Fig. 3. Band mutual information matrix of hyperspectral datasets. (a) Indian dataset; (b) Pavia dataset

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图 4. 单一波段显著性映射结果。(a) Indian数据集优选的波段122及其显著性映射;(b) Indian数据集剔去的波段1及其显著性映射;(c) Pavia数据集优选的波段94及其显著性映射;(d) Pavia数据集剔去的波段1及其显著性映射

Fig. 4. Results of saliency mapping of single band. (a) Band 122 and its saliency mapping selected by Indian dataset; (b) band 1 and its saliency mapping removed by Indian dataset; (c) band 94 and its saliency mapping selected by Pavia dataset; (d) band 1 and its saliency mapping removed by Pavia dataset

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表 1Indian数据集上各方法分类精度评价指标对比(黑体表示最优)

Table1. Evaluation indices of classification accuracy of different methods on Indian dataset (best results are highlighted in bold)

ClassClass nameSVMPCAEAPHSD5-SVMHSD10-SVM
1Alfalfa0.82610.97060.95651.00000.9130
2Corn-notill0.66100.68080.75180.85040.8578
3Corn-mintill0.55840.66500.85630.94160.8718
4Corn0.33330.72000.91790.71560.8711
5Grass-pasture0.81700.83440.93160.90410.8388
6Grass-trees0.94080.70470.96140.84270.8990
7Grass-pasture-mowed0.85710.87500.92860.78570.9286
8Hay-windrowed0.83480.99140.99780.96041.0000
9Oats1.00001.00001.00001.00001.0000
10Soybean-notill0.69990.79170.77490.86570.8342
11Soybean-mintill0.79160.60250.73280.93570.9400
12Soybean-clean0.47420.77800.93430.88810.7336
13Wheat0.88720.98450.97710.91280.9436
14Woods0.93340.87710.96920.99920.9992
15Buildings-grass-trees-drives0.35690.89300.76400.92920.9373
16Stone-steel-towers0.93480.97530.96830.95651.0000
Kappa0.69440.71260.81890.89700.8878
OA0.73430.74300.84050.90990.9018
AA0.74420.83400.90140.90550.9105
Time/s16.703.294.215.706.99

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表 2Pavia数据集上各方法分类精度评价指标对比(黑体表示最优)

Table2. Evaluation indices of classification accuracy of different methods on Pavia dataset (best results are highlighted in bold)

ClassClass nameSVMPCAEAPHSD5-SVMHSD10-SVM
1Asphalt0.93190.95410.97180.97830.9850
2Meadows0.97950.95830.98100.99380.9950
3Gravel0.77080.68500.95790.97860.9852
4Trees0.93340.83240.90430.86270.8597
5Metal sheets0.99150.99480.98750.99580.9815
6Bare soil0.87870.71530.94900.99190.9922
7Bitumen0.84920.58030.99550.99900.9888
8Bricks0.88920.78160.98420.98480.9932
9Shadows0.99870.99890.99910.97830.9560
Kappa0.91440.82600.96090.97360.9752
OA0.93570.86800.97050.98010.9813
AA0.91360.83370.97000.97370.9707
Time/s84.3216.2318.249.7712.25

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曾朝平, 琚丽君, 张建辰. 基于聚类降维和视觉注意机制的高光谱影像分类[J]. 激光与光电子学进展, 2019, 56(21): 212802. Chaoping Zeng, Lijun Ju, Jianchen Zhang. Hyperspectral Image Classification Based on Clustering Dimensionality Reduction and Visual Attention Mechanism[J]. Laser & Optoelectronics Progress, 2019, 56(21): 212802.

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