Laser & Optoelectronics Progress, Volume. 56, Issue 10, 102802(2019)
Cloud Detectionof ZY-3 Remote Sensing Images Based on Fully Convolutional Neural Network and Conditional Random Field
Figures & Tables(6)
Fig. 3. Input images and label pictures. (a) Input image 1; (b) label picture 1; (c) input image 2; (d) label picture 2
Fig. 4. Comparison of cloud detection results with different methods. (a) Input image; (b) label picture; (c) FCN+CRF; (d) MyFCN; (e) FCN-8s; (f) FCM+SVM
Table 1. Structural code mapping in improved fully convolutional neural network algorithm
View tableTable 1. Structural code mapping in improved fully convolutional neural network algorithm
From top to bottom From bottom to top Conv1_1-64 n -3×3k -‘relu’Conv1_2-64 n -3×3k -‘relu’Pool1-2×2 max pooling Deconv9-64 n -3×3k -‘relu’Conv2_1-128 n -3×3k -‘relu’Conv8_1-128 n -3×3k -‘relu’Conv2_2-128 n -3×3k -‘relu’Conv8_2-128 n -3×3k -‘relu’Pool2-2×2 max pooling Merge8 (conv2_2, Deconv8) Conv3_1-256 n -3×3k -‘relu’Deconv8-128 n -3×3k -‘relu’Conv3_2-256 n -3×3k -‘relu’Conv7_2-256 n -3×3k -‘relu’Pool3-2×2 max pooling Conv7_1-256 n -3×3k -‘relu’Conv4_1-512 n -3×3k -‘relu’Merge7 (conv3_2, Deconv7) Conv4_2-512 n -3×3k -‘relu’Conv7-256 n -3×3k -‘relu’Drop4-dropout (0.5) Conv6_2-512 n -3×3k -‘relu’Pool4-2×2 max pooling Conv6_1-512 n -3×3k -‘relu’Conv5_1-1024 n -3×3k -‘relu’Merge6 (drop4, Deconv6) Conv5_2-1024 n -3×3k -‘relu’Deconv6-512 n -3×3k -‘relu’
Table 2. Comparison of accuracy and detection time of cloud area detection by different methods
View tableTable 2. Comparison of accuracy and detection time of cloud area detection by different methods
Item FCN+CRF MyFCN FCN-8s FCM+SVM R accuracy /%97.38 90.11 83.96 83.72 R precision /%99.70 96.92 94.15 84.89 R recall /%96.77 90.36 85.35 84.61 /% 98.22 93.53 89.53 84.75 Detection time /s - 0.46 2.24 >60
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Liang Pei, Yang Liu, Lin Gao. Cloud Detectionof ZY-3 Remote Sensing Images Based on Fully Convolutional Neural Network and Conditional Random Field[J]. Laser & Optoelectronics Progress, 2019, 56(10): 102802
Paper Information
Category: Remote Sensing and Sensors
Received: Sep. 25, 2018
Accepted: Nov. 22, 2018
Published Online: Jul. 4, 2019
The Author Email: Yang Liu (764039378@qq.com)
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