Laser & Optoelectronics Progress, Volume. 60, Issue 16, 1610010(2023)
Hyperspectral Image Classification Based on Hyperpixel Segmentation and Convolutional Neural Network
Figures & Tables(13)
Fig. 2. Pseudo-color image and ground object truth map of the WHU-Hi-Longkou dataset. (a) Pseudo-color image; (b) real image
Fig. 3. Pseudo-color image and ground object truth map of the WHU-Hi-HongHu dataset. (a) Pseudo-color image; (b) real image
Fig. 4. Spectral information segmentation results on WHU-Hi-Longkou dataset. (a) KNN; (b) SVM; (c) RF; (d) CNN; (e) ground truth
Fig. 5. Spectral information segmentation results on WHU-Hi-HongHu dataset. (a) KNN; (b) SVM; (c) RF; (d) CNN; (e) ground truth
Fig. 6. Segmentation results of different hyperpixel algorithms on WHU-Hi-Longkou dataset. (a) SLICO; (b) PCA-SLICO; (c) SLIC; (d) PCA-SLIC; (e) MSLIC; (f) PCA-MSLIC
Fig. 7. Segmentation results of different hyperpixel algorithms on WHU-Hi-HongHu dataset. (a) SLICO; (b) PCA-SLICO; (c) SLIC; (d) PCA-SLIC; (e) MSLIC; (f) PCA-MSLIC
Fig. 8. Classification results of different methods on WHU-Hi-Longkou dataset. (a) PMS-KNN; (b) PMS-SVM; (c) PMS-RF;(d) PMS-CNN; (e) grouth truth
Fig. 9. Classification results of different methods on WHU-Hi-Longkou dataset. (a) PMS-KNN; (b) PMS-SVM; (c) PMS-RF;(d) PMS-CNN; (e) grouth truth
Table 1. CA of different algorithms on WHU-Hi-Longkou dataset
View tableTable 1. CA of different algorithms on WHU-Hi-Longkou dataset
Category KNN SVM RF CNN Corn 94.93 98.41 88.53 98.45 Cotton 76.80 92.02 76.80 95.45 Sesame 82.96 98.25 82.21 98.70 Round leaf soybean 69.00 89.60 57.16 90.83 Long leaf soybean 88.30 96.05 69.80 97.91 Rice 99.24 99.48 64.20 98.68 Wave 99.87 99.88 92.18 99.83 Houses and roads 87.82 95.37 82.34 94.58 Mixed weeds 85.28 96.13 74.18 97.41 OA /% 89.88 96.77 82.51 97.18 Kappa coefficient /% 86.97 95.78 78.00 96.31
Table 2. CA of different algorithms on WHU-Hi-HongHu dataset
View tableTable 2. CA of different algorithms on WHU-Hi-HongHu dataset
Category KNN SVM RF CNN Roof 84.37 76.02 78.67 92.17 Road 81.97 83.56 83.39 78.81 Exposed soil 63.15 74.45 65.50 73.66 Cotton 49.90 67.64 62.75 87.36 Cotton wood 60.21 78.70 68.05 64.24 Rape 66.54 81.40 72.56 92.47 Chinese cabbage 45.33 53.10 46.34 49.05 Pakchoi 38.80 39.56 20.93 58.84 Cabbage 88.38 89.18 84.81 88.28 Mustard tuber 38.70 47.20 40.47 66.60 Cauliflower 31.90 40.22 30.36 60.92 Green vegetables 56.95 54.81 54.33 61.74 Small green vegetables 45.56 49.12 52.04 71.80 Asparagus lettuce 61.54 56.82 44.33 50.75 Lettuce 87.30 80.42 73.91 82.85 Film is covered with lettuce 76.67 69.85 80.14 82.85 Thin film covered with lettuce 78.53 77.82 70.30 75.83 Carrot 68.37 73.40 68.31 84.24 Ternip 68.68 75.56 71.66 79.01 Garlic bolt 77.13 80.36 76.20 76.94 Bean 71.18 71.10 76.68 89.47 Persimmon tree 64.02 77.34 74.47 87.46 OA /% 63.02 72.68 68.26 85.43 Kappa coefficient /% 56.78 67.04 62.02 82.10
Table 3. CA on WHU-Hi-Longkou dataset
View tableTable 3. CA on WHU-Hi-Longkou dataset
Category PMS-KNN PMS-SVM PMS-RF PMS-CNN Corn 97.74 99.64 94.37 99.85 Cotton 83.53 96.03 66.15 99.94 Sesame 89.90 98.06 83.03 98.35 Round leaf soybean 76.57 92.52 70.88 99.08 Long leaf soybean 93.84 97.02 76.10 99.15 Rice 99.62 9.540 99.08 99.67 Wave 99.88 99.87 99.85 99.72 Houses and roads 91.15 94.75 88.04 95.36 Mixed weeds 86.41 97.64 81.50 97.61 OA /% 92.76 97.80 89.35 99.45 Kappa coefficient /% 90.63 97.10 86.30 99.27
Table 4. CA on WHU-Hi-HongHu dataset
View tableTable 4. CA on WHU-Hi-HongHu dataset
Category PMS-KNN PMS-SVM PMS-RF PMS-CNN Roof 95.62 80.33 93.58 98.38 Road 94.60 83.67 87.62 94.02 Exposed soil 87.36 91.36 86.13 96.33 Cotton 87.54 84.46 82.00 98.10 Cotton wood 92.34 84.39 91.18 99.45 Rape 87.99 87.79 86.40 96.57 Chinese cabbage 74.94 65.26 72.08 92.17 Pakchoi 86.60 17.60 77.20 99.95 Cabbage 96.28 91.77 94.73 97.60 Mustard tuber 73.43 66.86 76.93 96.85 Cauliflower 78.04 59.00 87.98 95.36 Green vegetables 86.78 56.75 85.84 96.27 Small green vegetables 74.96 73.16 76.14 97.06 Asparagus lettuce 86.90 64.80 87.98 97.22 Lettuce 94.66 67.80 99.00 100 Film is covered with lettuce 94.95 85.58 86.55 99.10 Thin film covered with lettuce 95.20 60.40 96.84 100 Carrot 94.42 78.54 95.64 99.40 Ternip 87.04 81.54 86.51 95.24 Garlic bolt 97.44 80.70 96.73 98.58 Bean 99.70 0 99.70 99.70 Persimmon tree 95.85 76.86 99.23 99.24 OA /% 88.97 82.90 86.84 97.60 Kappa coefficient /% 86.30 78.67 83.80 97.07
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Rujun Chen, Yunwei Pu, Fengzhen Wu, Yuceng Liu, Qi Li. Hyperspectral Image Classification Based on Hyperpixel Segmentation and Convolutional Neural Network[J]. Laser & Optoelectronics Progress, 2023, 60(16): 1610010
Paper Information
Category: Image Processing
Received: Sep. 15, 2022
Accepted: Nov. 8, 2022
Published Online: Aug. 18, 2023
The Author Email: Pu Yunwei (puyunwei@126.com)
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