Chinese Optics, Volume. 17, Issue 6, 1297(2024)
Sea surface glint suppression method based on polarization feature reconstruction
Fig. 3. Four-channel linearly polarized light images. (a) Image ; (b) image ; (c) image ; (d) image 四通道线偏振光图像。（a）图像；（b）图像；（c）图像；（d）图像
Fig. 4. Common gray components and texture feature component of scene. (a) Image
Fig. 5. Intensity images and corresponding pseudo color images. (a) (d) Scene 1; (b) (e) scene 2; (c) (f) scene 3
Fig. 6. Glint suppression images and corresponding pseudo color images. (a) (d) Scene 1; (b) (e) scene 2; (c) (f) scene 3
Fig. 7. Reconstructed glint suppression images and corresponding pseudo color images. (a) (d) Scene 1; (b) (e) scene 2; (c) (f) scene 3
Fig. 9. The alteration of image spatial frequency and contrast in relation to exposure time before and after glint suppression. (a) Spatial frequency; (b) contrast
Table 1. Evaluation index of linearly polarized image
View tableView in ArticleTable 1. Evaluation index of linearly polarized image
评价指标 ${I_{{\text{0}}\text{°} }}$ ${I_{45\text{°} }}$ ${I_{{\text{90}}\text{°} }}$ ${I_{135\text{°} }}$ 空间频率 42.33 39.87 30.94 43.69 对比度 0.48 0.39 0.37 0.35
Table 2. Image quality evaluation index
View tableView in ArticleTable 2. Image quality evaluation index
实验区域 评价指标 $ I $ $ I_{{\mathrm{F}}} $ $ I_{\mathrm{N}} $ 文献[ 16 ]文献[ 17 ]场景1 饱和像素占比/% 48.55 20.71 10.16 14.04 11.12 空间频率 32.12 39.45 45.29 39.57 42.57 对比度 0.39 0.51 0.54 0.47 0.47 场景2 饱和像素占比/% 59.79 24.92 14.91 41.62 18.57 空间频率 17.69 26.87 30.74 19.26 21.45 对比度 0.11 0.26 0.30 0.10 0.17 场景3 饱和像素占比/% 31.07 24.72 22.33 25.49 22.49 空间频率 33.10 38.29 46.37 34.94 32.12 对比度 — — — — —
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Ming-zhu SONG, Rong GUO, Li-zhou LI, Shu-ping TAO, Yan-tong CHEN, Jun-sheng WANG. Sea surface glint suppression method based on polarization feature reconstruction[J]. Chinese Optics, 2024, 17(6): 1297
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Received: Jan. 9, 2024
Accepted: Mar. 18, 2024
Published Online: Jan. 14, 2025
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