Chinese Optics, Volume. 17, Issue 5, 1098(2024)
Polarization spectral image fusion method for hybrid backgrounds of ground objects
Fig. 1. (a) Flowchart of NSCT decomposition and (b) ideal frequency domain segmentation for NSCT
Fig. 8. Comparison of the reference method and the proposed method
Fig. 9. Objective evaluation indexes of different fusion methods at four wavelengths
Table 1. Objective evaluation metric results of low-frequency sub-band fusion
View tableView in ArticleTable 1. Objective evaluation metric results of low-frequency sub-band fusion
评价 指标 融合规则 区域方差匹配度 取平均 权重融合 稀疏表示 MI 1.6685 1.4523 1.6238 1.9777 Qw 0.6408 0.6324 0.7241 0.7822
Table 2. Evaluation metric results of high-frequency contour information
View tableView in ArticleTable 2. Evaluation metric results of high-frequency contour information
评价指标 PCNN 边缘探测 绝对值取大 引导滤波 SSIM 0.7354 0.6821 0.6378 0.7562 Qab/f 0.5916 0.4481 0.4507 0.5988
Table 3. Indicators of polarization spectral imager
View tableView in ArticleTable 3. Indicators of polarization spectral imager
性能指标 参数值 波长范围/nm 400~900 光谱分辨率 优于2 nm F/# 3 视场角/(°) ±4.1 分辨率 2448×2048 像元尺寸/μm 3.45×3.45 光学尺寸/inch 2/3 帧率 36 fps@2448×2048
Table 4. The evaluation indexes of image fusion of each component for the reference method and the proposed method
View tableView in ArticleTable 4. The evaluation indexes of image fusion of each component for the reference method and the proposed method
融合图像 评价指标 MI SSIM Qab/f Qw 参考方法I融合结果 2.7623 0.7182 0.6147 0.8367 本文I融合结果 2.8031 0.7387 0.6393 0.8625 参考方法DoLP融合结果 1.9765 0.6376 0.5733 0.7615 本文DoLP融合结果 2.7342 0.7023 0.6142 0.8222 参考方法AoP融合结果 1.6681 0.5679 0.4935 0.6138 本文AoP融合结果 1.7437 0.6755 0.5883 0.7004
Table 5. The evaluation indexes of HSI pseudo-colored images for the reference method and the proposed method
View tableView in ArticleTable 5. The evaluation indexes of HSI pseudo-colored images for the reference method and the proposed method
不同方法 评价指标 PSNR SSIM 参考方法HSI融合结果 22.81 dB 0.6431 本文方法HSI融合结果 28.52 dB 0.6947
Table 6. Evaluation results of different fusion methods
View tableView in ArticleTable 6. Evaluation results of different fusion methods
融合方法 评价指标 MI SSIM Qab/f Qw CNN 2.2343 0.6434 0.5662 0.7787 GFF 1.7685 0.5862 0.5137 0.7507 LP-SR 2.1132 0.6361 0.5354 0.7427 CVT-SR 2.2356 0.6053 0.5833 0.7706 NSCT-SR 2.5835 0.5965 0.5350 0.7582 本文方法 2.7342 0.7023 0.6142 0.8222
Table 7. Evaluation indexes of original true color image and fused true color image
View tableView in ArticleTable 7. Evaluation indexes of original true color image and fused true color image
真彩图像 评价指标 PSNR SSIM 原始真彩图像 33.72 dB 0.8672 融合后的真彩图像 36.87 dB 0.9104
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Ying-chao LI, Zhe-hao ZHAO, Qi WANG, Jia-nan LIU, Hao-dong SHI, Qiang FU, Hong-yu SUN. Polarization spectral image fusion method for hybrid backgrounds of ground objects[J]. Chinese Optics, 2024, 17(5): 1098
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Received: Oct. 8, 2023
Accepted: --
Published Online: Dec. 31, 2024
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