Acta Photonica Sinica, Volume. 50, Issue 7, 100(2021)
Research on Denoising Method for Polarization Degree Image and Polarization Angle Image of Dim and Weak Targets
Figures & Tables(14)
Fig. 1. Polarization imaging experimental platform for dim targets
Fig. 4. DOP image and gray statistical histogram after denoising by NTTM
Fig. 7. The difference between the sub-image of pure noise and other sub-images
Fig. 8. Comparison results between before and after denoising with RGCM.
Fig. 9. Comparison of five filtering algorithms for scene 3 denoising
Table 1. Objective evaluation indexes of five filtering methods for DOP image of scene 1~3
View tableView in ArticleTable 1. Objective evaluation indexes of five filtering methods for DOP image of scene 1~3
DOP image with noise Average
filter
Median
filter
Wavelet threshold denoising PCA NTTM Scene 1 PSNR/dB 62.781 63.679 7 63.725 6 63.463 9 64.587 1 75.653 SSIM/dB 0.994 8 0.995 1 0.995 4 0.995 4 0.995 1 0.998 9 MSE/dB 0.034 3 0.030 1 0.031 4 0.029 7 0.017 7 0.002 5 Scene 2 PSNR/dB 60.657 4 61.947 61.998 62.819 1 62.754 7 73.394 1 SSIM/dB 0.993 4 0.993 6 0.993 8 0.993 7 0.994 2 0.999 MSE/dB 0.039 4 0.031 5 0.032 1 0.032 8 0.018 7 0.008 7 Scene 3 PSNR/dB 60.724 8 61.278 4 61.229 0 61.174 8 62.210 2 74.793 SSIM/dB 0.994 8 0.995 0 0.995 3 0.995 4 0.995 1 0.999 1 MSE/dB 0.037 4 0.030 9 0.030 7 0.030 4 0.018 3 0.003 6
Table 2. Objective evaluation indexes of five filtering methods for AOP image of scene 1~3
View tableView in ArticleTable 2. Objective evaluation indexes of five filtering methods for AOP image of scene 1~3
AOP image with noise Average
filter
Median filter Wiener
filter
Wavelet threshold denoising RGCM Scene 1 PSNR/dB 43.592 1 45.046 2 44.666 43.593 7 43.983 6 65.772 9 SSIM/dB 0.968 6 0.97 0.968 3 0.968 6 0.969 1 0.997 4 MSE/dB 0.284 4 0.203 5 0.221 0.284 3 0.259 9 0.004 3 Scene 2 PSNR/dB 43.231 6 44.553 4 43.851 7 43.233 43.457 8 67.105 4 SSIM/dB 0.965 2 0.966 6 0.961 9 0.965 2 0.965 9 0.997 9 MSE/dB 0.309 0.227 9 0.267 9 0.208 9 0.245 0.006 8 Scene 3 PSNR/dB 53.384 3 44.698 9 44.109 3 43.385 7 43.840 7 69.273 SSIM/dB 0.966 3 0.967 7 0.964 1 0.966 3 0.967 8 0.997 2 MSE/dB 0.298 3 0.220 4 0.252 4 0.298 2 0.268 5 0.007 7
Table 3. Objective evaluation and comparison of image enhancement effects
View tableView in ArticleTable 3. Objective evaluation and comparison of image enhancement effects
AG SD MV SF SSIM Scene 1 Intensity image 9.121 2×10-7 0.002 9 0.003 4 6.578 7×10-4 0.971 4 TPF 4.467 8×10-5 0.035 1 0.123 8 0.034 74 0.995 1 PFE before denoising 4.396 5×10-4 0.160 2 0.752 8 0.790 2 0.970 1 PFE 8.661 5×10-5 0.084 7 0.149 4 0.0576 1 0.999 2 Scene 2
Intensity image 8.237 8×10-7 0.003 7 0.003 9 6.741 8×10-4 0.973 6 TPF 5.398 5×10-5 0.038 1 0.142 1 0.047 88 0.994 2 PFE before denoising 7.504 8×10-4 0.186 4 0.793 3 0.811 2 0.972 2 PFE 1.126 5×10-4 0.090 1 0.157 5 0.0742 1 0.999 3 Scene 3 Intensity image 9.744 1×10-7 0.003 1 0.003 5 6.593 0×10-4 0.978 1 TPF 6.778 4×10-5 0.036 4 0.138 8 0.0421 4 0.995 7 PFE before denoising 8.667 9×10-4 0.176 3 0.841 2 0.870 1 0.971 9 PFE 1.456 5×10-4 0.094 1 0.161 2 0.069 0.999 5
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Shuzhuo MIAO, Cunbo FAN, Guanyu WEN, Jian GAO, Guohai ZHAO. Research on Denoising Method for Polarization Degree Image and Polarization Angle Image of Dim and Weak Targets[J]. Acta Photonica Sinica, 2021, 50(7): 100
Paper Information
Category: Image Processing
Received: Dec. 29, 2020
Accepted: Mar. 2, 2021
Published Online: Sep. 1, 2021
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