Optics and Precision Engineering, Volume. 29, Issue 10, 2363(2021)
Optimized design model of novel diagonal micropolarizer arrays
Figures & Tables(12)
Fig. 1. Schematic diagram of core optical elements for DoFP polarization imaging system
Fig. 3. Discrete Fourier Transform （DFT） spectra of different MPA pattens
Fig. 4. Expression formulas of micropolarizer at different positions
Fig. 5. Reconstruction flowchart of Stokes parameters，DoLP and AoP images
Fig. 8. Original intensity image of real vehicle target under shade of trees
Fig. 9. Reconstructed DoLP images of different MPA patterns on same testing scene. （a1） 2×2， （b1） 2×4， （c1） 2×3， （d1） 2×7， （e1） 2×2×2， （f1） 3×3， （g1） 5×5， （h1） 7×7， and （i1） ground-truth； （a2）-（i2） the enlarged views of white rectangular regions of the （a1）-（i1）
Fig. 10. Convergent curves of PSNR on testing scene with different MPA patterns
Table 1. Design parameters for eight types of MPA pattern
View tableView in ArticleTable 1. Design parameters for eight types of MPA pattern
Type Origin Size a b c N 2×N Chun［ 18 ］2×2 - - - 1 LeMaster［ 19 ］2×4 4 2 1 1 Alenin［ 20 ］2×3 3 1.5 1 1 Alenin［ 20 ］2×7 7 3.5 2 1 Alenin［ 20 ］2×2×2 2 1 1 2 Diag N×N This work 3×3 3 1 1 1 This work 5×5 5 2 2 1 This work 7×7 7 3 3 1
Table 2. Comparison of evaluation index results of reconstruction images with different MPAs
View tableView in ArticleTable 2. Comparison of evaluation index results of reconstruction images with different MPAs
模式 RMSE PSNR SSIM S0 S1 S2 DoLP S0 S1 S2 DoLP S0 S1 S2 DoLP 2×2 0.010 3 0.010 8 0.010 9 0.010 6 39.734 3 39.319 6 39.223 0 39.501 8 0.996 1 0.972 8 0.972 4 0.960 4 2×4 0.006 8 0.009 3 0.009 4 0.008 7 43.369 2 40.649 1 40.548 8 41.172 8 0.998 0 0.980 1 0.980 6 0.968 7 2×3 0.006 1 0.010 4 0.010 4 0.009 6 44.226 6 39.657 9 39.693 4 40.333 6 0.998 3 0.975 1 0.979 7 0.965 9 2×7 0.006 5 0.009 5 0.009 5 0.009 0 43.776 5 40.441 8 40.458 9 40.903 9 0.998 1 0.978 5 0.979 7 0.968 0 2×2×2 0.005 6 0.005 6 0.005 7 0.005 1 45.032 3 45.030 8 44.883 4 45.922 5 0.998 5 0.990 6 0.989 1 0.985 2 3×3 0.007 3 0.008 7 0.008 5 0.007 8 42.770 1 41.168 9 41.399 9 42.193 7 0.998 0 0.980 3 0.981 0 0.971 9 5×5 0.006 2 0.010 5 0.010 5 0.009 7 44.186 7 39.593 0 39.570 4 40.299 5 0.998 3 0.971 2 0.973 7 0.957 4 7×7 0.005 9 0.019 4 0.019 4 0.016 0 44.523 1 34.248 3 34.225 0 35.918 1 0.998 4 0.931 9 0.953 4 0.911 0
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Jia HAO, Yan WANG, Kui ZHOU, Xiao-chang YU, Yi-ting YU. Optimized design model of novel diagonal micropolarizer arrays[J]. Optics and Precision Engineering, 2021, 29(10): 2363
Paper Information
Category: Micro/Nano Technology and Fine Mechanics
Received: Apr. 6, 2021
Accepted: --
Published Online: Nov. 23, 2021
The Author Email: YU Yi-ting (yyt@nwpu.edu.cn)
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