Acta Optica Sinica, Volume. 40, Issue 21, 2111002(2020)
Algorithm for Underwater Polarization Imaging Based on Global Estimation
Figures & Tables(8)
Fig. 4. Gray-scale images of degree of polarization of backscattered light. (a) Badminton; (b) metal block; (c) metal cooling fin
Table 1. Optimal values of modified parameters
View tableTable 1. Optimal values of modified parameters
Parameter Badminton Metal block Cooling fin 80 mL milk+ 100 L water 100 mL milk+ 100 L water 80 mL milk+ 100 L water 100 mL milk+ 100 L water 80 mL milk+ 100 L water 100 mL milk+ 100 L water 0 0 0.35 0.35 0.33 0.29 εscat 0.26 0.18 0.12 0.07 0.17 0.14 εtarget 0 0 0 0 0 0
Table 2. Evaluation results of restored images
View tableTable 2. Evaluation results of restored images
Evaluation index Badminton Metal block Cooling fin Original image Schechner's result Our result Original image Schechner's result Our result Original image Schechner's result Our result EME 0.218 0.889 1.971 0.223 0.817 2.016 0.595 0.929 3.703 Average gradient 0.002 0.005 0.014 0.002 0.005 0.015 0.004 0.005 0.022 Standard deviation 0.045 0.131 0.327 0.051 0.033 0.311 0.060 0.046 0.281 Information entropy 5.058 5.078 5.200 4.909 4.433 6.540 5.663 4.553 7.335
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Fei Feng, Guojun Wu, Yafeng Wu, Yuhong Miao, Bo Liu. Algorithm for Underwater Polarization Imaging Based on Global Estimation[J]. Acta Optica Sinica, 2020, 40(21): 2111002
Paper Information
Category: Imaging Systems
Received: Jun. 8, 2020
Accepted: Jul. 15, 2020
Published Online: Oct. 17, 2020
The Author Email: Wu Guojun (wuguojun@opt.ac.cn)
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