Underwater polarization imaging method based on active illumination modulation

Changji DONG; Weihong ZHANG; Yizhao HUANG; Xujin LI; Hongyuan WANG; Haofeng HU

doi:10.5768/JAO202445.0602003

Journal of Applied Optics, Volume. 45, Issue 6, 1189(2024)

Underwater polarization imaging method based on active illumination modulation

Changji DONG¹, Weihong ZHANG^2,3, Yizhao HUANG⁴, Xujin LI³, Hongyuan WANG^5、*, and Haofeng HU^2,3,4

¹Joint Research Centre for Industrialization of Marine Economic Technology, School of Marine Science and Technology, Tianjin University, Tianjin 300072, China

²School of Marine Science and Technology, Tianjin University, Tianjin 300072, China

³Laoshan Laboratory ,Ocean Observation and Exploration Research Department, Qingdao 266237, China

⁴School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China

⁵State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China

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Figures & Tables(8)

Fig. 1. Diagram of Mueller matrix imaging device

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Fig. 2. Experimental scenarios normalized Mueller matrix measurement results

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Fig. 3. Flow chart of computational imaging based on Mueller matrix

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Fig. 4. Comparison of results of different image processing methods

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Fig. 5. Histogram distribution of gray scale for different image processing methods

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Fig. 6. Results of different processing methods

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Fig. 7. Comparison of red dashed gray value curves in Fig. 6

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Table 1. Objective evaluation indicators for light intensity images and different algorithms in Fig. 6
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Table 1. Objective evaluation indicators for light intensity images and different algorithms in Fig. 6
指标光强图 LRSD DCP Retinex Ours-1 Ours-2
EME 1.128 1.925 3.435 3.401 5.197 12.946
STD 0.017 0.040 0.048 0.033 0.041 0.067
Entropy 6.912 7.361 7.513 7.302 7.383 7.745
C 0.220 0.526 0.404 0.467 0.354 0.518

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Changji DONG, Weihong ZHANG, Yizhao HUANG, Xujin LI, Hongyuan WANG, Haofeng HU. Underwater polarization imaging method based on active illumination modulation[J]. Journal of Applied Optics, 2024, 45(6): 1189

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