Novel Polarimetric Dehazing Method Using Discrete Cosine Transform Based Laplacian Pyramid

Wenfei Zhang; Liyong Ren; Fei Xing; Fang Zhang; Xiaolu Ge; Guomei Wang; Shenggui Fu

doi:10.3788/LOP57.061102

Laser & Optoelectronics Progress, Volume. 57, Issue 6, 061102(2020)

Novel Polarimetric Dehazing Method Using Discrete Cosine Transform Based Laplacian Pyramid

Wenfei Zhang^1、*, Liyong Ren², Fei Xing¹, Fang Zhang¹, Xiaolu Ge¹, Guomei Wang¹, and Shenggui Fu^1、**

Author Affiliations

¹School of Physics and Optoelectronics Engineering, Shandong University of Technology, Zibo, Shandong 255000, China

²School of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710119, China

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Figures & Tables(9)

Fig. 1. Schematic of image pyramid

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Fig. 2. Flowchart of Laplacian pyramid construction and reconstruction. (a) Construction; (b) reconstruction

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Fig. 3. Schematic of the construction for the second level in Laplacian pyramid. (a) The second level of image pyramid; (b) the third level of image pyramid; (c) expanded image of the third level of image pyramid; (d) the second level of Laplacian pyramid

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Fig. 4. Images of pyramid. (a) Image pyramid; (b) Laplacian pyramid

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Fig. 5. Schematic of the imaging model in haze

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Fig. 6. Hazy images with different polarization states. (a) I₀; (b) I₄₅; (c) I₉₀; (d) I₁₃₅

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Fig. 7. Dehazing results by different methods. (a) Hazy images; (b) MSRCR; (c) DCP; (d) proposed method

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Table 1. Contrast results of different dehazing methods
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Table 1. Contrast results of different dehazing methods
Scene Hazy MSRCR DCP Proposedmethod
1 0.2625 0.3510 0.5306 0.6672
2 0.1635 0.2967 0.3101 0.3507
3 0.0798 0.2643 0.2214 0.2975

Table 2. NIQE results of different dehazing methods
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Table 2. NIQE results of different dehazing methods
Scene Hazy MSRCR DCP Proposedmethod
1 8.0489 6.5672 6.8863 4.8386
2 6.9146 5.6919 5.6518 3.2395
3 7.3010 4.2069 5.6995 3.8386

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Wenfei Zhang, Liyong Ren, Fei Xing, Fang Zhang, Xiaolu Ge, Guomei Wang, Shenggui Fu. Novel Polarimetric Dehazing Method Using Discrete Cosine Transform Based Laplacian Pyramid[J]. Laser & Optoelectronics Progress, 2020, 57(6): 061102

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