Journal of Jilin University(Engineering and Technology Edition) ›› 2025, Vol. 55 ›› Issue (6): 2103-2113.doi: 10.13229/j.cnki.jdxbgxb.20230813

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Multi⁃depth adaptive fusion dehazing generation network

Bin WEN1,2(),Shun PENG1,2,Chao YANG1(),Yan-jun SHEN1,Hui LI3   

  1. 1.School of Electrical and New Energy,China Three Gorges University,Yichang 443002,China
    2.Hubei Provincial Engineering Technology Research Center for Power Transmission Line,Yichang 443002,China
    3.School of Aeronautics and Astronautics,University of Electronic Science and Technology of China,Chengdu 611731,China
  • Received:2023-08-03 Online:2025-06-01 Published:2025-07-23
  • Contact: Chao YANG E-mail:wenbin_08@126.com;yangchao_0305@126.com

Abstract:

To address issues such as incomplete dehazing and distortion in image dehazing, a multi-depth adaptive fusion dehazing generation network is proposed using generative adversarial training. Firitly, the network utilizes U-Net++ architecture and haze perception units to learn the haze features. Secondly, a vector mixed attention module is proposed to expand the bottom-layer information and supplement details in the dehazed image. Thirdly, adaptive weights are constructed from partial and global dimensions to select features at different depths and improve the utilization of effective information in the network. Finally, a mixed loss is employed to ensure the quality of the generated image, and Wasserstein distance is introduced into the adversarial loss. To validate the effectiveness of the proposed algorithm, objective quantitative comparisons are conducted with 10 popular dehazing algorithms on the RESIDE and Haze4k datasets, followed by subjective evaluations on real images. The experimental results demonstrate that the proposed algorithm achieves a PSNR of 36.20 dB and SSIM of 0.988 4 on the SOTS Outdoor validation set, showing superior dehazing performance.

Key words: information processing technology, image dehazing, generate adversarial network, multiple depth feature, adaptive feature fusion

CLC Number: 

  • TP391.4

Fig.1

Training framework"

Fig.2

Multi-depth adaptive fusion network structure"

Fig.3

Multi-depth feature extraction module structure"

Fig.4

Haze perception block structure"

Fig.5

Vector mixed attention module structure"

Fig.6

Vector mixed attention module structure"

Fig.7

Weight change process"

Fig.8

Measurement of different distances"

Fig.9

Training loss curve"

Table 1

Comparison of different methods on synthetic data sets"

MethodSOTS(indoor)SOTS(outdoor)Haze4k

PSNR

/dB

SSIM

/%

PSNR

/dB

SSIM

/%

PSNR

/dB

SSIM

/%

DCP16.620.817 919.130.814 814.010.767 9
CAP19.050.843 115.930.815 014.460.672 4
AOD-Net19.060.850 420.290.876 517.150.833 9
Dehazed21.140.847 222.460.851 419.120.846 7
FD-GAN23.450.925 823.680.901 720.390.894 3
HIDE-GAN25.010.871 226.640.892 321.720.915 2
GridDehazed32.160.983 630.860.981 923.290.931 2
FFA-Net36.390.988 633.570.984 026.960.957 3
SADNet23.850.902 326.970.927 421.400.907 8
GANID32.520.936 733.960.949 1--
本文34.200.985 136.200.988 427.670.968 9

Fig.10

Comparison of different algorithms on the synthetic data set"

Fig.11

Comparison of different algorithms on the real dataset"

Table 2

Different module ablation experiments"

模型VMAMAWMHPBPSNR/dBSSIM/%
模型 a36.200.988 4
模型 b35.040.985 3
模型 c33.220.984 3
模型 d32.410.983 9

Table 3

Different loss ablation experiments"

MethodPSNR/dBSSIM/%
Baseline27.980.938 2
Wloss30.040.960 1
LPM+Wloss30.890.969 8
LP+LPM+Wloss32.410.983 9
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