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Pyramid Global Context Network for Image Dehazing
Zhao, Dong1; Xu, Long1; Ma, Lin2; Li, Jia3; Yan, Yihua1
2021-08-01
Source PublicationIEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
ISSN1051-8215
Volume31Issue:8Pages:3037-3050
AbstractHaze caused by atmospheric scattering and absorption would severely affect scene visibility of an image. Thus, image dehazing for haze removal has been widely studied in the literature. Within a hazy image, haze is not confined in a small local patch/position, while widely diffusing in a whole image. Under this circumstance, global context is a crucial factor in the success of dehazing, which was seldom investigated in existing dehazing algorithms. In the literature, the global context (GC) block has been designed to learn point-wise long-range dependencies of an image for global context modeling; however, patch-wise long-range dependencies were ignored. To image dehazing, patch-wise long-range dependencies should be highlighted to cooperate with patch-wise operations of image dehazing. In this paper, we first extend the point-wise GC into a Pyramid Global Context (PGC), which is a multi-scale GC, after undergoing the pyramid pooling. Thus, patch-wise long-range dependencies can be explored by the PGC. Then, the proposed PGC is plugged into a U-Net, getting an attentive U-Net. Further, the attentive U-Net is optimized by importing ResNet's shortcut connection and dilated convolution. Thus, the finalized dehazing model can explore both long-range and patch-wise context dependencies for global context modeling, which is crucial for image dehazing. The extensive experiments on synthetic databases and real-world hazy images demonstrate the superiority of our model over other representative state-of-the-art models from both quantitative and qualitative comparisons.
KeywordContext modeling Convolution Atmospheric modeling Scattering Solid modeling Databases Estimation Image dehazing deep learning global context modeling pyramid global context (PGC) dilated residual U-Net (DRU)
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC)
DOI10.1109/TCSVT.2020.3036992
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[61811530282] ; National Natural Science Foundation of China (NSFC)[61922006] ; National Natural Science Foundation of China (NSFC)[11790301] ; National Natural Science Foundation of China (NSFC)[11790305]
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC)
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000681222500012
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/76135
Collection中国科学院国家天文台
Corresponding AuthorXu, Long
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100101, Peoples R China
2.Meituan, Beijing 100102, Peoples R China
3.Beihang Univ, State Key Lab Virtual Real Technol & Syst, Sch Comp Sci & Engn, Beijing 100191, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Dong,Xu, Long,Ma, Lin,et al. Pyramid Global Context Network for Image Dehazing[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,2021,31(8):3037-3050.
APA Zhao, Dong,Xu, Long,Ma, Lin,Li, Jia,&Yan, Yihua.(2021).Pyramid Global Context Network for Image Dehazing.IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,31(8),3037-3050.
MLA Zhao, Dong,et al."Pyramid Global Context Network for Image Dehazing".IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 31.8(2021):3037-3050.
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