Article(id=1203753465085408058, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1203753457208504777, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2308919, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1699891200000, receivedDateStr=2023-11-14, revisedDate=1729440000000, revisedDateStr=2024-10-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1764926790734, onlineDateStr=2025-12-05, pubDate=1737129600000, pubDateStr=2025-01-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764926790734, onlineIssueDateStr=2025-12-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764926790734, creator=13701087609, updateTime=1764926790734, updator=13701087609, issue=Issue{id=1203753457208504777, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='2', pageStart='439', pageEnd='878', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764926788856, creator=13701087609, updateTime=1764928745558, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1203761664261858014, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1203753457208504777, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1203761664261858015, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1203753457208504777, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=704, endPage=712, ext={EN=ArticleExt(id=1203753466075263905, articleId=1203753465085408058, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Low-Light Image Enhancement and Denoising Algorithm Integrating Zero-Reference Depth Curves, columnId=1156262729162810294, journalTitle=Science Technology and Engineering, columnName=Papers·Automation and Computational Technology, runingTitle=null, highlight=null, articleAbstract=
In order to address issues such as high noise, low brightness, and blurred details in low-light conditions, a new algorithm named UMDCEAD-NET, integrating zero-reference depth curves for low-light image enhancement and denoising, was developed. The algorithm's design was initially centered around a feature extraction network, employing a U-Net architecture as the backbone network. To enhance the feature extraction capabilities and preserve more detailed image information, Mobile-Net was integrated into the downsampling phase of the U-Net backbone. Subsequently, to address the issue of inadequate lighting and pixel-level image degradation, the extracted features underwent iteration using depth curve estimation (LE-curve), in conjunction with depth separable convolution, which served to reduce the network model's parameter count. Furthermore, five non-reference loss functions were engineered to bolster the algorithm's generalization capabilities and its retention of detail under varying lighting conditions. The enhanced image was then subjected to noise reduction in tandem with AD-NET(attentional denoising network), thereby diminishing the noise and aligning the image more closely with human visual perception. Experimental outcomes demonstrated that the proposed algorithm achieved an average PSNR (peak signal-to-noise ratio) of 22.29 on the public dataset Zero-DCE, which exceeded the performance of the Zero-DCE++ algorithm by 32%. Additionally, on the public dataset LOL, the algorithm attained an average PSNR of 21.15, outperforming the SGZ algorithm by 3%. These results indicate that the algorithm effectively mitigates noise in enhanced images, enriching the detail information in both dark and bright regions, and significantly improving image quality compared to other mainstream algorithms.
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为解决低光照条件下的图像噪声多、亮度低、细节模糊等问题,提出了一种融合零参考深度曲线的低照度图像增强与去噪算法(UMDCEAD-NET)。该算法首先设计了一个特征提取网络,以u-net为主干网络,并在主干U-Net的下采样过程融入mobile-net,以提高算法特征提取能力,保留更多图像细节信息。其次,为解决图像像素级光照不足、网络的退化的问题,利用深度曲线估计(LE-曲线)对提取特征进行迭代,结合深度可分离卷积降低网络模型的参数量,并设计了5个非参考损失函数,提高算法在不同光照条件下的泛化能力和细节保留能力。最后,结合AD-NET(attentional denoising network)对增强后的图像进行降噪处理,以减少增强图像的噪声,使得图像更符合人眼的视觉感知。实验结果显示,本文算法在公开数据集Zero-DCE平均峰值信噪比(peak signal-to-noise ratio,PSNR)达到22.29,相比Zero-DCE++算法提高了32%,在公开数据集LOL的PSNR达到21.15,相比SGZ算法提高了3%。可见,该算法能够有效地解决增强后图像的噪声问题,使得增强后的图像暗部和亮部区域的细节信息更加丰富,与其他主流算法相比本文算法图像质量有明显提升。
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田博文(1999—),男,汉族,江苏宝应人,硕士研究生。研究方向:低照度图像增强。E-mail:617376537@qq.com。
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田博文(1999—),男,汉族,江苏宝应人,硕士研究生。研究方向:低照度图像增强。E-mail:617376537@qq.com。
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arXiv preprint arXiv: 1403.1687, 2014., articleTitle=Rigid-motion scattering for texture classification, refAbstract=null)], funds=[Fund(id=1203787156453044867, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, awardId=2023SYL08, language=CN, fundingSource=中国人民公安大学安全防范工程双一流专项(2023SYL08), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1203787147343016852, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, xref=null, ext=[AuthorCompanyExt(id=1203787147359794070, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, companyId=1203787147343016852, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Information Network Security, People's Public Security University of China, Beijing 100038, China), AuthorCompanyExt(id=1203787147372376985, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, companyId=1203787147343016852, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中国人民公安大学信息网络安全学院, 北京 100038)])], figs=[ArticleFig(id=1203787151432462540, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Fig.1, caption=
The framework of UMDCEAD-NET, figureFileSmall=vmKpxFRvzCGouOwdU+YT0A==, figureFileBig=OzTKMtcxGNBAEqyviLjnVw==, tableContent=null), ArticleFig(id=1203787151596040417, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=图1, caption=
UMDCEAD-NET网络结构, figureFileSmall=vmKpxFRvzCGouOwdU+YT0A==, figureFileBig=OzTKMtcxGNBAEqyviLjnVw==, tableContent=null), ArticleFig(id=1203787151700898033, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Fig.2, caption=
The framework of depthwise convolution, figureFileSmall=SjzO5FBh8A7H6yn0nGQrNA==, figureFileBig=CCOnNjoadwH1CNKWaB613A==, tableContent=null), ArticleFig(id=1203787151776395516, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=图2, caption=
逐通道卷积结构, figureFileSmall=SjzO5FBh8A7H6yn0nGQrNA==, figureFileBig=CCOnNjoadwH1CNKWaB613A==, tableContent=null), ArticleFig(id=1203787151952556304, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Fig.3, caption=
Theframework of pointwise convolution, figureFileSmall=BhIiz7SiLpBLjTHIRv5m5A==, figureFileBig=4oY48TGYSHoHEjnntO0HLA==, tableContent=null), ArticleFig(id=1203787152099356957, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=图3, caption=
逐点卷积结构, figureFileSmall=BhIiz7SiLpBLjTHIRv5m5A==, figureFileBig=4oY48TGYSHoHEjnntO0HLA==, tableContent=null), ArticleFig(id=1203787152229380400, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Fig.4, caption=
Visual comparison of typical low-light images 1, figureFileSmall=AJPde9oAMDS9uGCz47yggg==, figureFileBig=gamV15Id8Z+UvtgrHF7vew==, tableContent=null), ArticleFig(id=1203787152363598144, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=图4, caption=
典型低光照图像的视觉比较1, figureFileSmall=AJPde9oAMDS9uGCz47yggg==, figureFileBig=gamV15Id8Z+UvtgrHF7vew==, tableContent=null), ArticleFig(id=1203787152535564623, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Fig.5, caption=
Visual comparison of typical low-light images 2, figureFileSmall=jAtvW01rXQkd9NvDMk2KrQ==, figureFileBig=52YkFM1iFh8pod6XPRyoHQ==, tableContent=null), ArticleFig(id=1203787153735135584, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=图5, caption=
典型低光照图像的视觉比较2, figureFileSmall=jAtvW01rXQkd9NvDMk2KrQ==, figureFileBig=52YkFM1iFh8pod6XPRyoHQ==, tableContent=null), ArticleFig(id=1203787153877741937, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Fig.6, caption=
Visual comparison of typical low-light images 3, figureFileSmall=zQzwKhf+O0UQ/qmpyJCL1Q==, figureFileBig=flzqpRJ8dxPla83hiSDxnw==, tableContent=null), ArticleFig(id=1203787154016153983, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=图6, caption=
典型低光照图像的视觉比较3, figureFileSmall=zQzwKhf+O0UQ/qmpyJCL1Q==, figureFileBig=flzqpRJ8dxPla83hiSDxnw==, tableContent=null), ArticleFig(id=1203787154238452109, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Fig.7, caption=
Comparison of images generated from ablation experiments of the effects of each component of UMDCEAD-NET, figureFileSmall=5uyWr82rvZpeFFcWspGpwQ==, figureFileBig=g1Z1lODp91CHmCu9V+EzuQ==, tableContent=null), ArticleFig(id=1203787154326532502, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=图7, caption=
UMDCEAD-NET的每个组成部分的影响消融实验生成图像对比图, figureFileSmall=5uyWr82rvZpeFFcWspGpwQ==, figureFileBig=g1Z1lODp91CHmCu9V+EzuQ==, tableContent=null), ArticleFig(id=1203787154485916074, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Fig.8, caption=
Comparisonof images generated with different batch sizes, figureFileSmall=ipDOH3jPq2Pos7BBU5Auvg==, figureFileBig=LmQGWgo42wxMxp1jiW4vXg==, tableContent=null), ArticleFig(id=1203787154641105343, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=图8, caption=
不同批次大小生成图像对比图, figureFileSmall=ipDOH3jPq2Pos7BBU5Auvg==, figureFileBig=LmQGWgo42wxMxp1jiW4vXg==, tableContent=null), ArticleFig(id=1203787154779517387, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Fig.9, caption=
Comparison of images generated with different noise reduction levels, figureFileSmall=vzrIwdrDf8NHuzM7mCqemQ==, figureFileBig=GCNMEKMkNzePn0pxckUbBQ==, tableContent=null), ArticleFig(id=1203787154917929435, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=图9, caption=
不同降噪水平生成图像对比图, figureFileSmall=vzrIwdrDf8NHuzM7mCqemQ==, figureFileBig=GCNMEKMkNzePn0pxckUbBQ==, tableContent=null), ArticleFig(id=1203787155073118700, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Table 1, caption=
Quantitative comparison in terms of image quality assessment metrics
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | Zero-DCE dataset | LOL datasets |
| PSNR(↑) | SSIM(↑) | PSNR(↑) | SSIM(↑) |
| SRIE | 14.41 | 0.54 | — | — |
| LIME | 16.17 | 0.57 | — | — |
| RetinexNet | 15.99 | 0.53 | 7.58 | 0.30 |
| Zero-DCE | 16.57 | 0.59 | 13.29 | 0.63 |
| Zero-DCE++ | 16.79 | 0.57 | 13.94 | 0.67 |
| RetinexDIP | 12.90 | 0.71 | 11.88 | 0.41 |
| SGZ | 12.10 | 0.60 | 20.60 | 0.79 |
| 本文方法 | 22.29 | 0.89 | 21.15 | 0.74 |
), ArticleFig(id=1203787155211530748, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=表1, caption=
图像质量评估指标方面的定量比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | Zero-DCE dataset | LOL datasets |
| PSNR(↑) | SSIM(↑) | PSNR(↑) | SSIM(↑) |
| SRIE | 14.41 | 0.54 | — | — |
| LIME | 16.17 | 0.57 | — | — |
| RetinexNet | 15.99 | 0.53 | 7.58 | 0.30 |
| Zero-DCE | 16.57 | 0.59 | 13.29 | 0.63 |
| Zero-DCE++ | 16.79 | 0.57 | 13.94 | 0.67 |
| RetinexDIP | 12.90 | 0.71 | 11.88 | 0.41 |
| SGZ | 12.10 | 0.60 | 20.60 | 0.79 |
| 本文方法 | 22.29 | 0.89 | 21.15 | 0.74 |
), ArticleFig(id=1203787155303805448, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Table 2, caption=
Comparison of subjective evaluation of enhanced images
, figureFileSmall=null, figureFileBig=null, tableContent=
| 图片编号 | SRIE | LIME | RetinexNet | Zero-DCE | Zero-DCE++ | RetinexDIP | SGZ | 本文方法 |
| 1 | 2.20 | 2.55 | 2.80 | 3.05 | 3.20 | 3.10 | 3.30 | 3.45 |
| 2 | 2.25 | 2.50 | 2.90 | 3.00 | 3.15 | 2.90 | 3.35 | 3.30 |
| 3 | 2.10 | 2.40 | 2.95 | 2.95 | 3.20 | 2.80 | 3.00 | 3.40 |
| 4 | 2.50 | 2.55 | 2.90 | 3.10 | 3.05 | 3.00 | 2.95 | 3.15 |
| 5 | 2.45 | 2.30 | 3.00 | 3.10 | 3.00 | 2.75 | 3.15 | 3.20 |
| 6 | 2.45 | 2.35 | 3.05 | 3.00 | 3.15 | 3.05 | 3.05 | 3.25 |
| 7 | 2.00 | 2.50 | 2.85 | 3.15 | 3.25 | 3.10 | 3.10 | 3.35 |
| 8 | 2.60 | 2.65 | 2.95 | 3.10 | 3.20 | 3.10 | 3.25 | 3.40 |
| 9 | 2.35 | 2.60 | 2.90 | 3.05 | 3.10 | 3.00 | 3.30 | 3.45 |
| 10 | 2.20 | 2.60 | 3.00 | 3.00 | 3.05 | 3.10 | 3.05 | 3.10 |
), ArticleFig(id=1203787155417051672, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=表2, caption=
增强后图像主观评价对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 图片编号 | SRIE | LIME | RetinexNet | Zero-DCE | Zero-DCE++ | RetinexDIP | SGZ | 本文方法 |
| 1 | 2.20 | 2.55 | 2.80 | 3.05 | 3.20 | 3.10 | 3.30 | 3.45 |
| 2 | 2.25 | 2.50 | 2.90 | 3.00 | 3.15 | 2.90 | 3.35 | 3.30 |
| 3 | 2.10 | 2.40 | 2.95 | 2.95 | 3.20 | 2.80 | 3.00 | 3.40 |
| 4 | 2.50 | 2.55 | 2.90 | 3.10 | 3.05 | 3.00 | 2.95 | 3.15 |
| 5 | 2.45 | 2.30 | 3.00 | 3.10 | 3.00 | 2.75 | 3.15 | 3.20 |
| 6 | 2.45 | 2.35 | 3.05 | 3.00 | 3.15 | 3.05 | 3.05 | 3.25 |
| 7 | 2.00 | 2.50 | 2.85 | 3.15 | 3.25 | 3.10 | 3.10 | 3.35 |
| 8 | 2.60 | 2.65 | 2.95 | 3.10 | 3.20 | 3.10 | 3.25 | 3.40 |
| 9 | 2.35 | 2.60 | 2.90 | 3.05 | 3.10 | 3.00 | 3.30 | 3.45 |
| 10 | 2.20 | 2.60 | 3.00 | 3.00 | 3.05 | 3.10 | 3.05 | 3.10 |
), ArticleFig(id=1203787155576435244, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Table 3, caption=
Quantitative comparison in terms of image quality assessment metrics in ablation experiments
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | PSNR(↑) | SSIM(↑) |
| 低照度图像 | 10.71 | 0.33 |
| 本文方法 | 22.89 | 0.89 |
| 只包括mobile-net融入U-Net的下采样模块 | 17.61 | 0.79 |
| 只包括AD-NET降噪模块 | 18.45 | 0.64 |
), ArticleFig(id=1203787155714847286, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=表3, caption=
消融实验中图像质量评估指标的定量比较
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| 方法 | PSNR(↑) | SSIM(↑) |
| 低照度图像 | 10.71 | 0.33 |
| 本文方法 | 22.89 | 0.89 |
| 只包括mobile-net融入U-Net的下采样模块 | 17.61 | 0.79 |
| 只包括AD-NET降噪模块 | 18.45 | 0.64 |
), ArticleFig(id=1203787155819704902, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Table 4, caption=
Comparison of different batch sizes in terms of PSNR, SSIM and LPIPS
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| 方法 | PSNR (↑) | SSIM (↑) | LPIPS (↓) |
| 批次大小为2 | 10.71 | 0.33 | — |
| 批次大小为4 | 14.48 | 0.606 | 0.289 |
| 批次大小为8 | 14.63 | 0.615 | 0.299 |
| 批次大小为16 | 19.35 | 0.87 | 0.159 |
| 本文方法 | 22.89 | 0.89 | 0.085 |
), ArticleFig(id=1203787155932951127, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=表4, caption=
不同的批次大小在PSNR、SSIM和LPIPS方面的比较
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| 方法 | PSNR (↑) | SSIM (↑) | LPIPS (↓) |
| 批次大小为2 | 10.71 | 0.33 | — |
| 批次大小为4 | 14.48 | 0.606 | 0.289 |
| 批次大小为8 | 14.63 | 0.615 | 0.299 |
| 批次大小为16 | 19.35 | 0.87 | 0.159 |
| 本文方法 | 22.89 | 0.89 | 0.085 |
), ArticleFig(id=1203787156092334691, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=EN, label=Table 5, caption=
Comparison of different noise reduction levels in terms of PSNR, SSIM
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| 方法 | PSNR (↑) | SSIM (↑) |
| 低照度图像 | 10.71 | 0.33 |
| 降噪水平=0.7 | 17.39 | 0.79 |
| 降噪水平=0.8 | 18.32 | 0.81 |
| 本文方法 | 22.89 | 0.89 |
| 降噪水平=1.0 | 19.71 | 0.74 |
| 降噪水平=1.1 | 20.06 | 0.80 |
), ArticleFig(id=1203787156205580914, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1203753465085408058, language=CN, label=表5, caption=
消融实验中图像质量评估指标的定量比较
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| 方法 | PSNR (↑) | SSIM (↑) |
| 低照度图像 | 10.71 | 0.33 |
| 降噪水平=0.7 | 17.39 | 0.79 |
| 降噪水平=0.8 | 18.32 | 0.81 |
| 本文方法 | 22.89 | 0.89 |
| 降噪水平=1.0 | 19.71 | 0.74 |
| 降噪水平=1.1 | 20.06 | 0.80 |
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