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基于Transformer的单幅图像去雾算法综述

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计算机科学与探索 2024年第5期18卷 1182-1196页

作者：张凯丽王安志熊娅维刘运贵州师范大学大数据与计算机科学学院贵阳550025 西南大学人工智能学院重庆400715

图像去雾是一种低级的计算机视觉任务,旨在对雾天降质图像进行预处理,通过恢复其颜色对比度、细节纹理等信息,提高图像的可视性和质量,还原清晰的无雾图像,为后续高级视觉任务(如目标检测、目标追踪、目标分割等)的执行奠定基础。近年来... 详细信息

图像去雾是一种低级的计算机视觉任务,旨在对雾天降质图像进行预处理,通过恢复其颜色对比度、细节纹理等信息,提高图像的可视性和质量,还原清晰的无雾图像,为后续高级视觉任务(如目标检测、目标追踪、目标分割等)的执行奠定基础。近年来,基于神经网络的去雾算法取得了不错的去雾效果,诸多基于Transformer的图像去雾算法逐渐被提出。但目前缺少对基于Transformer的图像去雾算法进行全面分析和总结的综述。为了弥补这一空缺,对基于Transformer的日间图像、夜间图像和遥感图像去雾算法进行了全面的梳理和综述,其中不仅涵盖了各类去雾算法的基本原理,还探讨了这些算法在不同场景下的适用性和性能表现。此外,介绍了图像去雾任务中常用的数据集和评价指标。在此基础上,对现有的代表性图像去雾算法的性能从定量和定性两个角度进行了分析和评估,对比了典型去雾算法在去雾效果、运行速度、资源消耗等方面的表现。最后,总结了图像去雾技术的应用场景,对图像去雾领域仍然存在的挑战以及未来的发展方向进行了分析和展望。

关键词： Transformer 图像去雾数字图像处理深度学习

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对于高校羽毛球教学方法的文献综述

当代体育科技 2024年第5期14卷 124-126页

作者：张衍秋高永奇王安治宁夏师范学院宁夏固原756000 湖北汽车工业学院湖北十堰442002

高校羽毛球体育教学现存问题主要集中在教学和教材两方面。教学方面主要是对体育教学指导思想的理解存在偏差;体育教学体系设置不完善;教学内容设置不科学;缺乏高水平的羽毛球教师队伍。学生学习兴趣不高,没有良好的学习态度。教材方面... 详细信息

高校羽毛球体育教学现存问题主要集中在教学和教材两方面。教学方面主要是对体育教学指导思想的理解存在偏差;体育教学体系设置不完善;教学内容设置不科学;缺乏高水平的羽毛球教师队伍。学生学习兴趣不高,没有良好的学习态度。教材方面主要是羽毛球场地数量少,满足不了正常的羽毛球体育教学,也满足不了学生练习和比赛的需要;同时羽毛球教材落后于羽毛球运动的发展,没有达到培养学生羽毛球技战术的要求。该文在体教融合的大背景下,根据教学和教材两方面存在的问题提出了相应的优化策略。

关键词：体教融合羽毛球体育教学优化策略

园林景观设计中土壤重金属污染风险治理方法研究

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环境科学与管理 2024年第7期49卷 173-177页

作者：柯俊刘兰余向阳王安致桂道乐中建三局工程设计有限公司湖北武汉430000

在园林景观设计建设过程中,易造成土壤的重金属污染,从而影响生态环境,对人类的生存及健康造成重大威胁,为此提出园林景观设计中土壤重金属污染风险治理方法。首先介绍了研究区域概况、样本采集方法和样本数据分析方法;其次获取民法典... 详细信息

在园林景观设计建设过程中,易造成土壤的重金属污染,从而影响生态环境,对人类的生存及健康造成重大威胁,为此提出园林景观设计中土壤重金属污染风险治理方法。首先介绍了研究区域概况、样本采集方法和样本数据分析方法;其次获取民法典主题公园设计施工前后十个采样点的土壤重金属含量数据,并分析重金属单因子污染指数、综合污染指数,划分污染等级。实验结果表明,园林景观设计建设会降低园林土壤中的重金属含量,减轻原有土壤的重金属污染等级,所提出的治理方法可以促进生态环境的改善。

关键词：重金属污染园林景观设计风险等级污染治理技术单因子污染指数

The APR triangle:A practical zone in the Glissonean approach to laparoscopic anatomical right hepatectomy

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iLIVER 2022年第3期1卷 176-180页

作者： Jie Chen Ziyu Zhang Rui Zhou anzhi wang Jun Cao Yajin Chen Department of Hepatobiliary Surgery Sun Yat-sen Memorial HospitalSun Yat-Sen UniversityGuangzhouChina Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation Medical Research CenterSun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhouChina

Background:An understanding of vascular anatomy is crucial for the safe performance of laparoscopic anatomical liver *** discovered a triangular zone during the laparoscopic right liver surgery and termed this zone the APR *** purpose of this study was to determine the probability of the existence of the APR triangle and elucidate its various ***:Analyzed three-dimensional image reconstructions of 66 individuals who underwent liver surgery and calculated the statistics for various types of APR triangles under various grouping ***:The APR triangle was present in the majority of cases,with right hepatic vein trunk type in 68%and right hepatic vein branch type in 21%,*** angle between the right anterior and right posterior hepatic pedicles(AP&PP)was at most between 45 and 90°(74%).There was a 35%chance that at least one of the AP&PP was longer than 2 cm,and a 39%chance that both *** right posterior pedicle first branch would appear at the bifurcation of AP&PP in 13%***:The APR triangle is objectively present and may represent a practical zone for performing laparoscopic right hepatic anatomical resection more simply and safely.

关键词： Laparoscopic anatomical liver resection Vascular anatomy ARP triangle

The Effects of Groundwater Depth on the Soil Evaporation in Horqin Sandy Land, China

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Chinese Geographical Science 2021年第4期31卷 727-734页

作者： YANG Tingting ALA Musa GUAN Dexin wang anzhi Key Laboratory of Forest Ecology and Management Institute of Applied EcologyChinese Academy of SciencesShenyang 110000China College of Environmental Science and Engineering Liaoning Technical UniversityFuxin 123000China

The interactions between groundwater depth and soil hydrological processes, play an important role in both arid and semi-arid ecosystems. The effect of groundwater depth on soil water variations were neglected or not explicitly treated. In this paper, we combine a simulation experiment and a water flow module of HYDRUS-1D model to study the variation in soil evaporation under different groundwater depth conditions and the relationship between groundwater depth and evaporation efficiency in Horqin Sandy Land, *** results showed that with an increase in groundwater depth, the evaporation of soil and the recharge of groundwater decrease. In this study, the groundwater recharge did not account for more than 21% of the soil evaporation for the depths of groundwater examined. The soil water content at 60 cm was less affected by the evaporation efficiency when the mean groundwater depth was 61 cm during the experimental period. In addition, the evaporation efficiency(the ratio of actual evaporation to potential evaporation) decreases with the increase in groundwater depth during the experiment. Furthermore, the soil evaporation was not affected by groundwater when the groundwater depth was deeper than 239 cm.

关键词： groundwater depth soil evaporation evaporation efficiency HYDRUS-1D

Photosynthate supply drives soil respiration of Fraxinus mandshurica seedlings in northeastern China： evidences from a shading and nitrogen addition experiment

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Journal of Forestry Research 2016年第6期27卷 1271-1276页

作者： Yanli Jing Dexin Guan Jiabing Wu anzhi wang Changjie Jin Fenghui Yuan Key Laboratory of Forest Ecology and Management Institute of Applied Ecology Chinese Academy of SciencesShenyang 110164 People's Republic of China University of Chinese Academy of Sciences Beijing 100049People's Republic of China

Improved understanding of the link between photosynthesis and below-ground processes is needed to better understand ecosystem carbon （C） cycling and its feedback to climate change. We conducted a short-term shading and nitrogen （N） addition experiment from June to September 2013 to investigate the effect of photosynthate supply by Manchurian Ash （Fraxinus mandshurica） seed- lings on soil respiration （SR）. Shading significantly reduced SR in early and middle growing season, but not in late growing season, leading to a decrease in mean SR by 24 % in N-unfertilized treatments. N addition increased mean SR by 42 % in un-shaded treatment. The stimulation of SR was largely attributed to accelerated autotrophic respiration by increasing photosynthesis, leaf area index and belowground biomass. Shading reduced mean SR by 32 % in N addition treatment. The strengthened shading effect on SR resulted from N addition was because of more photosynthates supply at low soil temperature. Our findings highlight the predominance of photosynthates supply in regulating the responses of C cycling to global change.

关键词： Autotrophic respiration Carbon Fertilization Shading Substrate supply

A Study on Service-Oriented Smart Medical Systems Combined with Key Algorithms in the IoT Environment

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China Communications 2019年第9期16卷 235-249页

作者： Shan Lu anzhi wang Shenqi Jing Tao Shan Xin Zhang Yongan Guo Yun Liu Department of Geriatrics the First Affiliated Hospital of Nanjing Medical UniversityNanjing 210029China Department of Health Education the First Affiliated Hospital of Nanjing Medical UniversityNanjing 210029China Engineering Research Center of Health Service System Based on Ubiquitous Wireless Networks Ministry of EducationNanjing University of Posts and TelecommunicationsNanjing 210003China

A smart medical service system architecture is proposed in this paper to increase medical resource utilization and improve the efficiency of the medical diagnosis process for complex business scenarios in the Medical Internet of Things(MIoT)*** resource representation model theory,multi-terminal aggregation algorithm,and the resource discovery algorithm based on latent factor model are also studied.A smart medical service system within the IoT environment is then developed,based on the open source *** results using real-world datasets illustrate that the proposed smart medical service system architecture can promote the intelligent and efficient management of medical resources to an extent,and assists in the develop towards digitization,intelligence,and precision in the field of medicine.

关键词： Internet of Things resource representationmodel resource discovery algorithm smart medical service system

Identification of Suitable Hydrologic Response Unit Thresholds for Soil and Water Assessment Tool Streamflow Modelling

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Chinese Geographical Science 2021年第4期31卷 696-710页

作者： JIANG Liupeng ZHU Jinghai CHEN Wei HU Yuanman YAO Jing YU Shuai JIA Guangliang HE Xingyuan wang anzhi Institute of Applied Ecology Chinese Academy of SciencesShenyang 110016China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Forest Ecology and Management^Institute of Applied Ecology Chinese Academy of SciencesShenyang 110016China Shenyang Arboretum Chinese Academy of SciencesShenyang 110016China

Use of a non-zero hydrologic response unit(HRU) threshold is an effective way of reducing unmanageable HRU numbers and simplifying computational cost in the Soil and Water Assessment Tool(SWAT) hydrologic modelling. However, being less representative of watershed heterogeneity and increasing the level of model output uncertainty are inevitable when minor HRU combinations are disproportionately eliminated. This study examined 20 scenarios by running the model with various HRU threshold settings to understand the mechanism of HRU threshold effects on watershed representation as well as streamflow predictions and identify the appropriate HRU thresholds. Findings show that HRU numbers decrease sharply with increasing HRU thresholds. Among different HRU threshold scenarios, the composition of land-use, soil, and slope all contribute to notable variations which are directly related to the model input parameters and consequently affect the streamflow predictions. Results indicate that saturated hydraulic conductivity, average slope of the HRU, and curve number are the three key factors affecting stream discharge when changing the HRU thresholds. It is also found that HRU thresholds have little effect on monthly model performance, while evaluation statistics for daily discharges are more sensitive than monthly results. For daily streamflow predictions, thresholds of 5%/5%/5%(land-use/soil/slope) are the optimum HRU threshold level for the watershed to allow full consideration of model accuracy and efficiency in the present work. Besides, the results provide strategies for selecting appropriate HRU thresholds based on the modelling goal.

关键词： hydrologic response unit hydrological model streamflow prediction upper Hunhe River watershed watershed representation uncertainty

基于通道注意力和边缘融合的伪装目标分割方法

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计算机应用 2023年第7期43卷 2166-2172页

作者：詹春兰王安志王明辉贵州师范大学大数据与计算机科学学院贵阳550025 四川大学计算机学院成都610065

伪装目标分割(COS)的目标是从背景中分离出隐藏的目标对象。近年来,基于卷积神经网络(CNN)的伪装目标检测(COD)发展迅速,然而仍存在无法从前/背景高度相似的场景中准确地检测出完整目标对象的问题。针对上述问题,提出一种基于通道注意力... 详细信息

伪装目标分割(COS)的目标是从背景中分离出隐藏的目标对象。近年来,基于卷积神经网络(CNN)的伪装目标检测(COD)发展迅速,然而仍存在无法从前/背景高度相似的场景中准确地检测出完整目标对象的问题。针对上述问题,提出一种基于通道注意力(CA)和边缘融合的COS方法CANet(Network based on Channel Attention and edge fusion),以得到伪装目标的边缘细节更清晰的完整分割结果。首先,引入压缩和激励(SE)注意力模块,以提取更丰富的高级语义特征;其次,提出一个边缘融合模块,抑制低级特征中的干扰,并充分利用图像的边缘细节信息;最后,设计了基于深度可分离卷积的通道注意力模块,以自上而下的方式逐步融合跨级的多尺度特征,进一步地提升检测精度和效率。在多个公开的COD数据集上的实验结果表明,相较于SINet(Search Identification Net)、TINet(Textureaware Interactive guidance Network)和C2FNet(Context-aware Cross-level Fusion Network)等8种主流的方法,CANet表现更佳,且能够获取到丰富的伪装目标内部及边缘细节信息,而且在具有挑战性的COD10K数据集上结构度量指标相较于SINet提升了2.6个百分点。CANet性能优越,适用于医学上检测与人体组织相似的病灶区域、军事领域检测隐蔽目标等相关领域。

关键词：伪装目标分割边缘融合压缩和激励注意力模块深度可分离卷积多尺度特征