积雪遥感监测实时计算显示关键技术研究  

Key technology of real-time calculation and display of remote sensing image

作　　者：扎西央宗[1] 叶帮苹 边多[1] 李林[1] 曾林[1] 牛晓俊[1] ZHAXI Yang-zong;YE Bang-ping;BIAN Duo;LI Lin;ZENG Lin;NIU Xiao-jun(Tibetan Institute of Atmospheric Environment and Science,Lhasa Tibet 850000,China;Sichuan Meteorological Observatory,Chengdu Sichua 610072,China)

机构地区：[1]西藏高原大气环境科学研究所,西藏拉萨850000 [2]四川省气象台,四川成都610072

出　　处：《河北省科学院学报》2018年第3期48-56,共9页Journal of The Hebei Academy of Sciences

基　　金：国家自然科学基金项目(41465006);2014年西藏自治区第一批重点科技项目;西藏自治区气象局高原遥感应用技术创新团队资助

摘　　要：近年来全球气候异常,各种灾害频发。人们越来越关注积雪影响天气气候的问题。越来越多的专家学者通过不同的遥感卫星资料对我国或全球积雪的空间分布和时间分布等特征进行研究。高效快捷的遥感信息提取手段对积雪的研究和监测具有非常重要的作用。该文首先研究了积雪监测的基本原理和图像显示的的关键方法;根据模型特征,探索了积雪监测模型计算融入图像显示的关键技术方法,即在遥感图像显示时,将要显示的结果抽象为一个遥感波段,该波段的每一个像元均由模型公式计算得到。该抽象的波段在显示重采样时,建立波段计算回调函数,由回调函数完成每一个显示像素的模型计算。实验证明,该文算法相对于传统方式,极大地提高了模型计算显示的效率,对于遥感信息建模具有非常重要的应用价值。通过对研究结果进行简单改进,可以应用到其他遥感信息建模研究中。In recent years,global climate anomalies,frequent occurrence of various disasters.People are increasingly concerned about the impact of snow on the weather and climate.An increasing number of experts and scholars have studied the spatial and temporal distribution of snow cover in China or the world through different remote sensing satellite data.Efficient and quick remote sensing information extraction method has a very important role in the research and monitoring of snow cover.In this paper,the basic principle of snow monitoring and the key methods of image display are studied in this paper; According to the model features,the key techniques of the snow cover monitoring model are explored.On this basis,to explore the key technology of the integration of remote sensing data processing into the image display.The key to solve the problem is to abstract the results of model formula as a remote sensing wave band,which is calculated pixel by pixel when displaying.Experimental results show that the proposed algorithm can greatly improve the efficiency of the model calculation,and it has a very important application value for the modeling of remote sensing information.Through the simple improvement of the research results,it can be applied to other remote sensing information modeling research.

关 键 词：积雪监测 参数调整 实时计算显示 

分 类 号：TP873[自动化与计算机技术—检测技术与自动化装置] P407[自动化与计算机技术—控制科学与工程]