江苏省土地调查遥感影像存储与管理研究

发布时间：2018-06-05 15:48

本文选题：遥感影像 + 土地调查　；参考：《南京师范大学》2013年硕士论文

【摘要】：遥感影像数据具有获得便捷、内容丰富、直观易读等特点,其在土地资源管理、生态环境监测、农业生产、抗震救灾和宇宙探索等领域获得日益广泛的应用,为我国经济的发展发挥了重要的作用。在全国第二次土地调查中,遥感影像数据的作用便得到了充分的发挥。就江苏省而言,在第二次土地调查中,省国土资源部门积累了大量的影像数据。当前的影像存储与管理技术存在影像从获得、入库、处理到应用的时间长,显示效率不高的问题,不能满足海量影像数据的存储与管理的需求,所以,如何对土地调查中的海量遥感影像数据进行高效存储与管理,缩短影像从获取、处理到应用的时间,提高显示效率,成为当前需要解决的问题。本文通过文献综述法、对比分析法和理论分析与实证分析相结合法对江苏省土地调查海量影像数据的高效存储与管理方法进行研究,并用省级影像数据结合省级数据中心系统影像管理子系统进行实验验证,具体从以下几个方面进行了研究： (1)对第二次土地调查江苏省省级遥感影像数据的获取、影像的技术标准和精度进行介绍,进而分析省级遥感影像数据的特征；同时,对海量遥感影像数据的存储与管理研究相关的理论与技术,如分布式文件云存储、概视图等技术,进行阐述与分析。 (2)分析和比较当前常用的遥感影像数据的存储管理技术和存储结构,指出现有的这些存储模式存在的局限性；结合省级土地调查实际情况,分析了省土地调查影像数据的存储目标和存储需求,提出采用分布式文件云存储、“文件系统+数据库”结合的方式进行影像的存储管理。 (3)分析目前主流的影像数据的组织管理方式和影像压缩技术,指出目前所使用的地图瓦片技术应用上的局限性,以及几种影像压缩技术的优缺点；同时,结合省级影像的海量性等特点,确定采用镶嵌数据集来组织管理影像数据,并利用金字塔和概视图相结合的索引方法来高效管理与显示影像；分析土地调查对遥感影像压缩的需求,并通过所选择的几种常用的影像压缩技术的对比试验,确定采用JPEG_YCbCr压缩技术进行影像数据的压缩。 (4)选择江苏省第二次土地调查省级数据中心系统影像管理子系统作为实验平台,利用2009年省遥感影像数据对本文的影像存储与组织管理方法进行验证,并与地图瓦片技术实验进行对比,最后对实验结果进行了分析。
[Abstract]:Remote sensing image data have been widely used in land resource management, ecological environment monitoring, agricultural production, earthquake relief and space exploration. For China's economic development has played an important role. In the second land survey, the role of remote sensing image data has been given full play. As far as Jiangsu Province is concerned, in the second land survey, the provincial land and resources department has accumulated a lot of image data. The current technology of image storage and management has the problems of long time of image acquisition, storage, processing and application, and low efficiency of display, which can not meet the needs of storage and management of massive image data, so, How to efficiently store and manage the massive remote sensing image data in land survey, shorten the time from acquisition, processing to application, and improve the efficiency of display have become the problems that need to be solved at present. In this paper, the efficient storage and management method of massive image data of land survey in Jiangsu Province is studied by means of literature review, comparative analysis, theoretical analysis and empirical analysis. And the provincial image data combined with the provincial data center system image management subsystem for experimental verification, specifically from the following aspects of the study: 1) introduce the acquisition of provincial remote sensing image data, the technical standard and precision of the second land survey of Jiangsu Province, and then analyze the characteristics of the provincial remote sensing image data. The theory and technology related to the storage and management of massive remote sensing image data, such as distributed file cloud storage, general view and so on, are expounded and analyzed. (2) analyzing and comparing the storage management technology and storage structure of the commonly used remote sensing image data, pointing out the limitations of the existing storage modes, combining with the actual situation of the provincial land survey, This paper analyzes the storage target and storage requirement of the image data of the provincial land survey, and puts forward the method of using the distributed file cloud storage and the "file system database" to store and manage the image. 3) analyzing the organization and management of the mainstream image data and image compression technology, pointing out the limitations of the current application of map tile technology, as well as the advantages and disadvantages of several image compression techniques, at the same time, Considering the characteristics of provincial image magnanimity, the mosaic data set is adopted to organize and manage the image data, and the index method of pyramid and general view is used to efficiently manage and display the image. This paper analyzes the demand of land survey for remote sensing image compression, and through the comparative tests of several commonly used image compression techniques, determines to use JPEG_YCbCr compression technology to compress image data. 4) selecting the image management subsystem of the provincial data center system of the second land survey of Jiangsu Province as the experimental platform, using the 2009 provincial remote sensing image data to verify the method of image storage and organization management in this paper. The experimental results are compared with those of map tile technology, and the experimental results are analyzed at last.
【学位授予单位】：南京师范大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P237;P273

【引证文献】