基于ZY3影像更新DLG软件开发的方案研究及实验

发布时间：2019-06-08 15:25

【摘要】：伴随着IKONOS、QuickBird、ZY3等高分辨率卫星遥感影像的广泛应用，目前，基于高分辨率卫星遥感影像采用全数字摄影测量的方法更新修测数字地形图的技术也基本成熟。但是突破传统的全数字摄影测量方法，采用半自动的手段更新修测数字地形图的软件却很少。因此基于ZY3影像，结合传统测绘手段，再辅助以计算机技术、遥感数据处理技术、地理信息数据处理技术来进行半自动地形图修测的软件平台的开发显然具有十分重要的意义。本论文就是在对这个软件的开发研制过程中产生的，所做的主要工作如下： (1)对基于ZY3影像进行DLG更新的软件开发的方案设计进行了研究，认为本软件的功能模块设计较合理，，便于操作人员理解。 (2)对基于ZY3影像进行DLG更新的软件开发的核心技术进行了研究，其核心功能包括：匹配本年度的正射影像数据和上一年度的正射影像数据，利用变化检测功能，提取出两期影像的变化区域；采用影像分割、以及面向对象的信息提取技术自动提取一部分几何要素；然后辅助以知识库对提取到的几何要素进行分类；最后结合人工手段对提取到的要素进行编辑处理，达到更新修测数字地形图的目的。 (3)与传统的更新修测软件相比，本软件将变化检测、影像分割、面向对象的信息提取、以及知识库技术结合使用，提高了地形图更新修测的半自动化程度。
[Abstract]:With the wide application of IKONOS,QuickBird,ZY3 and other high-resolution satellite remote sensing images, at present, the technology of updating and repairing digital topographic maps based on high-resolution satellite remote sensing images by all-digital photogrammetry is also basically mature. However, there are few software that break through the traditional all-digital photogrammetry method and update the digital topographic map by semi-automatic means. Therefore, based on ZY3 image, combined with traditional surveying and mapping means, and then aided by computer technology, remote sensing data processing technology, geographic information data processing technology to carry out semi-automatic topographic map reconstruction software platform development is obviously of great significance. This paper is produced in the process of the development of this software, the main work done is as follows: (1) the scheme design of DLG update software based on ZY3 image is studied. It is considered that the functional module design of the software is reasonable and easy for operators to understand. (2) the core technology of DLG updating software based on ZY3 image is studied. Its core functions include: matching the orthographic image data of this year and the orthographic image data of the previous year, and using the change detection function. The changing regions of the two phases of the images were extracted. Image segmentation and object-oriented information extraction technology are used to automatically extract some geometric elements, and then the extracted geometric elements are classified by knowledge base. Finally, the extracted elements are edited and processed by manual means to update and modify the digital topographic map. (3) compared with the traditional updating and testing software, this software combines change detection, image segmentation, object-oriented information extraction and knowledge base technology to improve the semi-automation of topographic map updating and revision.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP311.52;P237

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