跨嵌入式平台的影像地图可视化技术研究  

Research on the Image Map Visualization Technology on Different Embedded Platforms

作　　者：刘爱龙[1,2] 张东 陈涛[1,2] 姚霄飞 Liu Ailong Zhang Dong Chen Tao Yao Xiaofei(Xi＇an Research Institute of Surveying and Mapping,Xi＇an 710054, China State Key Laboratory of Geo-Information Engineering,Xi＇an 710054, China)

机构地区：[1]西安测绘研究所,陕西西安710054 [2]地理信息工程国家重点实验室,陕西西安710054

出　　处：《测绘科学与工程》2017年第4期30-33,54,共5页Geomatics Science and Engineering

摘　　要：针对适应异构嵌入式平台的影像地图跨平台可视化问题，本文在金字塔模型的基础上，设计了适应嵌入式环境的影像数据逻辑组织模型和物理存储模型；以显示范围为依据，对数据的不同显示区域进行定义，并引入并行计算思想，采用多线程并行调度方法，构建了适合资源有限应用环境的影像数据动态调度机制；为了解决跨多种嵌入式平台的显示问题，基于中间件思想与跨平台语言相结合，设计实现了跨Android和WinCE平台的影像地图可视化控件，并在这两种平台上进行相关实验。实验表明，该控件能够较好地适应此两种嵌入式平台，显示效率满足嵌入式环境下影像地图可视化的效率要求，提高嵌入式环境下影像地图应用开发的效率。In order to solve the problem of cross-platform visualization of image map on heterogeneous embedded platforms, a logical organization model and physical storage model of image data are designed to adapt to embedded environment based on the pyramid model. Different display areas of the data are defined according to the display range, the parallel computing idea is intro- duced and multi-thread parallel scheduling method is adopted to construct the dynamic scheduling mechanism of image data in limited application environment. To achieve the goal of image displaying on multiple embedded platforms, a visual control of im- age map across Android and WinCE platform is designed and realized on the basis of combination of middleware idea and cross- platform language, and related experiments are conducted on both platforms. Experiment results show that the control is adaptable to both embedded platforms, the displayimg efficiency can meet image visualization requirements in embedded environment, and the application development efficiency of image map in such environment is improved as well.

关 键 词：嵌入式系统 影像地图 可视化 

分 类 号：P283[天文地球—地图制图学与地理信息工程]