基于ArcEngine的图像自动定位显示系统的开发

Image Automatic Locating and Display System Based on AE

主要研究如何利用由移动设备拍摄照片的Exif信息,使用Arc Engine二次开发工具实现图像在地图中的自动标注和显示。首先将野外采集的照片导入系统,系统根据照片中镶嵌的信息提取位置信息,将位置信息经过预处理得到符合坐标系要求的坐标信息,然后将照片和其对应的坐标信息导入数据库中,系统会根据坐标将每个位置的照片数量用标签的形式显示出来,通过单击标签即可查看相应位置的照片。通过实验验证,本文所研究系统可以将图像根据其概略拍摄位置标注在地图中,并可以实时查看。

This paper mainly studies the using of the Exif information of pictures taken by mobile devices ,and how to use ArcEngine secondly development tools to achieve image automatic annotation and display .Firstly,we should load the taken pictures to the system , the system will extract the location information based on the information embedded in the photo. After that,the location information will be transformed to the demanding coordinate system ,and the system will load the pictures and transformed location information to the system .Lastly,the number of photos in different location will be shown in the map using the format of label ,and the photos could didplay in the map by clicking the label .The results of experiments show the system could label the pictures in the map according to their location automatically ,and the pic-tures could display according to the demand of users .