基于ERDAS IMAGINE的扫描地形图快速校正方法  

Fast correction method of scanning topographic maps based on Erdas Imagine software

作　　者：吴志春[1,2] 郭福生[1] 姜勇彪[1,2] 刘林清[1,2] 

机构地区：[1]东华理工大学地球科学院,江西抚州344000 [2]东华理工大学江西省数字国土重点实验室,江西抚州344000

出　　处：《辽宁工程技术大学学报（自然科学版）》2011年第6期861-865,共5页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(U0933605);中国地质调查局地质调查工作项目(1212010818096);中国地质调查局区调项目(基[2010]矿评01-15-11);江西省数字国土重点实验室开放研究基金资助项目(DLLJ201106)

摘　　要：为了解决扫描纸质地形图得到的栅格图像会出现不同程度的变形,并且需对栅格图像赋予地理参考的问题,采用在mapgis投影变换系统生成标准图框,再在mapgis文件转换系统中将标准图框线文件(wl)转换成shape格式,然后在erdas imagine中运用shape格式的标准图框对扫描地形图得到的栅格图像进行校正的方法。研究结果表明:该校正方法精度高、速度快及操作简单容易。该方法使得地形图、地质图在遥感数字图像处理软件(erdas imagine、envi、pci等)中得以快速校正。The raster images scanned from paper maps may become distorted in various degrees and also the raster images bear topographical reference.In this study,the approach proposed is to correct the raster images transformed from the shape form with Erdas Imagine software.The shape form is transformed from the standard map frame using Mapgis software.The standard map frame is transformed within Mapgis＇s projection and transformation system.The result shows that this approach is very accurate,fast,simple and easy to use.Using this approach,topographic maps and geologic maps can be quickly corrected by digital map processing software in remote sensing（i.e.,Erdas Imagine,Envil and Pic）.

关 键 词：erdasimagine9.2 mapgis6.7 PHOTOSHOPCS3 地形图 几何校正 控制点 栅格图像 矢量图像 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]