摘要
介绍了利用ERDAS IMAGINE对卫星影像进行几何纠正的流程,分析了采用多项式变换作为几何校正模型的优缺点。地面控制点(GCP)的选取和判读是影像纠正的关键步骤,总结了在实际作业中GCP选取的规律及经验。
The article describes the process of geometric correction of satellite imagery using ERDAS IMAGINE,analyze the advantages and disadvantages of using the polynomial transform as a geometric correction model.Selection and interpretation of ground control points(GCP) is a key step for image rectification,the author summarizes the laws and experiences of GCP selection in the actualoperation.
出处
《测绘与空间地理信息》
2013年第1期143-145,共3页
Geomatics & Spatial Information Technology
关键词
几何纠正
多项式变换
地面控制点GCP
geometric correction
polynomial transformation
ground control point GCP
