基于ERDAS IMAGINE进行ETM影像几何精校正研究——以新疆阿热勒托别地区为例

Research of ETM Imagery Geometric Precision Correction Supported by ERDAS Imaging Software——Taking Areletuobie Xinjiang as An Example

介绍了利用ERDAS IMAGINE对新疆阿热勒托别地区ETM影像进行几何精校正的方法:先利用ArcGIS对地形图进行坐标配准,然后进行几何粗校正,最后进行几何精校正。通过对校正结果的误差分析并与该地区矢量图比较可知:该方法的校正精度可达到一个像元以内,可以满足工作要求。

Remote sensor imagery geometric precision correction is an indispensably technological preparation for imagery processing. In this paper, a method of ETM imagery geometric precision correction for Areletuobie, Xinjiang based on ERDAS IMAGINE is discussed： firstly, have the coordinate of the relief maps matching based on ArcGIS; secondly, do geometric rough correction; finally, do geometric precision correction. Through the error analysis for correction result and compared with the vector data of that area we can draw a conclusion that the correction accuracy of this method was less than one pixel and this method could be used to achieve the demand of work.