中文摘要：

遥感数据的几何精校正是生成遥感数据产品及将遥感数据用于进一步数据分析前重要的一步。几何精校正的效果将直接影响到影像地理参考的精度,进而影响到在许多遥感数据分析中都要用到的地物能否精确定位的问题。因此几何精校正是遥感科研工作中基础的必可可少的工作之一。本文介绍了利用1：100000比例尺地形图及ERDASIMAGINE8.6软件,采用2次多项式模型,对关中平原TM影像进行几何精校正的方法。结果表明：当保留25个控制点时,校正后误差为0.63个像元,校正后影像具有较高精度,可以用于遥感信息的提取以及为地理信息系统等提供可使用的数据。

英文摘要：

Geometric correction is an important step for preprocessing geo-coded remote sensing data and also for further data analysis.The effect of geometric correction affects the accuracy of geo-reference of the images directly,and then affects the accurate positioning of the object which plays an essential role in many remote sensing researches.In this paper,The method on selection of the 1：100 000 topographic maps and satellite images,geometric correction was introduced and tested with the software ERDAS IMAGINE 8.6.The results show that the root mean square error is about 0.63 pixel when 25 ground control points are selected,and indicate that the geometric precise correction of high spatial resolution satellite image using topographic maps is perfect and this can supply the data for remote sensing information extraction and using in Geographical Information System.