遥感制图中几何纠正精度评价

Precision Evaluation of Geometry Correction in Remote Sensing Mapping Technology

在利用遥感图像的制图过程中,很多步骤存在误差,影响到成图的质量和可信度.对遥感制图精度的评价,是提高和改进制图精度的必要前提和有效方法.本文选取遥感制图中的几何纠正过程作为整个制图过程精度评价的切入点,对遥感图像处理软件,操作人员和不同分辨率遥感图像三个影响精度的主要因素进行分析.通过精度评价分析,可以得出:遥感图像处理软件和操作人员在多次操作的情况下,误差可以忽略不计,而不同分辨率的图像经过正确的制图匹配也可以得到较高的精度.

In the process of remote sensing mapping,many errors will be brought into different steps,which can affect the quality and the confidence level of the map. Thus,to analysis the precision of remote sensing mapping is an effective method to enhance and improve the charting precision.Because the geometry correction is the main step in remote sensing mapping process,the article selected geometry correction as the breakthrough point.It analyzed the remote sensing imagery processing software,the operator and the different resolutions of remote sensing image which affect the precision of the chart.Through the analysis of precision,we can conclude that： when we operate a lot of times,we can ignore the errors of the remote sensing imagery processing software and the operator.And the effect of different resolutions of remote sensing image can also be improved by correct mapping matching.