CBERS-04星PAN/MUX图像几何定位精度评价  

Evaluation of Geometric Positional Accuracy of PAN/MUX Image for CBERS-04 Satellite

作　　者：魏丹丹[1] 甘甫平[1] 尚坤[1] 梁树能[1] 何娇 WEI Dandan;GAN Fuping;SHANG Kun;LIANG Shu’neng;HE Jiao(China Aero Geophysical Survey and Remote Sensing Center for Land and Resources,Beijing 100083,China;School of the Earth Sciences and Resources,China University of Geosciences(Beijing),Beijing 100083,China)

机构地区：[1]中国国土资源航空物探遥感中心,北京100083 [2]中国地质大学(北京)地球科学与资源学院,北京100083

出　　处：《无线电工程》2018年第5期401-405,共5页Radio Engineering

基　　金：国土资源部公益性行业科研专项(201511078)

摘　　要：CBERS-04星的成功发射,为国土资源、农业和林业等诸多领域提供服务支持。图像定位精度是衡量遥感影像应用价值的重要指标,从业务应用角度出发,通过对CBERS-04星全色/多光谱载荷获取的图像进行无控制点的RPC处理后,结合野外实测的42个控制点和利用实测控制点生产的Worldview-2正射影像为基础底图,比较控制点坐标值和图像上量算值的偏差,分别评价X和Y方向平均误差,研究不同遥感影像、不同地形地物类别的几何精度。研究发现5 m全色与10 m多光谱影像范围一致,单相机多光谱数据各波段间匹配精度高,5 m全色影像与10 m多光谱影像分别在X方向和Y方向上的误差对点位误差有较大影响。The satellite CBERS-04 can provide service and support for the land and resources survey,agriculture,forestry and many other fields.Image positional accuracy is an important indicator of the remote sensing image applications.In this article,from the view of business application,the CBERS-04 PAN/MUX image is processed using RPC parameters,and then combined with the field measured 42 points and the Worldview-2 orthographic images coming from those points,which are used as the base map.The deviation of the reference image and correction image is calculated,and then the X and Y direction mean error are evaluated respectively.This study can provide the geometric accuracy of different remote sensing images with different terrain features.In this study it’s found that the image range of PAN and MUX are consistent,the bands of MUX matches well with each other,the image position error of PAN and MUX in the X and Y directions produce a greater effect on the point position errors,respectively.

关 键 词：CBERS-04 RPC 图像配准 几何精度评价 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]