摘要
MAXAR公司利用其专有的超分辨率算法,推出了30 cm分辨率高清立体影像像对,是目前分辨率最高且可提供立体像对的商用卫星数据。本文以实测控制点校正、匹配控制点校正及无控制点校正三种方式对25 km2的数据进行处理,并测试三种情况下的立体像对测图精度。实验结果表明,该立体像对基本符合2.3 m标称无控定位精度,在卫星侧视角不大的情况下,采用实测控制点方式或匹配控制点方式校正有理多项式系数(Rational Polynomial Coefficient,RPC)后构建的立体像对,均能满足1∶2000地形图测制及相关系列数字产品的生产需求。
Using its proprietary super resolution algorithm,MAXAR company has developed a 30 cm resolution HD stereo image pair,which is the commercial satellite data with the highest resolution of stereo image pair at present.In this paper,the data of 25 km2 were processed by three methods of actual control point correction,matching control point correction and no control point correction,and the mapping accuracy of stereo image pair under three conditions was tested.The experimental results showed that the stereo image pair basically was consistent to the nominal positioning accuracy of 2.3 meters.When the satellite side view angle is not large,the stereo image pairs constructed by measured control points or matching control points to corrected RPC could meet the production requirements of 1∶2000 topographic map measurement and series of digital products production.
作者
罗火箭
LUO Huojian(Fujian Provincial Institute of Surveying and Mapping, Fuzhou Fujian 350003, China)
出处
《北京测绘》
2021年第8期1069-1073,共5页
Beijing Surveying and Mapping
关键词
超分辨率
有理多项式系数(RPC)
平差校正
密集匹配
精度检测
侧视角
super resolution
Rational Polynomial Coefficient(RPC)
adjustment correction
dense matching
accuracy detection
side watch angl
