摘要
采用有理函数模型对高分一号卫星多光谱高分辨率相机(PMS)传感器全色图像进行正射校正,采集检查点检验正射后全色图像几何精度,获取全色图像的正射精度,为用户了解高分一号卫星全色图像正射精度提供参考依据。试验结果表明,高分一号卫星2m分辨率的全色图像正射精度为1.6m,折合成像素精度为0.8个像素,能满足1∶1万比例尺地形图更新要求。经过初步分析,高精度高程数据能进一步提高高分一号卫星全色图像的正射精度。
After the successful launch of GF-1satellite,to understand the accuracy of its pan ortho-image has extensive demands.This paper used the rational function model to rectify the pan image of GF-1PMS sensor,then collected check points to test the geometric accuracy.The purpose of the test is easy for users to understand the precision of GF-1pan orthoimage.The test results show that the average accuracy of panchromatic otho-image in GF-1satellite is 1.62 meters,converted into pixel precision is 0.81 pixel,can meet the requirements of 1∶10000scale topographic map updating.After a preliminary analysis,high precision digital elevation data can further improve the ortho-rectification accuracy of GF-1panchromatic orthoimage.
出处
《遥感信息》
CSCD
北大核心
2015年第2期85-88,共4页
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