摘要
本文根据影像正射纠正的基本原理和方法,提出了无控制点条件下的影像正射纠正理论估算公式,并据此公式对无控制条件点下的影像进行正射纠正理论精度估算,表明了在SRTMDEM支持下进行SPOT影像正射纠正具有较高的精度。并按此方法对杭州、重庆和大庆三个不同地形的区域制作DOM,然后利用我国1:1万地形图对其进行精度评定,实验结果证明正射纠正精度估算公式正确,同时利用SRTMDEM对SPOTHRG进行正射纠正得到的影像能够满足1:50000测图精度的要求。
Based on the principle of Ortho-Rectification, a theoretical estimation formula of Ortho-Rectification with no GCPs is presented. With this formula, the precision of the Ortho-Rectification image with the SRTM DEM data is estimated. The result shows that Ortho-Rectification Images produced by HRG image with the support of SRTM DEM have high accuracy. Using this method the DOM of Hangzhou, Chongqing and Daqing region are produced, and their accuracy are evaluated with 1：10 000 topographic maps. The results prove that the theoretical estimation formula is correct and the precision of the ortho-rectification images meets 1：50 000 mapping accuracy.
出处
《测绘科学》
CSCD
北大核心
2008年第3期82-84,共3页
Science of Surveying and Mapping
基金
高分辨率立体测图卫星的地面几何检校联合试验研究(2006DFA71570)
