中南林业调查规划
中南林業調查規劃
중남임업조사규화
CENTRAL SOUTH FOREST INVENTORY AND PLANNING
2011年
4期
47-49,52
,共4页
遥感影像处理%正射校正%SPOT5影像%PCI%DEM
遙感影像處理%正射校正%SPOT5影像%PCI%DEM
요감영상처리%정사교정%SPOT5영상%PCI%DEM
remote sensing image processing%ortho-rectification%SPOT5 image%PCI%DEM
正射校正是各种遥感应用过程中必不可少的基础工作，对于某些地形起伏较大、常规的几何校正难以消除由此引起的几何变形的影像，有必要进行正射校正。正射校正的方法很多，以攸县黄丰桥林场柏市分场为研究区，以SPOT5高分辨率遥感影像为校正数据进行正射校正，采用Satellite Orbital Mod—elling模型和Rational Functions模型，针对不同方法所产生的正射影像图精度以及运算速度进行比较与分析。实验结果表明：在相同的控制点条件下，对于SPOT5数据来说，Satellite Orbital Modelling模型的精度更高，但是此模型计算速度相对稍慢一点。该研究对SPOT遥感影像能更正确地选择正射校正方法提供参考。
正射校正是各種遙感應用過程中必不可少的基礎工作，對于某些地形起伏較大、常規的幾何校正難以消除由此引起的幾何變形的影像，有必要進行正射校正。正射校正的方法很多，以攸縣黃豐橋林場柏市分場為研究區，以SPOT5高分辨率遙感影像為校正數據進行正射校正，採用Satellite Orbital Mod—elling模型和Rational Functions模型，針對不同方法所產生的正射影像圖精度以及運算速度進行比較與分析。實驗結果錶明：在相同的控製點條件下，對于SPOT5數據來說，Satellite Orbital Modelling模型的精度更高，但是此模型計算速度相對稍慢一點。該研究對SPOT遙感影像能更正確地選擇正射校正方法提供參攷。
정사교정시각충요감응용과정중필불가소적기출공작，대우모사지형기복교대、상규적궤하교정난이소제유차인기적궤하변형적영상，유필요진행정사교정。정사교정적방법흔다，이유현황봉교림장백시분장위연구구，이SPOT5고분변솔요감영상위교정수거진행정사교정，채용Satellite Orbital Mod—elling모형화Rational Functions모형，침대불동방법소산생적정사영상도정도이급운산속도진행비교여분석。실험결과표명：재상동적공제점조건하，대우SPOT5수거래설，Satellite Orbital Modelling모형적정도경고，단시차모형계산속도상대초만일점。해연구대SPOT요감영상능경정학지선택정사교정방법제공삼고。
Ortho-rectification is the essential basic work to the process of remote sensing applications, for some undulating terrain, conventional geometric correction is so difficult to eliminate the geometric distortion in the image, so ortho-rectification is necessary for the image. Ortho-rectification has many methods, it took Baishi sub- frame of Huangfengqiao forest farm in Youxian county as the research area, high-resolution remote sensing image of SPOT5 as the ortho-rectification data by using satellite orbital modelling model and rational functions model, we can compare and analyze the image precision and operating speed according to different methods. The experimental results showed that, the precision of satellite orbital modelling model is higher than rational functions model, but the satellite orbital modelling calculation speed slightly slow down a bit, which provided the reference for the correction method of SPOT5 remote sensing image according to the requirements of processing.
