IKONOS卫星立体像对几何模型解算及三维定位精度分析

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1、西南交通大学硕士学位论文IKONOS卫星立体像对几何模型解算及三维定位精度分析姓名：丁琼申请学位级别：硕士专业：摄影测量与遥感指导教师：刘国祥20080401西南交通大学硕士研究生学位论文第1I页影响。实验结果显示，RPC的精度因GCP的布设不同而有较大差异，在影像四个角点布设控制点定位精度最高。5、基于IKONOS立体像对进行三维重建分析及精度评定。研究结果表明，商家RPC的测绘精度，在无控制点信息加入的情况下可达到：X、Y、z方向中误差分别为1．199m、0．866m、0．842m。达到IKONOS的lm标称精度。基于地形解

2、算RPC精度为X：0．456m，Y：1．232m，Z：1．130m。因此，在未知传感器模型参数或无法获取商家RPC时，可用此方法解算。此外，提取出的DTM城区精度明显高于山区精度，这可归因为山区地形特征点少，影像匹配困难，从而导致精度降低。关键词：高分辨率卫星遥感，有理函数模型，有理多项式系数，三维重建，精度西南交通大学硕士研究生学位论文第1II页AbstractInrecentyears，thetechnologyforhighresolutionremotesensinghasbeenimprovedgreatly．Aeri

3、alphotographyhasgotridofthephasethatitcanonlyproducesmallareatopographicalmaps，andhasbecomeawayofmappinglargeareatopographicalmaps．WiththesuccessfullaunchandexpansiveapplicationofIKONOSsatelliteimagery,muchattentionhasbeenpaidtothefieldofpositioningwithhi。ghresolutio

4、nstereoimages．However'satellitephotogrammetrycanbemorecomplicatedthanaerialphotogrammetryforthattheformeruseslinearsensorarraysthatSCanagroundstripwhilethesatellitemovesforward．ThehigllorbitalaltitudeandthenarrowbeamoflightcaUSethestrongcorrelationbetweenthegeometric

5、parameters．Itistoomuchdifficulttosolvetheorientationparameters．So，akindofreplacementsensormodel(i．e．RationalFunctionModel)comeswiththetideoffashion．Inthisthesis，RationalFunctionModelfRVM)whichisthephysicalsensormodelofIKONOSsatellitehasbeenanalyzed．Theinvestigationpe

6、rformedinthisthesisandrelevantconclusionsareoutlinedasfollows：‘First，thisthesisanalyzedtheimagingmechanismofIKONOSsatelliteandsometypicalkindsofsensormodels．TheRationalFunctionModelwhichisthesensormodelofIKONOSsatelliteisemphasized．Second，twowaysofsolvingtheRationalP

7、olynomialCoefficientswhichwereterrainindependentandterraindependentsolutionswereinvestigated．Andthethree—dimensionaldeterminationprocedurebasedonthesetwomethodsWasexaminedseparately．．Third，terrainindependentsolutionbasedonthephysicalsensormodelandnogroundinformationw

8、asinvolved．TheresearchwasstudyingthedifferentorderofRFMbycomparingthefirst—orderterms，thesecond·ordertermsandthethird—order西南交通大学硕士