数字近景摄影测量在隧道工程应用中的模型建立与解算研究

《数字近景摄影测量在隧道工程应用中的模型建立与解算研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、北京交通大学硕士学位论文数字近景摄影测量在隧道工程应用中的模型建立与解算研究姓名：胡特彧申请学位级别：硕士专业：摄影测量与遥感指导教师：杨松林20080601ABSTRACTABSTRACT：Somanytunnelprojectsareinprocess．butnonecancarryoutwithoutsurveying．Especiallywhencomestothesafetyoftheproject，manyresearcherspaytheirattentionstothecountryrockdeformationandthetunnel

2、contourmeasuring．Recently,somestudiesininternalorinternationallevelaretryingtoapplythedigitalclose—rangephotogrammetrymethodsintothetunnelprojectastoimprovetheefficiencyandtheprecision．Thispaperfollowstheirstepanddiscussestheapplyingmethodsofnon—metricdigitalcamerainthetunnelpro

3、ject，inordertofindoutaneconomic，convenienceandhigh·precisionmethod．Themethodstointroducedigitalclose-rangephotogrammetryintotunnelprojectareexpatiatedandanalyzedatthefirstplaceinthispaper，whichnotonlyincludeusingthedirectlineartransformationmethodtoresolvethethreedimensioncoordi

4、nateinformationofthepointsintwo—imagephotogrammetrytoacquirethecountryrockdeformationandthetunnelcontourinformation．butalsobringoutthemanlierandtheoryincountryrockdeformation，whichcomparesthesinglepictureineachperiodtocollectthechangesofthepointsintwodimensions．Furthermore，fluxo

5、flightbalancingmethodiSusedtoresolvetheseriesimagestogethighqualityresults．Astoassistthecalculationofthelattertwomethods．thecontentandmethodstocalibratethecameraarebeingstudiedinnecessary．Inordertocalibratetheelementsofinteriororientationandtheerrorsbringoutbyseveraldistortions．

6、wehavetodescribethemquantificationally．Theerrormodelsinthemethodsoftestrangecalibrationandself-calibration,whicharebeingchosenasappropriateways，werebuiltup．Then，themattersneedattentionintheexperimentarefigureoutandexecuteinthethreedimensioncontrollingfieldbeforeweachievethecalib

7、rationresult．Afterthat，themodelsofthedirectlineartransformationmethod，singlepictureineachperiodcomparisonmethodandfluxoflightbalancingmethodhavebeenbuiltupandresolvedstepbystep．ThemattersneedattentionintheexperimentarefigureoutandexecuteinthetullneIexperiment，whichhelpstoacquire

8、theinformation．Then．wecomparedtheresultsofthetw