2.數(shù)字近景工業(yè)攝影測量關鍵技術研究與應用

1、Y850379數(shù)字近景工業(yè)攝影測量關鍵技術研究與應用StudyontheKeyTechnologiesofDigitalCloseRangeIndustrialPhotogrammetryandAppfications一級學科：儀器科學與技術學科專業(yè)：測試計量技術及儀器研究生：黃桂平指導教師：葉聲華院上李廣石教授天津大學精密儀器與光電子工程學院二零零五年五月ABSTRACTTheprinciplesandcharacteristicso

2、f8kindsoflargescale3DcoordinatemeasurementsystemaresummarizedaccordingtOthecurrentsofmodernmeasurementtechnologiesAseriesofresearchiscarriedoutonthekeytechnologiesofdigitalcloserangeindustrialphotogrammetry，suchasthebasi

3、cmeasurementtheory，centersubpixellocalizationofcircularretroreflectivetargetscalibrationofdigitalcamera，automaticimagepoints’matchandoptimizationofmeasurementnetworksThisdissertation’Smainworkisasfollowing：1Thetechnologi

4、esofdifferentlargescalemeasurementsystemsarediscussedThedevelopmentofdigitalcloserangephotogrammetryandit’Srelationwithcomputervisionareanalyzed2Thebasictheoryofdigitalcloserangephotogrammetryisdeducedfromthepointofproje

5、ctivegeometryThesinglecalnc]rageomotry，thegeometryoftwocamerasandmultistationconvergentgeometryareanalyzeddetailedlyAnewmethodofcoordinatesacquisitionusingonesinglecalnerastationisputforwardThetheoryofsimplifiedsolutiono

6、fnormalequationisprovedstrictly3TheprincipleofretroreflectivematerialiSresearchedThecircularretroreflectivetargetsareproducedThecenterlocalizationreaches002pixelsbytheellipsebestfitofsubpixeledgeimagepoins4The10parameter

7、smodelisusedtocompensatethesystematicerrorsofdigitalcameraThecalibrationmethodsoftestrangeandselfcalibrationareresearchedAserialsofcalibrationtestsofcommonandspecialcameraarecarriedoutAmoreaccurateresultisgottenbytheself

8、calibration5TheprincipleofcodedtargetsisresearchedOnetypecodedtargetsareproducedanddecodedsuccessfullyThefullautomaticRRTsmatchisachievedbytheepipolarlinerestrictioncondition6Theimpacttoaccuracyofnetworkgeometryisanalyze

9、dThentherulesofdesignofmeasurementnetworkareputforwardThepracticalresultsdemonstratethattheaccuracyisaffectedgreatlybythenetworkgeometry7Thetechnologyofdigitalcloserangephotogrammetryisappliedsuccessfullyinseveralpractic