基于移動(dòng)最小二乘曲面多視數(shù)據(jù)對(duì)齊方法研究

1、華中科技大學(xué)碩士學(xué)位論文基于移動(dòng)最小二乘曲面多視數(shù)據(jù)對(duì)齊方法研究姓名：譚志輝申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：機(jī)械設(shè)計(jì)及理論指導(dǎo)教師：王啟富黃運(yùn)保20110115華中科技大學(xué)碩士學(xué)位論文IIAbstractMultiviewpointdataregistrationisnotonlythefundamentaldataprocessinreverseengineeringbutalsothekeytechnologyofmultisensbase

2、dclosedloopmeasurementsystem.Itisdifficulttoachievebetterresultwiththeexistingmethodsfmultiviewpointdataregistrationastheyareaffectedbythemeasurementnoisethecomplicatedshapeoftheobjectmeasured.Therefeitisvaluedftheresear

3、chonmultiviewpointdataregistrationtosomeextent.Themethodofregistrationfmultiviewpointdataisstudiedsystematicallyinthisthesisthemainresearchesinclude:1.Thereconstructionofsurfacefromtheinputpointdatacanimprovetheaccuracyo

4、ftheregistrationresulthoweverthesegmentationmodelionareindispensiblefthesurfacereconstructionbothofthemarestillunderstudy.AimingatthisproblemamethodcombiningwithMovingLeastSquares(MLS)surfaceisproposed.Asasmoothmanifolda

5、pproximationfromthepointdatatheMLSsurfaceneedsnosegmentationmodelion.2.ThecomputationfthogonalprojectionfrompointtoMLSsurfaceisthekeytechniquefbuildingthecrespondingpointrelationwhichisindispensibletoregisterthepointdata

6、indifferentviewsontotheMLSsurfacethroughtheICPregistration.Anumericalalgithmofsecondderconvergenceisproposedinthisthesistoimplementthecomputationofthethogonalprojectionefficiently.Theosculatingcircleisbuilttolocallyappro

7、ximatedtheintersectedcurveoftheMLSsurfaceinthealgithmtoacceleratetheconvergencesoastoimprovingtheefficiency.3.BasedontheresearchstatedaboveamethodofMLSsurfacebasedmultiviewpointdataregistrationisproposedimplemented.Meove

8、rcomparisonanalysisareexpedbetweensomeclassicmethodfmultiviewregistrationthemethodproposedinthisthesis.Thecomparisonshowsthatabetterresultofregistrationisobtainedthroughthemethodproposedinthisthesis.Keywds：Reverseenginee