相机标定误差因素分析

201211172012Sum.No117INFORMATION&COMMUNICATIONS11232(1.1000722.100843.10083)15-20O242.2A1673-1131201201-0028-03AnalysisofFactorsontheErroroftheCameraCalibrationAbstractInordertoimprovetheaccuracyofcameracalibration,thefactorsthatinfluenceitmustbeconsidered.Somemainfactorsareanalysedcomprehensively.Thecurvesofthedistributionoftheerrorofthefeaturepoints'restructureofthesefactorsareobtained.Computersimulationandrealdataexperimentsdemonstratethatinthelinearcalibrationmethodofnonlinearcam-eramodel,theprecisionofthefeaturepoints'coordinatesinfluencethecalibrationaccuracytoagreatextent;Theappropriatecalibratedimagenumberisbetween15and20.Theresearchmayprovidereferenceformodelplanesmaking,calibratedimagenumberdeterminationandefficientcameracalibrating.KeywordsCameraCalibration;Errors;FactorAnalysis0[4][2][3]OpenCV14PZcXcYc(U,V)PwPd43[4]11dxdyXYu0v0fxfyXYR3×3tZ=02HH3×34XYZu,v8[5]H22.1i(i=1,2,3,4,)24(3)Hu,v0XYZ[6]2.2HHH9823VC++6.0OpenCv3.11k1=-0.043275k2=0.03140440404040111-15212[7]40200221.52%3.2GRD10003648×2736600×450mm9×13z014034203134210550.5114201[1].[J].2008,4420229-231.[2].[J].2008Vol.30557-559.[3]Zheng-youZhang.AflexibleNewTechniqueforCameraCalibration[J].IEEETransactionsonPatternAnalysisandMachineIntellgence,2000,22(11):1330-1334.[4].[M].:,2005.[5],.[J]..2010,25(1).16-20.[6],,.[J]..2010,8(4).18-21.1988-(27)2UdsIdsIdsUds2Fig.2thevoltage,currentwaveformonthemainswitch3UC3854[1],,.[M].:,1998.[2].[M].:,2010.(1984-)1988-)1957-