资源描述:
《A Generic Camera Model and Calibration Method for Conventional, Wide-Angle, and Fish-Eye Lenses.pdf》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、IEEETRANSACTIONSONPATTERNANALYSISANDMACHINEINTELLIGENCE,VOL.28,NO.8,AUGUST20061335AGenericCameraModelandDaniilidis[13]introducedaradialfundamentalmatrixforCalibrationMethodforConventional,correctingthedistortionofwide-anglelenses.Nevertheless,theWide-Angle,andFish-Eye
2、Lensesemphasisintheseapproachesismoreintheautocalibrationtechniquesthanintheprecisemodelingofreallenses.Inthispaper,weconcentrateonaccurategeometricmodelingofJuhoKannala,StudentMember,IEEE,and1realcameras.Weproposeanovelcalibrationmethodforfish-eyeSamiS.Brandt,Member,
3、IEEElensesthatrequiresthatthecameraobservesaplanarcalibrationpattern.ThecalibrationmethodisbasedonagenericcameraAbstract—Fish-eyelensesareconvenientinsuchapplicationswhereaverywidemodelthatwillbeshowntobesuitablefordifferentkindofangleofviewisneeded,buttheiruseformeas
4、urementpurposeshasbeenlimitedomnidirectionalcamerasaswellasforconventionalcameras.First,bythelackofanaccurate,generic,andeasy-to-usecalibrationprocedure.WeinSection2,wepresentthecameramodeland,inSection3,henceproposeagenericcameramodel,whichissuitableforfish-eyelensca
5、merasaswellasforconventionalandwide-anglelenscameras,andacalibrationmethodtheoreticallyjustifyitbycomparingdifferentprojectionmodels.Inforestimatingtheparametersofthemodel.TheachievedlevelofcalibrationSection4,wedescribeaprocedureforestimatingtheparametersofaccuracyis
6、comparabletothepreviouslyreportedstate-of-the-art.thecameramodel,andtheexperimentalresultsarepresentedanddiscussedinSections5and6.IndexTerms—Cameramodel,cameracalibration,lensdistortion,fish-eyelens,wide-anglelens.2GENERICCAMERAMODELæSincetheperspectiveprojectionmodel
7、isnotsuitableforfish-eye1INTRODUCTIONlensesweuseamoreflexibleradiallysymmetricprojectionmodel.THEpinholecameramodelaccompaniedwithlensdistortionThisbasicmodelisintroducedinSection2.1andthenextendedwithmodelsisafairapproximationformostconventionalcameraswithasymmetricd
8、istortiontermsinSection2.2.Computationofback-narrow-angleorevenwide-anglelenses[1],[2],[3].But,itisstillprojectionsisdescrib