多时相遥感图像相对辐射校正

10320065JOURNALOFREMOTESENSINGVo.l10,No.3May,2006:2005-03-28;:2005-08-19:(40371090):(1978)),,2000,;2003,E-mai:[e-mail]:1007-4619(2006)03-0339-06张鹏强,余旭初,刘智,李建胜,万刚(,450052):,,,,:;;;;:TP751.1:AAStudyonRelativeRadiometricCorrectionofMultitemporalRemoteSensingImagesZHANGPeng-qiang,YUXu-chu,LIUZh,iLIJian-sheng,WANGang(InstituteofSurveyingandMapping,InformationEngineeringUniversity,Henan,Zhengzhou450052,China)Abstract:Therelativeradiometriccorrectionisthefirststepofprocessingandanalyzingofmultitemporalremotesensingmiages.Inthispaper,anewmethodbasedonwavelettransformisproposedonthebasisofathroughstudyonthethreetraditionalones.Thisnewmethodwasmiplementedbydoingrelativeradiometriccorrectiononlyonthelowfrequencycomponentofwavelettransformdomainofthesourcemiage,andjustremainingthehighfrequencycomponentsunchanged.Thereconstructedmiagehasthecharacteristicofkeepingthehighfrequencyinformation,sotheradiometricdiversitiesinthesourcemiageduetogroundchangesarereserved.Keywords:multitemporalremotesensingmiages;radiometriccorrection;grayleveldistribution;radiometriccharacteristic;wavelettransform1,,,[1,2],[3],[3)5],,,[1,6],,34010,[7,8](),,,,,,,,;,,,,,,,,22.1,,,,,(),,,[9,10]ArAf,Ar2.2,,,,:gd-LfRf=gr-LrRr(1),gd,LfRf,grLrRr(1),:gd=gr-LrRr@Rf+Lf(2)[1],,,2.3(PIF)Schott[11],,:gd=k@gr+b(3),gdgr2.2,kb,,;,3[9,10],,,,,,,,3:341,,,,,,11Fig.1Theradiometriccorrectionmethodbasedonwavelettransform,;,,,PIF,44.11995-12-112000-08-10LandSat5TM10LandSat7ETM+,530m@30m,,,324@353(2)342102,:,();,(),,2(b)2(a)4.22(b)2(a),2(b),2(a)PIF27();,Mallat,Daubechies[12,13]33,4,2(a)2(b)11Table1AcomparisonoftheGrayleveldistributionsofthetestimages2(a)30.4017.1832[0,155][0,77]99.712(b)87.5837.3093[12,222][16,170]99.293(a)89.6934.9694[24,221][24,175]99.623(b)88.7235.1792[28,255][28,180]99.49PIF3(e)78.0523.8880[36,255][36,144]99.673(f)88.5734.3392[22,255][25,180]99.6231,,PIF,½G:½G=1(m-1)@(n-1)Em-2x=0En-2y=0G[g(x,y)](4),m,n,G[g(x,y)]U[g(x,y)-g(x+1,y)]2+[g(x,y)-g(x,y+1)]2(x,y),22Table2Acomparisonoftheaveragegradientsofthetestimages2(a)2(b)3(a)3(b)PIF3(e)6.99040412.73680413.85286714.4123659.80332311.0300158.8811127.7380526.8624637.4219612.8129194.0396111.8907080.7476482,,,2,PIF(2181291941039611),,3:34332(a)(a);(b);(c)(a);(d)(b);(e);(f);(g)(e);(h)(f)Fig.3Theresultsofradiometriccorrectionofthetestimage2(a)(a)Theresultofhistogram-matching;(b)Theresultofstatisticalquantitiesmethod;(c)Thehistogramof(a);(d)Thehistogramof(b);(e)TheresultofPIFmethod;(f)TheresultofWaveletTransformmethod(g)Thehistogramof(e);(h)Thehistogramof(f)344105,,,,,,(References)[1]DaiX,KhorramS.TheEffectsofImageMisregistrationontheAccuracyofRemotelySensedChangeDetection[J].IEEETransactionsonGeoscienceandRemoteSensing,1998,36(9):1566)1577.[2]BruzzoneL,SmitsPC,TiltonJC.Foreword)SpecialIssueonAnalysisofMultitemporalRemoteSensingImages[J].IEEETransactionsonGeoscienceandRemoteSensing,2003,41(11):2419)2422.[3]HallO,HayGJ.AMultiscaleObject-specificApproachtoDigitalChangeDetection[J].InternationalJournalofAppliedEarthObservationandGeoinformation,2003,4:311)327.[4]BruzzoneL,PrietoDF.AutomaticAnalysisoftheDifferenceImageforUnsupervisedChangeDetection[J].IEEETransactionsonGeoscienceandRemoteSensing,2000,38(5):1171)1182.[5]BruzzoneL,PrietoDF.AnAdaptiveSemiparametricandContext-basedApproachtoUnsupervisedChangeDetectioninMultitemporalRemote-sensingImages[J].IEEETransactionsonGeoscienceandRemoteSensing,2002,11(4):452)466.[6]LiD,SuiH,XiaoP.AutomaticChangeDetectionofGeo-spatialDatafromImagery[A].IAPRS[C].Vo.lXXXIV,Part2,CommissionII,Xi.an,2002.[7]RemoteSensingSeminar.ADetailedExplanationofRemoteSensing.(TranslatedbyLiuYW,HeXH)[M].Beijing:SurveyingandMappingPress,1993.[[].(,)[M].:,1993.][8]ZhuSL,ZhangZM.AcquisitionandAnalysisofRemoteImages[M].Beijing:SciencePress,2000.[,.[M].:,2000.][9]GonzalezRC,WoodsRE.TranslatedbyRuanQQ,RuanYZ.DigitalImageProcessing,SecondEdition[M].Beijing:PublishingHouseofElectronicsIndustry,2003.[[]GonzalezRC,WoodsRE,,.()[M].:,2003.][10]CastlemanKR.TranslatedbyZhuZG,LinXY,ShiDJ.DigitalImageProcessing[M].Beijing:PublishingHouseofElectronicsIndustry,2002.[[]CastlemanKR,,訚,石定机译.数字图像处理[M].北京:电子工业出版,2002.][11]SchottJR,SalvaggioC,VolchokWJ.RadiometricSceneNormalizationUsingPseudo-invariantFeatures[J].RemoteSens.Environ.,1988,26:1)16.[12]ZhuSL,GengZX.TheApplicationsofWaveletTheoryinImageProcessing[M].Beijing:PLAPress,1999.[,.[M].:,1999.][13]DaubeChiesI.OrthonormalBasesofCompactlySupportedWavelets[J].CommunicationonPureandAppliedMathematics,1988,41(7):909)996.