扫描型红外图像实时目标检测研究

16420114JournalofImageandGraphicsVo.l16,No.4Apr.,2011:TP751.1:A:10068961(2011)04060006:,,.[J].,2011,16(4):600605:20090604;:20091021:(1978),,2007,Emai:[e-mail]孙宁,翟尚礼,赵春光(28,210007):,360,;,;,,DSP+FPGA,,,,:;;StudiesonrealtimetargetdetectionofscanninginfraredimagesSunNing,ZhaiShangl,iZhaoChunguang(The28thResearchInstituteofChinaElectronicsTechnologyGroupCorporation,Nanjing210007China)Abstract:Scanninginfraredimageryhasthecharacteristicsofgiantdata,complexbackground,heavyclutterandlowSNR.Arealtimeprocessingmethodisproposedtodetecttargetsonallazimuthscanninginfraredimagery.Theproposedmethodfirstlysuppressestheclutterandbackgroundstoenhancethetargetbypreprocess.Thenitadoptstwolevelfeatureextractiontodramaticallydecreasetheimagedata.Atlastaccordingtotheideaofinterframeimagegrayleveldependencies,accomplishesthetargetdetectionofscanninginfraredimages.ImageprocessingcardisdesignedbasedonDSP&FPGAprocessorwiththeadvantageofrealtimedataprocessinganddatatransmission.Theresultsshowthatthemethodisefficientandviable,theimageprocessingcardworksreliablyandstably,whichcansatisfywiththeneedofrealtimetargetdetectionofscanninginfraredimages.Keywords:scanninginfraredimages;targetdetection;realtimeimageprocessing0,,[1],,,,,,(IRFPA)[2],360,(1s),,,4:601,,,,,,,[38],[9],[10],,,,,,,,,,DSP+FPGA,,,115766,1,576,6,6,,(TDI)6,,,1,,,,1Fig.1Stripesbackgroundcausedbyelementnonuniform1.1,17,,17,,IF(x,y)=I(x,y)-Median(I(x,y-3),I(x,y-2),,I(x,y+3))(1)1.2,,,,[11],2~31,177,2778(b)(a)7,4,5611,,(x,y)f(x,y),8D1,D2,,D8f(x,y)f(x,y)=8i=1f(x,y)-173j=-33k=-3f(x+j,y+k)A(i)(2),ii,i=1,2,,8,j,k(-3j3,602);A(i)A(i)=1(x+j,y+k)Di0(3)2,:1)360,,,;2),,,,()();3),;4),,,3,5766,2.8s/57616200016bit2.157616200016bi,t1424MB2.8s,,,33Fig.3Flowchartofgrayvaluefeatureextraction4:603:1)641800099,99:576162000,64180002()2)889982250(8181,,)(+)399(B1,B2,B3),(CSFV),CSFVi,j=[Maxi,jB1,Meani,jB1,Maxi,jB2,Meani,jB2,Maxi,jB3,Meani,jB3](4)i=1,,8;j=1,,2250,576162000,822506,0.12%,3(+)99,,,(,)2.2,3.1(AT)((BSFV))(),BSFVBSFVi,j=155n=1CSFVi,jn(5),,(),5,ATi,j=14CSFVi,jn+1-CSFVi,jn(6),(BTF),:1,0BTF0,BTF2.3,82250,,CSFV,:1)(5)CSFVi,jn,FDFVi,jn=6K=1(CSFVi,jn(k)-BSFVi,jn-1(k))(7)BTFi,jn-1=1,2);BTFi,jn-1=0,3)2)BTFi,jn-1=1FDFVi,jn-ATi,jn-1:FDFVi,jn,,;FDFVi,jn,ATi,jn-1,,0.3~0.5,,BTFi,jn-1=1:BSFVi,jn=0.5BSFVi,jn+0.5CSFVi,jn-1(8)ATi,jn=0.9ATi,jn-1+0.1abs(FDFVi,jn)(9):,,BTFi,jn-1=0:BSFVi,jn=CSFVi,jn(10)ATi,jn=ATi,jn-1(11)3)BTFi,jn-1=0:FDFVi,jnATi,jn-1+Weight:,,BTFi,jn-1=1Weight,,:BSFVi,jn=CSFVi,jn(12)ATi,jn=ATi,jn-1(13)604=0:BSFVi,jn=0.9BSFVi,jn+0.1CSFVi,jn-1(14)ATi,jn=0.9ATi,jn-1+0.1abs(FDFVi,jn)(15)3FPGA,,DSP,,DSP,FPGA,5,,,;,,FPGA,DSPDSP+FPGA,44Fig.4Hardwarestructureoftheimageprocessingboard,6418000216bi,t1DSP,2DSP,DSP,2.8s,460,,5,,,(),1.6,,,6.2,67,(),,,,,,,4:6057Fig.7Thedetectionresultofimage,,;,,5,,,,,,,,,,,,(References)[1]DudzikMC.ElectroOpticalSystemsDesign,Analysis,andTesting[M]//TheInfraredandElectroOpticalSystemsHandbook.Bellingham,German:InfraredInformationAnalysisCenter,EnvironmentalResearchInstituteofMichiganandSPIEOpticalEngineeringPress,1993.[2]MeiSuisheng,WangRongru.iOptielectronicTechnologytheNewWorldofInformationWeaponEquipmentofInformation[M].Beijing:NationalDefenseIndustryPress,2008.[,.[M].:,2008.][3]MaybeckPS,MercierDE.Atargettrackerusingspatiallydistributedinfraredmeasurements[J].IEEETransactionsonACS,1980,25:222225.[4]XuY.Smallmovingtargetdetectionininfraredimagesequences[J].InfraredTechnology,2002,24(6):2730.[5]PengJiaxiong,ZhouWenlin.Infraredbackgroundsuppressionforsegmentinganddetectingsmalltarget[J].ActaElectronicaSinica,1999,27(12):4751[,.[J].,1999,27(12):4751.][6]HuJ,TungWW,GaoJB.Detectionoflowobservabletargetwithinseaclutterbystructurefunctionbasedmultifractalanalysis[J].IEEETransactionsonAntennasandPropagation,2006,54(1):136143.[7]WangGuoyou,ChenZhenxue,LiQiaoliang.Areviewofinfraredweakandsmalltargetsdetectionundercomplicatedbackground[J].InfraredTechnology,2006,5(28):287292.[,,.[J].,2006,5(28):287292.][8]ZhangChangcheng,YangDegu,iWangHongqiang.Algorithmsurveysfordimtargetstrackbeforedetectininfraredimage[J].Laser&Infrared,2007,37(2):104107.[,,.[J].,2007,37(2):104107.][9]HGHInfrared.InfraredPanoramicSurveillanceCamera[EB/OL].(20080109).[10]XuJiangfeng,ZhangYong,TangXiny,ieta.lResearchonrealtimesignalprocessingtechnologyoflargeviewfieldinfraredimagedetectingsystem[J].JournalofInfraredandMillimeterWaves,2006,25(6):421425.[,,,.[J].,2006,25(6):421425.][11]ZhangShijun,JingZhongliang,LiJianxun.Rotatingmeanfilteranditsapplicationtotheimprovementofthesignaltonoiseratioofinfraredpointtargetimages[J].Laser&Infrared,2004,34(5):391394.[,,.[J].,2004,34(5):391394.]