边缘检测在产品外观检测中的应用

··：2008－11－19：，，。：。（，510006）0：、、、、、，、。，，，。。1，，、，，。：R（i,j）=Mm=1Σn=1ΣSij(m,n)×T(m,n)Mm=1Σn=1Σ[Sij(m,n)]2姨Mm=1Σn=1Σ[T(m,n)]2姨，R（i,j）=1。S，RRmax（im，jm），Simjm。2[1]。。：①；②。，，，，，，。，。，。、，。，，。，。，[2]。：。，。，。，，[3]。3。，。，。，，。，：G（x,y）=GxGy姨姨=鄣f鄣x鄣f鄣y鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣鄣（1）：，。、。，。。：；；；：TP39：A：1002－6673（2009）01－121－03Development＆InnovationofMachinery＆ElectricalProductsVol．22,No．1Jan．,200922120091121··，：｜G（x,y）｜=｜Gx｜+｜Gy｜｜G（x,y）｜≈max（｜Gx｜，｜Gy｜）。，：a（x,y）=arctan（Gy/Gx）αx。，（1）。：Gx=f[i,j+1]-f[i,j]Gy=f[i,j]-f[i+1,j]，jx，iy。。Gx=Gy=，xy。GxGy，Gx[i,j+1/2]，Gy[i+1/2,j]。，2×2（1×22×1）xy：Gx=Gy=xy，[i+1/2,j+1/2]，2×2。，，3×3。4：：，，。：。：。：，，。，。，，。，。4.1RobertsRoberts：G[i,j]=｜f[i,j]-f[i+1,j+1]｜+｜f[i+1,j]-f[i,j+1]，：G[i,j]=｜Gx｜+｜Gy｜GxGy：Gx=Gy=2×2，[i+1/2，j+1/2]。Roberts，[i，j]。4.2Sobel，3×3。[i，j]。Sobel：M=sx2+sy2姨：sx=（a2+ca3+a4）-（a0+ca7+a6）sy=（a0+ca1+a2）+（a6+ca5+a4）c=2。，sxsy：sx=sy=。Sobel。SobelPrewitt。4.3PrewittPrewittSobel，c=1。：sx=sy=Sobel，。5、、、，，，，。：[1]．PVC[D].，2004，5．1-1-11-11-1111-1-1100-10-110-101-202-101121000-1-2-1a0a1a2a7[i,j]a3a6a5a4-101-101-101111000-1-1-1（130）122··ANumericSignalinginAnalogSystemSHAOXiang-Yi(DepartmentofElectricalEngineering,HunanUniversityofArts&Science,ChangdeHunan415000，China)Abstract:Analogsignalingisusedinmostcontrollingsystemoftheconventionalwirelesscommunicationsystems.Butasaresultlimitedbycodingcapacityandtime,thesesystemscanonlyprovidesomesimplefunctionsforEnd-Users.HereweintroduceasortofNumericsignal-ingwithbigcapacitywhichcannotonlymakeencode&decodesimpleandreliablebutalsomoreperfectfunctionandflexiblecontrolcanbeacquiredinconventionalwirelesscommunicationsystem.Therefore,notonlythesystemcancommunicatedwithsomeeventandcontrol,butalsothesignaltransportprotocolenhancesthebasicvoicecorrespondfunctionbyaddnumericaldataprocessingcapabilitytothesystem.Keywords:wirelesscommunicationsystem；control；codingcapacity；numericsignalingEdgeDetectionintheProductTestingWUZhi-Min(GuangdongUniversityofTechnology,GuangzhouGuangdong510006，China)Abstract:Thisarticlefocusesontheedgedetectioninthesimulationsysteminlastassemblyofharddisk,analyzedthetemplatematchingandthegradientalgorithm,andachievedtheproducttestingfunctionofappearanceofHDaccordingtothreecommonlyedgedetectionmethodswhichisintroducedbythisarticle.Keywords:edgedetection；patternmatching；thegradient；operator[2],．[J]．，2005，18．[3],,．[J]．，2006，19．[4]．[J].，2002，21．[5]．[J]．（），2008，2．[6].[J].,2007，34．DesignandEnergyConservationResearchofCentralAirConditioningAutomaticControlSystemBasedonLonWorksTechnologyHUANGRong（EngineeringDepartment，BeijingVocationalCollegeofElectronicScience，Beijing100029，China）Abstract：ThisarticleintroducedthedesignofcentralairconditioningautomaticcontrolsystembasedontheLonWorkstechnology,pre-sentedthedetailedimplementationmethodofhardwareandsoftwareintemperatureandthehumiditycontrol,madethesimpleanalysisonthecentralairconditioningautomaticcontrolsystem'senergyconservationKeywords：LonWorks；centralairconditioning；intelligentvalve；temperatureandhumiditycontrol（2），，。。4，LonWorksBA，、、、、、、、。、、、、、、、、。，，，，。，、、，。，。：[1].[M].:，2003.[2].[M].:，1997.[3].Lon[M].:，2003.[4].[M].:，1999.[5].[M].:，1999.[6].[J].,2004,3.[7].[J].,2008,8.（122）（127）130