面向MPEG-7的圖象檢索系統(tǒng)的研究與實現(xiàn).pdf

1、東北師范大學碩士學位論文面向MPEG7的圖象檢索系統(tǒng)的研究與實現(xiàn)姓名：趙瑩申請學位級別：碩士專業(yè)：計算機軟件與理論指導教師：林和平20050601AbstractRecentyearshavewitnessedtherapidgrowthofdigitalimagesduetotheincreasingpowerofcomputingandthefastdevelopmentofInternet.Howtoretrievetheimag

2、esinwhichpeopleareinterestedfromthoseisbecominganissuewhichneedssolvingurgently.ContentbasedImageRetrieval(CBIR)isthekeytechnologytoaddressthisurgentissue.CBIRisatechnologyforretrievingimagesonthebasisofimagefeaturessuch

3、ascolortextureandshapeetc.HoweverthecontentfeaturesofimagesarecomplicatedanddifferentatallwhichmaketheretrievaleficiencyofCBIRsystemslower.AccordingtothisMPEG(MovingPictureExpertsGroup)ofISOIECdevelopedtheISOIECstandardM

4、PEG7.BasedonMPEG7thedissertationgivestwoimageretrievalmethodsbasedoncolorhistogramandcolorspacehistogramandimplementedtheImageRetrievedModelSystemThisdissertationincludesfoursectionsasfollows:SectionIresearchesCBIR.Byint

5、roducingthebackgroundofCBIRthisdissertationgivesseveralimageretrievalmethodsbasedoncolortextureandshapefeatures.SectionIIintroducestheMPEG7standardwiththemainelementsoftheMPEG7sstandardMPEG7partsandthescopeofthestandarde

6、tc.Thissectionemphasizesonthebasicstructuresanddescriptorsthatcoverfollowingbasicvisualfeatures:colortextureshapemotionlocalizationandfacerecognition.ThenthissectionanalysestherelationofCBIRandtheMPEG7sstandard.SectionII

7、Igivesanimageretrievalmethodbasedoncolorhistogram.Accordingtothisthedissertationgivesanimprovedimageretrievalmethodbasedoncolorspacehistogramwhichoverlappedsubregionstogetcolorhistogramineachregion.SectionIVimplementsthe

8、ImageRetrievedModelSystemusingtwoimageretrievalmethodsbasedoncolorhistogramandcolorspacehistogram.Thissectionalsogivesthesystemdesignsystemimplementandtheresultsoftheexperiment.Intheendthissectionanalysestheresults.Keywo