基于内容的视频片段检索技术研究

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1、南京理工大学博士学位论文基于内容的视频片段检索技术研究姓名：赵亚琴申请学位级别：博士专业：控制科学与工程指导教师：周献中20070301博士论文基于内容的视频片段检索技术研究AbstractRapidgrowthofvideor‘掷u∞∞sleadsto缸urgentdemandforeffeetivelyretrievingintcresti．gvideodipfromhugeamotmtsofvideodatainrecentyears．Astextretrieval,videoretrievalisalsoexpec'ted

2、thatarelzievalsystemc眦automaticallyretIⅡnresultsinaccordwithquerydemandwhenU船I'Ssubmitqueryvideocontent．Content-basedvideot≈Ixievalteelmiqueshaveemerged猫thetimesrequires，whichcombineilnl毽eprocessing，patternrecognition,computervisionandi脚geundcrst趾ding,etc．Andithaswide

3、applicationforeground．Tlaispapermainlypresentscontent-baseddipretrievalmethodsoftlareevideogenres，commercialvideo，racquet$pOl怄videoandlleW$video．Anewcommercialvideodipretrievalmethodispresented,inwhichthesimilarshotsetofshotsofqueryelipisdefinedtocomputethenumberofone

4、_onesimilarshotsbetweentwovideodips，011thebasisofthis，thedefinitionofmatchingfunctionoftwovideoclipsisgiven．Afterwards．similarcommercialdipsareautomaticallysegnaentcdfromcontinuousvideodatabasesusingslidingshotwindowaccordingtotheirmatchingdegrees．Furthermore．thesimil

5、arshotsetsa舱mappedintoonesimilarshotmatrixtOcomputevariousfactorsforsimilarityrankingofthesimilardipsbydm糟ctefsofthematrix．Experimentalresultsshowedthattheproposedmethodcouldeffectivelyandefficientlyretrieveandranksimilarvideodips．Thispaperpresentsanewaudiovisualinteg

6、rationschemeforretrievingrallylaiglatight丘Dmracquetsportsvideo．Motionfeaturesanddominantcolora∞appliedtoclassifyshotsintotwoclasses，globalviewshotsandnon-globalviewshots．AttheSalnctime，importantauditoryfeaturesineluclingbothballhittingandapplause躺d如．．etedbyusing8VM．At

7、tetwards．audiofeatures811tt：almtiedintoshotd【as∞sforidentifyinginterestingeve出withstrongsemanticmeaning．Finally,rallyhiOai曲ts躺reldevedbyrallyclipsreplayedandexcitingdegreemodelofarallyfromracquetsportsvideo．ThispaperpresentsaschemeofretrievingnewsvideodipsbasedOillow-

8、levelvisualf目atureandhigh-levelsemarttieinformation．Thesemanticinformationisobtainedfromtopiccaptiontext．Inthemethod,newsvid