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extract highlights from baseball game video with hidden markov.pdf


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extract highlights from baseball game video with hidden markov.pdf
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EXTRACTHIGHLIGHTSFROMBASEBALLGAMEVIDEOWITHHIDDENMARKOVMODELSPengChangRoboticsInstituteCarnegieMellonUniversityPittsburgh,PA15213MeiHan,YihongGongC&CResearchLaboratoriesNECUSA,Inc.Cupertino,CA95014ABSTRACTInthispaper,wedescribeastatisticalmethodtodetecthigh-lightsinabaseballgamevideo.Theinputvideois?rstseg-mentedintosceneshots,withinwhichthecameramotioniscontinuous.Ourapproachisbasedontheobservationsthat1)posedofcertaintypesofsceneshotsand2)thosesceneshotsexhibitspecialtransitioncontextintime.Toexploitthosetwoob-servations,we?rstbuildstatisticalmodelsforeachtypeofsceneshotswithproductsofhistograms,andthenforeachtypeofhighlightahiddenMarkovmodelislearnedtorepre-sentthecontextoftransitionintimedomain.Aprobabilis-biningthetwo,whichisusedforhighlightdetectionandclassi?cation.Satisfactoryresultshavebeenachievedoninitialexperimentalresults.1.INTRODUCTIONTherehasbeenactiveresearchactivitiesonextractinghigh-lightsfromsportsgamevideos.Thisworkistowardauto-maticextractionofhighlightsfrombroadcastbaseballgamevideo.Whatdiffersfrommostpreviousapproachesisthatwebuildstatisticalmodelstoexplorethespeci?cspatialandtemporalstructureofhighlightsinbroadcastbaseballgamevideo,whichleadstoimprovedperformance.Somecloselyrelatedworkinclude[4]whichutilizesaudiosourcetoextracthighlightsinbaseballgame,[6]whichcande-tectpitchscenesinbaseballgame,and[1]whichdetectspitching/battingscenes,paredtopreviouswork,o
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