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1、上海交通大学硕士学位论文basedonH.264encoding,softdecoderbasedonFFMPEG,imageinterfacebasedonOpenCVandGUIdesignedbasedonQtSDKinLinux.Intheimageprocessingmodule,anefficientalgorithmusinginterframeinformationisdesignedandrealizedinthisarticle.Thisalgorithmgetsthefore
2、groundimagebythebackgroundsubtractionbasedonthreshold.Afterthefixingmodule,theelevatorwaitingpeopletargetscanbeextractedbyconnectedcomponentdetection.Afterthat,wedividetheclusterresultinto2parts–singlepersonandgrouppeople.Weusethe‘anti-split’algorithm
3、andmultiplehumansegmentationalgorithmbasedontheoverlapareaofoneobjectbetweentwoframes,torecognizeandtrackthetargets.Finally,wecangetthenumberofwaitingpeople.Experimentsconductedindifferentplace,theaccuracykeptabove80%,andthespeedkeptbetween15framesper
4、secondand20framespersecondwiththestableillumination.Theexperimentresultshowsthatthesystemcanmeetthedemandsofelevator-control-system.Also,thisarticlehasanalyzedtheshortcomingsofthealgorithmmentionedabove.Becausebackgroundsubtractionneedsastableillumina
5、tion,therewillbesomeerrorsinalgorithmdesignedusinginterframeinformationinsomeparticularcases.Tomakethesystemmorerobust,anassistalgorithmbasedonMeanShiftsegmentationandcolor-histogramheadtrackingispresentedinthisarticle.Throughtheexperimentresult,itsac
6、curacyhasbeenprovedandcanmeetthedemandofoursystem.KEYWORDS:ComputerVisionDetection,DigitalImageProcessing,PeopleCounting,MoveDetectionIV万方数据上海交通大学硕士学位论文目录第一章概述............................................................................................
7、......................11.1引言..................................................................................................................11.2国内外研究现状..............................................................................................21.3
8、论文研究内容..................................................................................................51.3.1本文的研究目标....................................................................................51.3.2本文的研究内容.............................
