资源描述：
《haritaoglu realtime surveillance ofpeople and their activities外语英文电子书》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、IEEETRANSACTIONSONPATTERNANALYSISANDMACHINEINTELLIGENCE,VOL.22,NO.8,AUGUST2000809W4:Real-TimeSurveillanceofPeopleandTheirActivitiesIsmailHaritaoglu,Member,IEEE,DavidHarwood,Member,IEEE,andLarryS.Davis,Fellow,IEEEAbstractÐW4isarealtimevisualsurveillan
2、cesystemfordetectingandtrackingmultiplepeopleandmonitoringtheiractivitiesinanoutdoorenvironment.Itoperatesonmonoculargray-scalevideoimagery,oronvideoimageryfromaninfraredcamera.W4employsacombinationofshapeanalysisandtrackingtolocatepeopleandtheirpart
3、s(head,hands,feet,torso)andtocreatemodelsofpeople'sappearancesothattheycanbetrackedthroughinteractionssuchasocclusions.Itcandeterminewhetheraforegroundregioncontainsmultiplepeopleandcansegmenttheregionintoitsconstituentpeopleandtrackthem.W4canalsodet
4、erminewhetherpeoplearecarryingobjects,andcansegmentobjectsfromtheirsilhouettes,andconstructappearancemodelsforthemsotheycanbeidentifiedinsubsequentframes.W4canrecognizeeventsbetweenpeopleandobjects,suchasdepositinganobject,exchangingbags,orremovingan
5、object.Itrunsat25Hzfor320240resolutionimagesona400Mhzdual-PentiumIIPC.IndexTermsÐSurveillance,peopletracking,activitydetection,real-timevision,bodypartanalysis.æ1INTRODUCTIONHEobjectiveofthispaperistopresentasetof.Constructsanappearancemodelforeachp
6、ersonTtechniquesintegratedintoalow-costPCbasedreal-duringtrackingthatcanbeusedtoidentifypeopletimevisualsurveillancesystem,calledW4,forsimulta-afterocclusion.neouslytrackingpeopleandtheirbodyparts,andmonitor-.Detectsandtrackssixmainbodyparts(head,han
7、ds,ingtheiractivitiesinmonochromaticvideo.W4constructsfeet,torso)ofeachpersonusingastaticshapemodeldynamicmodelsofpeople'smovementstoanswerques-andsecondordermotiontrackingofdynamictionsaboutwhattheyaredoing,andwhereandwhentheyappearancemodels.act.It
8、constructsappearancemodelsofthepeopleittracks.Determineswhetherapersoniscarryinganobject,sothatitcantrackpeoplewithrelativeidentity(who)andsegmentstheobjectsoitcanbetrackedduringthroughocclusioneventsintheimagery.W4hasbeenexchanges.designedtoworkwith
