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1、進行實時檢測。文章最后對該系統(tǒng)的進一步完善和發(fā)展指出了方向。關(guān)鍵詞：人體運動下肢關(guān)節(jié)點定位邊緣人體區(qū)域人體模型1IAbstractHumanmotiontrackingandanalysishasbeenreceivingincreasingattentionfromresearchersinthefieldsofimageprocessingandcomputervisionduringthepastfewyears．Ithasalotofapplicationsinsmartsurveillancesystem，virtualreality,ad
2、vanceduserinterface，motionanalysisandmodel-basedcoding，etc．Generallyspeaking，theprocedureofthehumanmotiontrackingandanalysisfromasequenceofimagesinvolvesthreemainstages：(1)movingobjectssegmentationinacomplexscene；(2)humanbodysegmentationfrommovingobjects；(3)humanmotiontrackinga
3、ndbodystructurere—construction；(4)motionanalysisandactionrecognition．Asthebaseofthehumanactionrecognitionandunderstanding，humanmotiontrackingandbodystructurere—constructionisthekeyofthewholeprocedure．Thispaperproposesamethodofdetectingthelowerlimbjointsinhumanwalkingautomatical
4、ly，whichisbasedonthegeometrypropertiesofwalkinghuman．Theimagesequenceisacquiredbyasinglecamerafirstly,andthehumanregionisextractedfromtheimagebythebackgroundsubtraction．Afterthehumanregionandheightareobtained，wecanfurthercompletethelowerlimbjointsdetectionofwalkinghuman．’Abovea
5、ll，thelowerlimbdetectioninhumanwalkingfromsideviewisfinishedbasedonthelimblengthlimit，becausethelimblengthhasnodistortioninhumanwalkingfromsideview．Next，wedetectthekneejointsfromfrontaccordingtotheedgeinformationandlimblengthlimit．Towards血edetectionofanklejointsfromfront，weadju
6、stthelengthoflowerlegbyedgeinformationandusethisnewlengthtodetecttheanklejoints．Finallyafurtherresearchondetectionoflowerlimbsjointfromanyvi．ewiscompleted，whichisaccordingtothelinearcurvefittingoflowerlimbedgeandlowerlimblength．Thispapergivestheexperimentresultsoflowerlimbjoint
7、sdetectionfromanyviews．Theimagesequencesincluderealsequencefromsideviewandmodelsequencesfromside，frontandanyviewsbyhumanmodelsoftware(3DMAXandPOSER3．O)．Theexperimentresultsprovethatthemethodinthispaperissimpleandeasytocomplete．Atlastthefurthersuggestionsfortheimprovement&thesys
8、temarediscussed．Keywords：humanmotion，lowerlimbs，jointd
