人体下肢运动分析

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1、进行实时检测。文章最后对该系统的进一步完善和发展指出了方向。关键词：人体运动下肢关节点定位边缘人体区域人体模型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