基于视频信息的运动目标跟踪技术研究

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1、南京航空航天大学硕士学位论文基于视频信息的运动目标跟踪技术研究姓名：王剑申请学位级别：硕士专业：测试计量技术及仪器指导教师：王敬东20090101基于视频信息的运动目标跟踪技术研究AbstractVideotrackingisoneofthemainresearchbranchinthefiledofcomputervision,whichhasbeenwidelyappliedinmilitary,medicineandscientificresearchetc.Theaccuracyandstabilityofobjecttrackingalgorithmaffectsthea

2、pplicationofactualobjecttracking.Tofindastrong-robustandhigh-accuracytrackingalgorithmisthehotpointincomputervision.Atfirst,thispaperbrieflyintroducesthemaintrackingalgorithmsatpresent,andgivestheprincipleandapplicationofthesealgorithmsandcomparesthemwitheachother.Secondly,thispapermainlyfocus

3、esontheprincipleandapplicationofcorrelationtrackingalgorithm.Duetothebadadaptationofthecorrelationalgorithminvarioussharpsanddifferentscales,thispaperappliestheactivemodelcontoursalgorithminthecorrelationalgorithm.Duringthetemplaterefreshingofthecorrelationalgorithm,thispaperappliestheactivemo

4、delcontoursalgorithmtogetaccesstotheobjectcontourstoreachtheaccurateobjectareasoastorefreshthetemplateexactly.Besides,thispaperdoestheresearchontheprincipleandapplicationofactivemodelcontourandontheinfluenceoftheinitialcontourcontrolpoint,candidateareaandmodelparameterforactivemodelcontour.Fro

5、mtheinvolvedimagesizeandsearchareabasedonthebasictheoryofcorrelationalgorithm,thispaperappliestheimagemulti-resolution,three-stepsearchmethodandKALMANpredicttosavetheprocesstime.Finallythispaperresearchestheocclusion,analysisthesubstantialquestionduringocclusion.Fromthetwopartsofocclusionjudgm

6、entandtrackingalgorithmunderocclusion,thispaperadoptstheBhattacharyyaparameterbasedoncolorhistogramastheruleofocclusionjudgment.Experimentalresultsdemonstratethismethodcanjudgethetimeofobjectocclusion.Whenobjectocclusion,thispaperusesthemultipleblocksandmethodofvotingtotrackobjectstably.Experi

7、mentalresultsalsodemonstratethismethodcantrackobjectswhenobjectpart-occlusion.Thispaperselectstheappropriatehardwareandsoftwaresectionaccordingtotheactualsituation,andthenestablishesadigitalvideocapturesystem.Thesystemcantrackobjectsont