視頻序列運動估計技術及關鍵幀提取技術的研究.pdf

1、電子科技大學碩士學位論文視頻序列運動估計技術及關鍵幀提取技術的研究姓名：張璇申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：周寧20050301AbstractApplicationofthevideoinformationismorcandmoreextensive，suchasshoppingonline，videoweb，VODanddigitallibrary，etcThetechnologyamongthemismainlyc

2、oncentratedOiltheserespects：videocompressing，transmitting，management，controlandsearching，etcBecausevideoinformationisheavy，andabundantincontent，videoeffectivemanagementandsearchbecomesadifficultsubjectToday，themanagement

3、andsearchofvideoisdonemainlybasedODvideofileanditsdescribing，whichcan’toperatefromtheintracontentofvideo，however，itisusuallywhattheusercaresSooccuranewfieldaboutvideoprocessing：ContentBasedVideoRetrieval(CBVmContent—base

4、dVideoRetrievalisanewlyarisentechniqueininformationretrievalofmultimediadatabaseItextractsobjectsemanticfeaturesstraightfromvideodata，suchas：imagecolor，texture，shape，shot，sccne，shotmotion，etcThensearchandretrievalsimilar

5、ityvideodatafromalotofvideostreamsindatabasebasedthesefeature，Thispaperhavedonethefollowinggroundworkaroundthisfield：1、Inthefirstpart，theapplication、systemconstitutes、andrespectivefunctionofContent—basedVideetrievalaredi

6、scussedbrieflyandfirstlyThensummarizethetheory，meritanddemeritofthearithmeticofclassickeyflameextractionThispaperisbasedonthesecontent2、Inthesecondpart，mainlydiscussthetwo—dimensionmotionestimationtechniqueBasedonblockma

7、tchingmotionestimation，thischapterintroducethetheoryofblock—matchingandmatchingcriteria，studiedseveralimportantfastsearcharithmeticindetailAtthesainctime，itmakeacomparisonandanalysisofpredictedperformanceamongthemandgive

8、someexperimentresultsThecontentinthispartisveryimportant，itistheoneofthemainresearchworkinthispaperAlloftheotherworklaterarclaunchedonthesecontent3、Inthethirdpart，mainlydiscussoneoftheemphasesofthispaper：key—frameextract