基于h.263視頻編解碼誤差恢復(fù)技術(shù)的研究

1、中國科學(xué)技術(shù)大學(xué)碩士學(xué)位論文基于H.263視頻編解碼誤差恢復(fù)技術(shù)的研究姓名：李偉申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)科學(xué)與技術(shù)計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師：凃國防20030901基于王王263褪顫編瓣鶼器羞禳復(fù)裝零辨鹺究攘耍ErrorRecoveryBasedon袋263VideoEncodeandDecodeLi粥DirectedbyGuofmlgTuAbstractThecombinationanddevelopmentofmultimedia

2、technologiesanddigitalco捌nunicationtechnologieshavepromotedthedevelopmentofmultimediaeommunicationservicesgreatlyCommunicationtechnologieshavedevelopedrapidlyinrecentyearsmostlyininternet，mobiIecommunicationandmultimedia

3、servicesTheinterestinvideodetivoryovermobilenetworksandinternetisgrowingrapidly。OneinherentprobtemofvideotransmissionischannelerrorsTheeffectoftheseerrorsnotonlYCancausegreatdegradationofthequalityofvideoservice，butalsoc

4、anleadtothefatlureofthewholevideocommunicationsystem，becauseofthemotioncompensation—basedvideocoding。Soerrorresiliencetechnologieshavealreadybecomeanimportantpartofvideocodingovererror—pronechannelsinordertoimprovethequa

5、lityofthevideotransmissionInthepaper，weresearchandimplementanerrorrestltentmethodfor臻263videotransmittedonerrorpronechannel。InourencoderweapplydatapartitiontechnologyandreversiblevariableIengthcoding(RVLC)，moreoverweimpl

6、ementanautetransmissionalgorithminordertoreducetheerrorpropagationInourdecoder，weresearchandimplementanerrorresiltentH。263videodecodebasederrorcheckandconcealmentalgorithm。Thisalgorithmcanrecoveryvideoerrorbyusingspatial

7、andtemporalinterpolationTheexperimentpatterns，whichweused，areprovidedbyIT爭T猁一10。Thestudyindicatesthatthiserrorresillentmethodcanbetterimprovethequalityofthevideetransmittedoilerrorchannel豫ismethodcanbeappliedinvideocomun