實時視頻編解碼系統(tǒng)加速策略研究.pdf

1、浙江大學(xué)碩士學(xué)位論文實時視頻編解碼系統(tǒng)加速策略研究姓名：林袁申請學(xué)位級別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：姚慶棟虞露2003.1.1浙江大學(xué)碩士學(xué)位論文ABSTRACTvideo&imageprocessingiswidelyusedinthosefields：digitalTV，videoconferencing，digitallibraries，distantleaming，telemedicine，interactivegame

2、sAnditplacesveryhi曲demandsondevicesfortransmission，storage，andcomputationThemainobjectofthisdissertationfocusesonsomebottleneckproblemsofmultimediarealtimesystem：computationalspeed，datastoragestructureanddatabusscheduleB

3、asedonvideocodec，algorithmoptimizationandintegratecircuitdesignmethodologythispapergivessomeproposalstoresolvetheseproblemsfromdifferentlevelsComputationalspeedisoneofthebottleneckproblemsofmultimediareal—timesystemInthi

4、sarticlefastalgorithmsformodulesofhighcomputationalcomplexityandIntelaccelerationinstructionsetsaredeeplystudied’rherearetwokindsofarchitectureforvideo&imageprocessingsystem：programmedanddedicatedTheformerismoreflexiblea

5、ndeasytoupdateButthehardwareiscomplicated，andpowerconsumptionishighThelaterisdesignedandoptimizedagainstasetofalgorithmsItsavesmorehardwareandhashigherprocessingspeedActualsystemoftenadoptsmixedarchitecturedesignmethodin

6、cludingbothdedicatedandprogrammedprocessorsAccelerationmethodsofthemaredeeplystudiedinthisarticleBynow，thespeedoflogiccomputationinprocessingunitsisveryhighwithgeneralCMOStechniquesHoweverthespeedofthestoragememoryandthe

7、datatransformbetweenmemoryandprocessingunitsisnotashighastheprocessingunitsItbecomesthebottleneckofthesystemInthispaperdatastoragestructureanddatabusscheduleareresearchedFirstly，twokindsofdatastoragestructurearestudied：l

8、ocalmemoryandflamememoryThestructureinthefutureisforwardedSecondlythebusdatascheduleisstudiedbasedonthesotragestructure，Invideo&imageprocessingthedataarecontinuous，periodicalandcorrelativeAccordingtothecharacters，anAMBAb