MPEG-4視頻編碼的軟件優(yōu)化與DSP實現(xiàn).pdf

1、華中科技大學碩士學位論文MPEG4視頻編碼的軟件優(yōu)化與DSP實現(xiàn)姓名：焦曉申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：朱光喜2003.5.9華中科技大學碩士學位論文AbstractWiththeworldwidepopularizationofcomputerandnetworktechnologypeopleneedmoreandmorecommunications確emultimediatechnologyhasbeentheh

2、otspotintheinformationandcommunicationareaandthecodingstorageprocessingofvideoalsoisthecoreareaofthemultimediaInthisdissertationWecarryoutaresearchandimplementationonrealtimeMPEG，4videoencoderThedissertationiSorganizedas

3、follows溉＆stgive黼overviewofthecharacteristicsandstandardofvideomonitoringsystemandmultimediaconmaunication，andiIluminatetheresearchcontentofthisdissertationThenwepresentsomekeypointsofMPE(孓4videoencoderThesekeypointsinclu

4、demotionestimationandcompensation，texturecodingAndwealsobringoutthemotiondetectionanddigitalwatermarkingtoguaranteethesecurityofmultimediainformationInthisdissertationweintroducetwoDSPplatformsofMPEG4videoencoderThefirst

5、isTMS320C6201whichispublishedbyTIforthepurposeofhighspeeddigitalsignalprocessing。AnotherisPNXl300，whichisPhilipsproductforspecial糙einmultimediaThepaperintroducesthesimilaritiesanddifferencesintherealizingoftwovideoencode

6、rsjndetailsSoftware0ptimizationisthekeyoftherealizationofencoderHowtealizehighefficientreal—timevideocodingbyusingofthechip’ScharacteristicsisthefocalpointofourresearchWjputforwardsomeeffectiveoptimizafionmethodswhileful

7、lyutilizechips’resourcessuchasadoptmemoryconfiguretoreducethetimewastebecauseofdatatransmission，utilizeinstructionandlinearaSsemblylanguagetealizemaximumsoftwarepipeline、useCachetransformationandDMAtransmissiontospeeddat

8、ahandleetc歷Psemethodsperformancewell，andgetasatisfiedresultWecompareandillnminateourobontwohardwareplatformsfinallyLastlyweconcludethisdissertationandpointoutfutureresearchdirections，KeyWords：MPEG4，SoftwareOptimization，V