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时间:2020-04-30
《一种用于H.264/AVC的高性能多变换结构.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、JournalofSoutheastUniversity牗EnglishEdition牘Vol.29牞No.3牞pp.276281Sept.2013ISSN1003—7985High-performancemulti-transformarchitectureforH.264/AVC1牞2123WangGangWangQingLiBingChenRui1牗SchoolofInstrumentScienceandEngineering牞SoutheastUniversity牞Nanjing210096牞China牘2牗WuxiBranch牞SoutheastUn
2、iversity牞Wuxi214135牞China牘3牗InstituteofElectronics牞ChineseAcademyofSciences牞Beijing100190牞China牘Abstract牶InordertoincreasethehardwareutilizationandInaccordancewiththearchitecture牞theexistingde-minimizethechiparea牞amulti-transformcodingarchitecturesignscanbedividedintothreekinds.Thef
3、irstkindsof犤14犦whichincludes4×4forwardintegertransform牞4×4inversearchitecturesaretheparallelarchitectures.Hongetintegertransform牞4×4Hadamardtransformand2×2al.犤1犦proposedaparallel4×4transformarchitectureHadamardtransformisproposed.Bysimplifyingthese犤2犦basedonbit-extendedarithmetic.Ru
4、binproposedatransformsandexploringtheirsimilarities牞theproposeddesignparallelarchitecturebasedonbit-serialsharedmemory.mergesthearchitectures牞processingindividualtransformsintoBothbit-extendedarithmeticandbitserialsharedmemoryahigh-performancemulti-transformcodingarchitecture.Usinga
5、reusedtoimprovetheprocessingrate.Torealizefor-asemiconductormanufacturinginternationalcorporation犤3犦wardtransforms牞Portoetal.proposedaparallelarchi-牗SMIC牘0.18μmcomplementarymetaloxidesemiconductortecturewhichiscalledTmodule牞andthiskindofarchi-牗CMOS牘technology牞theproposedarchitecture
6、achievesthetectureachievesaveryhighthroughput.Andthedesignmaximumoperatingclockfrequencyof200MHzandthe犤4犦throughputrateof800×106pixel/swiththehardwarecostofofWangetal.isanotherparallelarchitecturetorealize3704gates.Theresultsdemonstratethatthedatathroughputmultipletransforms.Thesepa
7、rallelarchitecturesachieverateperunitarea牗DTUA牘ofthisdesignisatleast40.28%highthroughputattheexpenseofhighareacost.Thesec-higherthanthatofthereferencedesign.Thisdesigncanmeetondkindsofarchitecturesarereconfigurablearchitec-犤56犦犤5犦therequirementsofreal-timedecodingdigitalcinemavideo牗
8、4tures.Caoetal.prop
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