{"title":"A new architecture for fast arithmetic coding in H.264 advanced video coder","authors":"R. Osorio, J. Bruguera","doi":"10.1109/DSD.2005.9","DOIUrl":null,"url":null,"abstract":"In this work, a new architecture for binary arithmetic coding is presented in the context of the new AVC/H.264 standard for video coding. Among the new technologies included in AVC/H.264 a context adaptive binary arithmetic coder (CABAC) is used that outperforms the baseline entropy coder in a significant manner. In this work we justify the need for a new architecture that implements the unique characteristics of CABAC that are not found in other implementations of arithmetic coding. We show that a fast architecture is needed that combines short cycle time and application-aware scheduling in order to accomplish with the high computational demands. A number of optimizations are introduced that allow processing several symbols per cycle and reduce data binarization overhead. Implementation results are shown for a Virtex-II FPGA and the main conclusions are presented.","PeriodicalId":119054,"journal":{"name":"8th Euromicro Conference on Digital System Design (DSD'05)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2005-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"28","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"8th Euromicro Conference on Digital System Design (DSD'05)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/DSD.2005.9","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 28
Abstract
In this work, a new architecture for binary arithmetic coding is presented in the context of the new AVC/H.264 standard for video coding. Among the new technologies included in AVC/H.264 a context adaptive binary arithmetic coder (CABAC) is used that outperforms the baseline entropy coder in a significant manner. In this work we justify the need for a new architecture that implements the unique characteristics of CABAC that are not found in other implementations of arithmetic coding. We show that a fast architecture is needed that combines short cycle time and application-aware scheduling in order to accomplish with the high computational demands. A number of optimizations are introduced that allow processing several symbols per cycle and reduce data binarization overhead. Implementation results are shown for a Virtex-II FPGA and the main conclusions are presented.