{"title":"通用处理器上几种视频编码算法的统一优化方法","authors":"V. Lappalainen, T. Hämäläinen","doi":"10.1109/ITCC.2002.1000428","DOIUrl":null,"url":null,"abstract":"A unified method for optimization of video coding algorithms on general-purpose processors is presented. The method consists of algorithmic, code, compiler, and SIMD (Single Instruction Multiple Data) media Instruction Set Architecture (ISA) optimizations. H.263, H.263+ and emerging H.26L are used as example cases. For the realization of the unified method, the coding elements in all the codecs are analyzed and optimization techniques suitable for one or several of all the coding elements are presented. Results show that a nine-fold improvement can be obtained in H.26L decoding speed in terms of frames per second with video quality equivalent to a non-optimized implementation.","PeriodicalId":115190,"journal":{"name":"Proceedings. International Conference on Information Technology: Coding and Computing","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Unified method for optimization of several video coding algorithms on general-purpose processors\",\"authors\":\"V. Lappalainen, T. Hämäläinen\",\"doi\":\"10.1109/ITCC.2002.1000428\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A unified method for optimization of video coding algorithms on general-purpose processors is presented. The method consists of algorithmic, code, compiler, and SIMD (Single Instruction Multiple Data) media Instruction Set Architecture (ISA) optimizations. H.263, H.263+ and emerging H.26L are used as example cases. For the realization of the unified method, the coding elements in all the codecs are analyzed and optimization techniques suitable for one or several of all the coding elements are presented. Results show that a nine-fold improvement can be obtained in H.26L decoding speed in terms of frames per second with video quality equivalent to a non-optimized implementation.\",\"PeriodicalId\":115190,\"journal\":{\"name\":\"Proceedings. International Conference on Information Technology: Coding and Computing\",\"volume\":\"25 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-04-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings. International Conference on Information Technology: Coding and Computing\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ITCC.2002.1000428\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings. International Conference on Information Technology: Coding and Computing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ITCC.2002.1000428","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Unified method for optimization of several video coding algorithms on general-purpose processors
A unified method for optimization of video coding algorithms on general-purpose processors is presented. The method consists of algorithmic, code, compiler, and SIMD (Single Instruction Multiple Data) media Instruction Set Architecture (ISA) optimizations. H.263, H.263+ and emerging H.26L are used as example cases. For the realization of the unified method, the coding elements in all the codecs are analyzed and optimization techniques suitable for one or several of all the coding elements are presented. Results show that a nine-fold improvement can be obtained in H.26L decoding speed in terms of frames per second with video quality equivalent to a non-optimized implementation.
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