{"title":"用于电视图像的抽取-插值系统的联合前后滤波器设计","authors":"D. Pian","doi":"10.1109/ITS.1990.175664","DOIUrl":null,"url":null,"abstract":"The author discusses the design of pre- and post-filters for a system where down-sampling (decimation) is followed by up-sampling (interpolation). This is called a decimation-interpolation system. Some important properties of decimation-interpolation systems are discussed. A theoretical result is presented where necessary and sufficient conditions are given to eliminate frequency aliasing. Based on this theoretical result, an iterative two-step joint pre- and post-filter design algorithm is presented which implicitly suppresses aliasing. Characteristics of the design method are discussed along with some examples.<<ETX>>","PeriodicalId":405932,"journal":{"name":"SBT/IEEE International Symposium on Telecommunications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1990-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Joint pre- and post-filter design for decimation-interpolation systems with applications to television pictures\",\"authors\":\"D. Pian\",\"doi\":\"10.1109/ITS.1990.175664\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The author discusses the design of pre- and post-filters for a system where down-sampling (decimation) is followed by up-sampling (interpolation). This is called a decimation-interpolation system. Some important properties of decimation-interpolation systems are discussed. A theoretical result is presented where necessary and sufficient conditions are given to eliminate frequency aliasing. Based on this theoretical result, an iterative two-step joint pre- and post-filter design algorithm is presented which implicitly suppresses aliasing. Characteristics of the design method are discussed along with some examples.<<ETX>>\",\"PeriodicalId\":405932,\"journal\":{\"name\":\"SBT/IEEE International Symposium on Telecommunications\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1990-09-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"SBT/IEEE International Symposium on Telecommunications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ITS.1990.175664\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"SBT/IEEE International Symposium on Telecommunications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ITS.1990.175664","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Joint pre- and post-filter design for decimation-interpolation systems with applications to television pictures
The author discusses the design of pre- and post-filters for a system where down-sampling (decimation) is followed by up-sampling (interpolation). This is called a decimation-interpolation system. Some important properties of decimation-interpolation systems are discussed. A theoretical result is presented where necessary and sufficient conditions are given to eliminate frequency aliasing. Based on this theoretical result, an iterative two-step joint pre- and post-filter design algorithm is presented which implicitly suppresses aliasing. Characteristics of the design method are discussed along with some examples.<>
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