{"title":"基于自适应运动补偿的高清电视频域下变频","authors":"A. Vetro, Huifang Sun, J. Bao, T. Poon","doi":"10.1109/ICIP.1997.648074","DOIUrl":null,"url":null,"abstract":"The paper investigates the possible means of down converting an incoming HDTV signal into one which is suitable for display onto an NTSC monitor. We present a novel frequency synthesis algorithm which constructs a set of 8/spl times/8 DCT coefficients from four original 8/spl times/8 DCT blocks. Also, a down-conversion decoder employing a unique adaptive motion compensation algorithm is presented. Using this fixed motion compensation algorithm, the proposed down-conversion technique is compared to the conventional method. Both yield acceptable image sequences with different trade-offs in complexity and quality.","PeriodicalId":92344,"journal":{"name":"Computer analysis of images and patterns : proceedings of the ... International Conference on Automatic Image Processing. International Conference on Automatic Image Processing","volume":"1 1","pages":"763-766 vol.1"},"PeriodicalIF":0.0000,"publicationDate":"1997-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":"{\"title\":\"Frequency domain down-conversion of HDTV using adaptive motion compensation\",\"authors\":\"A. Vetro, Huifang Sun, J. Bao, T. Poon\",\"doi\":\"10.1109/ICIP.1997.648074\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The paper investigates the possible means of down converting an incoming HDTV signal into one which is suitable for display onto an NTSC monitor. We present a novel frequency synthesis algorithm which constructs a set of 8/spl times/8 DCT coefficients from four original 8/spl times/8 DCT blocks. Also, a down-conversion decoder employing a unique adaptive motion compensation algorithm is presented. Using this fixed motion compensation algorithm, the proposed down-conversion technique is compared to the conventional method. Both yield acceptable image sequences with different trade-offs in complexity and quality.\",\"PeriodicalId\":92344,\"journal\":{\"name\":\"Computer analysis of images and patterns : proceedings of the ... International Conference on Automatic Image Processing. International Conference on Automatic Image Processing\",\"volume\":\"1 1\",\"pages\":\"763-766 vol.1\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-10-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Computer analysis of images and patterns : proceedings of the ... International Conference on Automatic Image Processing. International Conference on Automatic Image Processing\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICIP.1997.648074\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Computer analysis of images and patterns : proceedings of the ... International Conference on Automatic Image Processing. International Conference on Automatic Image Processing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICIP.1997.648074","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Frequency domain down-conversion of HDTV using adaptive motion compensation
The paper investigates the possible means of down converting an incoming HDTV signal into one which is suitable for display onto an NTSC monitor. We present a novel frequency synthesis algorithm which constructs a set of 8/spl times/8 DCT coefficients from four original 8/spl times/8 DCT blocks. Also, a down-conversion decoder employing a unique adaptive motion compensation algorithm is presented. Using this fixed motion compensation algorithm, the proposed down-conversion technique is compared to the conventional method. Both yield acceptable image sequences with different trade-offs in complexity and quality.
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