{"title":"一种DV到MPEG-2转换的快速运动估计算法","authors":"H. Kato, H. Yanagihara, Y. Nakajima, Y. Hatori","doi":"10.1109/ICCE.2002.1013964","DOIUrl":null,"url":null,"abstract":"A fast motion estimation algorithm for digital video (DV) to MPEG-2 conversion is described. Since DCT information is available from DV data and 2/spl times/2 IDCT can be achieved by simple summation and subtraction operations, a low-resolution image is constructed and used for a coarse motion search. Then a fine search is performed using an extended two step search in the original image domain. The experimental results show that the proposed method is more than 160 times faster than the full search whereas the PSNR and search speed are greatly improved when compared with the conventional method.","PeriodicalId":168349,"journal":{"name":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"A fast motion estimation algorithm for DV to MPEG-2 conversion\",\"authors\":\"H. Kato, H. Yanagihara, Y. Nakajima, Y. Hatori\",\"doi\":\"10.1109/ICCE.2002.1013964\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A fast motion estimation algorithm for digital video (DV) to MPEG-2 conversion is described. Since DCT information is available from DV data and 2/spl times/2 IDCT can be achieved by simple summation and subtraction operations, a low-resolution image is constructed and used for a coarse motion search. Then a fine search is performed using an extended two step search in the original image domain. The experimental results show that the proposed method is more than 160 times faster than the full search whereas the PSNR and search speed are greatly improved when compared with the conventional method.\",\"PeriodicalId\":168349,\"journal\":{\"name\":\"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)\",\"volume\":\"16 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-06-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCE.2002.1013964\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCE.2002.1013964","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A fast motion estimation algorithm for DV to MPEG-2 conversion
A fast motion estimation algorithm for digital video (DV) to MPEG-2 conversion is described. Since DCT information is available from DV data and 2/spl times/2 IDCT can be achieved by simple summation and subtraction operations, a low-resolution image is constructed and used for a coarse motion search. Then a fine search is performed using an extended two step search in the original image domain. The experimental results show that the proposed method is more than 160 times faster than the full search whereas the PSNR and search speed are greatly improved when compared with the conventional method.
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