{"title":"High-performance two-step lagrange interpolation technique for 4K UHD applications","authors":"Yunho Park, Youngmin Kim, Youngjoo Lee","doi":"10.1109/ISOCC.2017.8368888","DOIUrl":null,"url":null,"abstract":"In this paper, we present an advanced interpolation algorithm to up-scale high definition (HD) and full-HD streams to 4K ultra-HD (UHD) videos. The proposed method basically adopts the 4-point-based Lagrange interpolation. When the interpolated pixel value using Lagrange interpolation is invalid, the order Lagrange polynomial is reduced for selecting more reliable results. By removing the unwanted overshooting or undershooting values in the high-order interpolation results, as a result, the proposed algorithm achieves improved visual quality.","PeriodicalId":248826,"journal":{"name":"2017 International SoC Design Conference (ISOCC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 International SoC Design Conference (ISOCC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISOCC.2017.8368888","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
In this paper, we present an advanced interpolation algorithm to up-scale high definition (HD) and full-HD streams to 4K ultra-HD (UHD) videos. The proposed method basically adopts the 4-point-based Lagrange interpolation. When the interpolated pixel value using Lagrange interpolation is invalid, the order Lagrange polynomial is reduced for selecting more reliable results. By removing the unwanted overshooting or undershooting values in the high-order interpolation results, as a result, the proposed algorithm achieves improved visual quality.
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