文章基本信息

标题：Total-Variation正則化を用いたシャープニング-デモザイキング法
本地全文：下载
作者：小松隆 ; 齊藤隆弘
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2007
卷号：61
期号：11
页码：1621-1632
DOI：10.3169/itej.61.1621
出版社：The Institute of Image Information and Television Engineers
摘要：We previously presented a demosaicing method that simultaneously removes image blurs caused byoptical low-pass filters used in digital color cameras with Bayer's-RGB color filter array.This sharpening-demosaicing method restores only spatial frequency components lower than the Nyquist frequency corresponding to the mosaicing pattern,but it often produces ringing artifacts near color edges.To overcome this problem,we added a new total-variation regularization-based super-resolution technique.We analyzed the effects of the added technique using the DFT method.We also created a false-color suppression method using the TV regularization.Simulation results show that the TV-regularization-based super-resolution technique effectively demosaics sharp color images while restoring sharp step-edges and without producing ringing artifacts near the edges.
关键词：ぼけ補正;補間;TV正則化;超解像;光学ローパスフィルタ