文章基本信息

标题：インテグラルフォトグラフィの撮影時におけるフォーカスに関する検討
本地全文：下载
作者：洗井淳 ; 星野春男 ; 山田光穗等
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：2001
卷号：55
期号：5
页码：678-687
DOI：10.3169/itej.55.678
出版社：The Institute of Image Information and Television Engineers
摘要：Integral photography (IP) is a technique for creating 3 D images that can be seen from any viewing point without the aid of special viewing glasses. In ordinary 2D imaging systems, if the camera is focused on a specific subject, other subjects which around it are out of focus, lowers the resolution of the picture. For IP, subjects that are widely distributed in the depth direction must be reproduced with high resolution. Detailed studies have not been made on filming. First, the characteristics of resolution by the product of their modulation transfer functions (overall MTF) is evaluated. Next, the relationship between the overall MTF at the Nyquist frequency for IP and how the pickup system is focused on the subject is clarified. It is found that by focusing on the observer or at infinity, constant responses can be gained for the reconstructed images whose original subjects are widely distributed towards depth direction.
关键词：MTF;インテグラルフォトグラフィ;立体画像;撮影方法;フォーカス;レスポンス