文章基本信息

标题：単一のレンズ系からの多様なボケ味の生成
本地全文：下载
作者：児玉和也 ; 久保田彰
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：2011
卷号：65
期号：3
页码：372-381
DOI：10.3169/itej.65.372
出版社：The Institute of Image Information and Television Engineers
摘要：We propose a method of virtual bokeh reconstruction by using only multiple differently-focused images acquired with a single system of lenses. First, we analyzed our previously proposed 3-D blurring filter that combines scene information and the acquired multiple differently-focused images to decompose the filter into ray-sets, each of which goes through a certain point on the lens. A new 2-D filter based on dimension reduction was then designed to allow the ray-sets to be reconstructed without the need to estimate the scene. A weighted composition of them provides free shapes of bokeh, i.e., the desired features of lenses and irises. Virtual bokeh reconstruction was simulated by utilizing synthetic multiple differently-focused images with a number of shapes of bokeh. The criteria for appropriate bokeh for image acquisition were also clarified. Finally, we show experimental results of virtual bokeh reconstruction from real images.
关键词：焦点;ぼけ;3次元;フィルタ;レンズ;光線