レンズアレイを用いた自由視点画像合成システムにおける撮像光学系の空間周波数特性(<小特集>3次元映像情報メディア技術)

概要

論文の詳細を見る
Image-based rendering (IBR) is a technique for synthesizing arbitrary views of real scenes from a set of preacquired images. We have proposed a real-time IBR system using a lens array, which can capture thousands of multiple viewpoint images of a 3D scene. The quality of synthesized images depends on the configuration of the optical system, but detailed analysis based on optics has not been proposed. In this paper, we formulate the upper limit of the spatial frequency captured by the optical system by analyzing the blurring effect and the sampling effect on the image sensor. Based on this result, the trade-off relationship between several system features is clarified, which is applicable to the configuration of the capturing system. We examine our theory by experiment using the actual system.
社団法人映像情報メディア学会の論文
2005-04-01