文章基本信息

标题：多焦点画像処理のための位置合わせ手法と撮像系の構築
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作者：久保田彰 ; 児玉和也 ; 相澤清晴等
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：2000
卷号：54
期号：2
页码：260-267
DOI：10.3169/itej.54.260
出版社：The Institute of Image Information and Television Engineers
摘要：We describe an image-registration method and a camera system for multi-focus image processing. We also describe a novel method for high-speed generation_ of arbitrarily focused images using graphic accelerator. The registration method uses global and local registration. The former corrects for differences in the displacement and scale between acquired images by using a hierarchical block-matching technique; the latter corrects for local deformation due to lens distortion. The developed camera can capture three differently focused images simultaneously for the same scene, so that, we can generate an arbitrarily focused image for dynamic scene. Finally, we show example motion images with an arbitrary focus generated from two differently focused image sequences captured by the proposed camera.
关键词：グラフィックスアクセラレータ;高速演算;レジストレーション;任意焦点画像;映像生成;多焦点カメラ