フレネル型計算機ホログラムの高速計算法

• 資料種別: 記事
• タイトル: フレネル型計算機ホログラムの高速計算法
• 著者標目: 西 省吾; 居細工 成健; 河原田 健; 森 邦彦
• 出版年月日等: 1997
• 出版年（W3CDTF）: 1997
• タイトル（掲載誌）: 映情学技報
• 巻号年月日等（掲載誌）: 21.66 0
• 掲載巻: 21.66
• 掲載号: 0
• 掲載ページ: 17-20
• 掲載年月日（W3CDTF）: 1997
• ISSN（掲載誌）: 13426893
• 出版事項（掲載誌）: The Institute of Image Information and Television Engineers
• 本文の言語コード: ja
• 対象利用者: 一般
• DOI: 10.11485/itetr.21.66.0_17; https://doi.org/10.11485/itetr.21.66.0_17
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: Japan Link Center; https://japanlinkcenter.org/top; CiNii Articles
• NII論文ID: 110003690926

• 要約等: Computer-generated Fresnel hologram (Fresnel CGH) for three dimensional object can be made by calculation of Fresnel diffraction which is represented by triple integral. However, the computational complexity is very large, and it is not realistic method. Meanwhile, Fresnel CGH made by two dimensional Fourier transforms of each images sampled at a direction of depth is proposed. By this method, the computational complexity is proportional to the sampling number on depth. Therefore, only an object with limited information about the depth can be recorded by this method. In this paper, we proposed novel method for fast calculation of Fresnel CGH. It is to use two dimensional projected image holding on the depth information of the object, instead of three dimensional object, in the equation of Fresnel diffraction. Proposed Fresnel CGH can reconstruct an three dimensional object with continuous depth information. Some experimental results are also presented.
• DOI: 10.11485/itetr.21.66.0_17
• オンライン閲覧公開範囲: インターネット公開
• 連携機関・データベース: 科学技術振興機構 : J-STAGE; http://www.jstage.jst.go.jp