Phase-code holographic multiplex recording method using symmetric phase conditions of discrete cosine transform

Norihiko Ishii, Nobuhiro Kinoshita, Hirotaka Shiino, Hideo Fujikake, Koji Kamijo, Naoki Shimizu, Fumio Sato

研究成果: Article査読

抄録

We developed a phase-code multiplexing method using discrete cosine transform. In theory, parts of a phase code must be changed because of symmetric phase conditions. We created a 3 × 3 phase code condition. Our method has no restriction on the pixel number in contrast with Walsh-Hadamard transform, whose pixel number is 2n. In addition, it has a faster data-transfer-rate because the distance from one phase to another is shorter than in Wlash-Hadamard. We fabricated a phase modulator using liquid crystal and measured the multiplexing recording and reproduction characteristics. We found that multiplexing images could be reproduced with some cross talk. It is important to control the phase precisely.

寄稿の翻訳タイトルPhase-code holographic multiplex recording method using symmetric phase conditions of discrete cosine transform
本文言語Japanese
ページ(範囲)1869-1874
ページ数6
ジャーナルKyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers
59
12
DOI
出版ステータスPublished - 2005 12
外部発表はい

ASJC Scopus subject areas

  • Media Technology
  • Computer Science Applications
  • Electrical and Electronic Engineering

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