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

Translated title of the contribution: 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

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Translated title of the contributionPhase-code holographic multiplex recording method using symmetric phase conditions of discrete cosine transform
Original languageJapanese
Pages (from-to)1869-1874
Number of pages6
JournalKyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers
Volume59
Issue number12
DOIs
Publication statusPublished - 2005 Dec

ASJC Scopus subject areas

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

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