Letter Information optic

Optical Review

, Volume 8, Issue 6, pp 413-415

Fourier-plane encryption technique based on removing the effect of phase terms in a joint transform correlator

  • Se-Joon ParkAffiliated withDepartment of Electronic Engineering, Kyungpook National University Email author 
  • , Jong-Yun KimAffiliated withSchool of Information Technology Engineering, Kyungdong University
  • , Jang-Keun BaeAffiliated withDepartment of electronic Information, Kumi College
  • , Soo-Joong KimAffiliated withDepartment of Electronic Engineering, Kyungpook National University

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Abstract

We propose a Fourier-plane encryption technique based on a joint transform correlator (JTC). The technique is based on removing the effect of phase terms in JTC and the auto-correlation terms contribute to reconstructing the original image. Computer simulations and optical experiments show the proposed method is very useful for JTC architecture.

Key words

optical security system optical encryption joint transform correlator spatial light modulator square lawdevice computer generated hologram