|
|
|
| Call for Papers>>Final Program |
![]() |
| Abstract of admission as follows: |
| Digital Holographic Encryption System Based on Liquid Crystal Spatial Light Modulators |
| Chau-Jern Cheng
BS degree in Electronic Engineering in Chung Yuan Christian University，
MS and PhD degrees in Electro-Optical Engineering from
the National Chiao Tung University, Taiwan
Yi-Ta Lee, Xin-Ji Lai and Han-Yen Tu |
| Abstract |
| This work describes a digital holographic encryption technique based on programmable double key masks configuration. The double key masks are designed and implemented by using electrically addressed liquid crystal spatial light modulators operated at phase modulation mode. The architecture of four-step phase-shifting digital holography is used to generate the double key holograms for implementing the encryption and decryption. Both simulation and experimental results show that the feasibility of the digital holographic encryption system with double key masks in the Fourier or Fresnel domains for performing high-data-security properties and security enhancement. The proposed encryption system with electrically-addressed spatial light modulators provides the flexibility of key mask design by on-line processing. |
|
