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Chin. Phys. B, 2018, Vol. 27(3): 034202    DOI: 10.1088/1674-1056/27/3/034202
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

Optical encryption of multiple three-dimensional objects based on multiple interferences and single-pixel digital holography

Ying Wang(王莹), Qi Liu(刘琦), Jun Wang(王君), Qiong-Hua Wang(王琼华)
School of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
Abstract  We present an optical encryption method of multiple three-dimensional objects based on multiple interferences and single-pixel digital holography. By modifying the Mach-Zehnder interferometer, the interference of the multiple objects beams and the one reference beam is used to simultaneously encrypt multiple objects into a ciphertext. During decryption, each three-dimensional object can be decrypted independently without having to decrypt other objects. Since the single-pixel digital holography based on compressive sensing theory is introduced, the encrypted data of this method is effectively reduced. In addition, recording fewer encrypted data can greatly reduce the bandwidth of network transmission. Moreover, the compressive sensing essentially serves as a secret key that makes an intruder attack invalid, which means that the system is more secure than the conventional encryption method. Simulation results demonstrate the feasibility of the proposed method and show that the system has good security performance.
Keywords:  multiple three-dimensional objects encryption      single-pixel digital holography      phase-shifting interference      compressive sensing  
Received:  05 September 2017      Revised:  31 October 2017      Accepted manuscript online: 
PACS:  42.30.-d (Imaging and optical processing)  
  42.30.Va (Image forming and processing)  
  42.40.My (Applications)  
  42.40.Kw (Holographic interferometry; other holographic techniques)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61405130 and 61320106015).
Corresponding Authors:  Jun Wang     E-mail:  jwang@scu.edu.cn

Cite this article: 

Ying Wang(王莹), Qi Liu(刘琦), Jun Wang(王君), Qiong-Hua Wang(王琼华) Optical encryption of multiple three-dimensional objects based on multiple interferences and single-pixel digital holography 2018 Chin. Phys. B 27 034202

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