Realization Scheme for Visual Cryptography with Computer-generated Holograms
Tao Yu, Jinge Ma, Guilin Li, Dongyu Yang, Rui Ma, and Yishi Shi

TL;DR
This paper introduces a novel approach to visual cryptography using computer-generated holograms, enabling optical reproduction and superimposition to enhance security and expand application possibilities.
Contribution
The paper presents a new method of implementing visual cryptography through hologram encoding, allowing optical share reproduction and superimposition for improved security.
Findings
Enhanced security of visual cryptography through hologram encoding
Expanded application range of visual cryptography techniques
Successful optical superimposition and decryption demonstrated
Abstract
We propose to realize visual cryptography in an indirect way with the help of computer-generated hologram. At present, the recovery method of visual cryptography is mainly superimposed on transparent film or superimposed by computer equipment, which greatly limits the application range of visual cryptography. In this paper, the shares of the visual cryptography were encoded with computer-generated hologram, and the shares is reproduced by optical means, and then superimposed and decrypted. This method can expand the application range of visual cryptography and further increase the security of visual cryptography.
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Taxonomy
TopicsAdvanced Optical Imaging Technologies · Advanced Steganography and Watermarking Techniques · Chaos-based Image/Signal Encryption
