A Three-Dimensional Optical Image Cryptosystem Based on Integral Imaging

Optical image encryption techniques have attracted significant interest as they offer the possibility of high-speed parallel processing of image data, of hiding information in many different dimensions. A three-dimensional optical image cryptosystem integral imaging-based in Fresnel domain is proposed. In the Fresnel domain, three-dimensional data is encrypted and decrypted by computational integral imaging system that is implemented with smart pseudoscopic-to-orthoscopic conversion model. Optical implementations are discussed as numerical implementation algorithms. Numerical simulation results are presented to emonstrate the system´s flexibility, security and robustness. The research can be applied in the aspects of cloud computing and big data.