A multiple-3D-object encryption method is proposed for encrypting multiple three-dimensional (3D) objects based on the 3-step phase shifting method. Five phase functions (PFs) are decreased to three PFs in comparison with our previous method, which implies that one cross beam splitter is utilized to implement the single decryption interference. Moreover, the advantages of the proposed scheme also retain all of the advantages of our previous method. The feasibility of the proposed scheme will be demonstrated by computer simulation results.
© 2016 Optical Society of AmericaPDF Article