title: Phase retrieval encryption in an enhanced optical interference by key phase constraint.
abstract: In this paper, we demonstrate a security system by using optical interference and phase retrieval algorithm (PRA) techniques. The modified PRA is proposed to encode the target image into random phase distribution. Optical and digital methods can be used for decryption. By using this method, silhouette elimination is realized. In addition, due to this simplified system design, the iterative rate is improved and the optical decryption realization is easier. Validity and performance of the proposed system are demonstrated by means of numerical simulations. The system encryption capacity as to both binary and gray images is numerically investigated. Then, the decryption procedure is demonstrated by optical experiment means and the decryption result is given.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Shi
authors.forename: Ziyang
authors.initials: Z
authors.lastname: Chen
authors.forename: Daomu
authors.initials: D
authors.lastname: Zhao
authors.forename: Haidan
authors.initials: H
authors.lastname: Mao
authors.forename: Linfei
authors.initials: L
authors.lastname: Chen