Abstract
A new technique for the optical encoding of images is presented. The method of generalized projections is used to design diffractive optical elements for the phase encryption of biometrics for security applications. The encryption algorithm converges rapidly, and the decryption is seen to be secure and tolerant to additive noise.
© 1996 Optical Society of America
Full Article | PDF ArticleMore Like This
Shan Tao, Chen Tang, Yuxin Shen, and Zhenkun Lei
Appl. Opt. 59(8) 2422-2430 (2020)
Yonghui Wang, Qinyu Zhao, Haoran Zhang, Tianlun Li, Wenjun Xu, Shuaiqi Liu, and Yonggang Su
Appl. Opt. 62(4) 1009-1018 (2023)
Wen Chen, Xudong Chen, and Colin J. R. Sheppard
Opt. Lett. 35(22) 3817-3819 (2010)