Phase encryption of biometrics in diffractive optical elements

被引:41
作者
Johnson, EG
Brasher, JD
机构
[1] SY Technology, Inc., Huntsville, AL 35816
关键词
D O I
10.1364/OL.21.001271
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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. (C) 1996 Optical Society of America
引用
收藏
页码:1271 / 1273
页数:3
相关论文
共 7 条
  • [1] PHASE RETRIEVAL ALGORITHMS - A COMPARISON
    FIENUP, JR
    [J]. APPLIED OPTICS, 1982, 21 (15): : 2758 - 2769
  • [2] GERCHBERG RW, 1972, OPTIK, V35, P237
  • [3] JAVIDI B, 1994, OPT ENG, V33, P1752, DOI 10.1117/12.170736
  • [4] LEVI A, 1987, IMAGE RECOVERY THEOR, P277
  • [5] OPTICAL-IMAGE ENCRYPTION BASED ON INPUT PLANE AND FOURIER PLANE RANDOM ENCODING
    REFREGIER, P
    JAVIDI, B
    [J]. OPTICS LETTERS, 1995, 20 (07) : 767 - 769
  • [6] Youla D.C., 1987, IMAGE RECOVERY THEOR, P29
  • [7] DESIGN METHODS FOR SPACE-VARIANT OPTICAL INTERCONNECTIONS TO ACHIEVE OPTIMUM POWER THROUGHPUT
    ZALETA, D
    LARSSON, M
    DASCHNER, W
    LEE, SH
    [J]. APPLIED OPTICS, 1995, 34 (14): : 2436 - 2447