Visual Cryptography by Speckle Pattern Illumination

  • Katsuhiro Uno Ibaraki University
  • Hoang Hoa Tien Dung Graduate school of science and engineering, Ibaraki University

Abstract

We used for the first time the speckle pattern created by the scattered laser beam from rough surfaces in order to perform the visual secret sharing (visual cryptography), which is alternative material for random grid pattern. Segmentation and binarization of the speckle pattern was performed for making one share embedding secret image. Reconstruction of the secret image was successfully achieved by the product between the share and the original speckle pattern.

Author Biographies

Katsuhiro Uno, Ibaraki University

I have now be researching the optical information processing,

and be teaching the optics in the Ibaraki University as an assistant professor.

Hoang Hoa Tien Dung, Graduate school of science and engineering, Ibaraki University
I have now be studying the visual cryptography as a student of graduate school of science and engineering, Ibaraki University.

References

M. Naor, and A. Shamir, “Visual cryptography”, Advances in Cryptology - EUROCRYPT’94, Lecture Notes in Computer Science, Vol.950, pp.1-12, 1995.

O. Kafri, and E. Keren, “Encryption of pictures and shapes by random grids”, Optics Letters, Vol.12, No.6, pp.377-379, 1987.

S. J. Shyu, “Image encryption by random grids”, Pattern Recognition, Vol.40, No.3, pp.1014-1031, 2007.

S. J. Shyu, “Image encryption by multiple random grids”, Pattern Recognition, Vol.42, No.7, pp.1582-1596, 2009.

J. W. Goodman, “Introduction to Fourier Optics”, McGrawhill, 2nd. ed., Chap.5, pp.96-120, 1996.

J. W. Goodman, “Statistical properties of laser speckle pat- terns in Laser speckle and related phenomena 2nd enlarged ed.”, Springer-Verlag, pp.9-75, 1984.

J. W. Goodman “Speckle Phenomena in Optics : Theory and Applications”, Roberts & Company, Chap.4, pp.59-139, 2007.

Published
2016-01-25
How to Cite
Uno, K., & Dung, H. H. T. (2016). Visual Cryptography by Speckle Pattern Illumination. Journal of the Institute of Industrial Applications Engineers, 4(1), 26. https://doi.org/10.12792/jiiae.4.26
Section
Articles