Abstract

We propose a new technique for the optical encryption of gray-level optical images digitized into 8-bits binary data by ASCII encoding followed by QPSK modulation. We made an encrypted digital hologram with a security key by using 2-step phase-shifting digital holography, and the encrypted digital hologram is recorded on a CCD camera with 256 gray-level quantized intensities. With these encrypted digital holograms, the phase values are reconstructed by the same security key and are decrypted into the original gray-level optical image by demodulation and decoding. Simulation results show that the proposed method can be used for cryptosystems and security systems.

© 2010 Optical Society of Korea

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    [Crossref]
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    [Crossref]
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    [Crossref]
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    [Crossref]
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    [Crossref]
  18. D. Kim and Y. J. Cho, “3-D surface profile measurement using an acousto-optic tunable filter based on spectral phase shifting technique,” J. Opt. Soc. Korea 12, 281-287 (2008).
    [Crossref]

2008 (3)

S. H. Jeon, Y. G. Hwang, and S. K. Gil, “Optical encryption of gray-level image using on-axis and 2-f digital holography with two-step phase-shifting method,” Opt. Rev. 15, 181-186 (2008).
[Crossref]

M.-O. Jeong, N. Kim, and J.-H. Park, “Elemental image synthesis for integral imaging using phase-shifting digital holography,” J. Opt. Soc. Korea 12, 275-280 (2008).
[Crossref]

D. Kim and Y. J. Cho, “3-D surface profile measurement using an acousto-optic tunable filter based on spectral phase shifting technique,” J. Opt. Soc. Korea 12, 281-287 (2008).
[Crossref]

2007 (1)

S. K. Gil, H. J. Byun, H. J. Lee, S. H. Jeon, and J. R. Jeong, “Optical encryption of binary data information with 2-step phase-shifting digital holography,” Proc. SPIE 6488, 648812 (2007).
[Crossref]

2006 (2)

S. K. Gil, S. H. Jeon, N. Kim, and J. R. Jeong, “Successive encryption and transmission with phase-shifting digital holography,” Proc. SPIE 6136, 339-346 (2006).

P. Hariharan, “Error analysis for optical security by means of 4-step phase-shifting digital hologaphy,” J. Opt. Soc. Korea 10, 118-123 (2006).
[Crossref]

2004 (1)

F. Zhang, J. D. R. Valera, and I. Yamaguchi, “Vibration analysis by phase shifting digital holography,” Opt. Rev. 11, 297-299 (2004).
[Crossref]

2003 (1)

G.-S. Lin, H. T. Chang, W.-N. Lie, and C.-H. Chuang, “Publickey-based optical image cryptosystem based on data embedding techniques,” Opt. Eng. 42, 2331-2339 (2003).
[Crossref]

2000 (2)

G. Unnikrishnan and K. Singh, “Double random fractional Fourier domain encoding for optical security,” Opt. Eng. 39, 2853-2859 (2000).
[Crossref]

E. Tajahuerce, O. Matoba, S. C. Verrall, and B. Javidi, “Optoelectronic information encryption with phase-shifting interferometry,” Appl. Opt. 39, 2313-2320 (2000).
[Crossref]

1999 (2)

E. Cuche, F. Bevilacqua, and C. Depeursinge, “Digital holography for quantitative phase-contrast imaging,” Opt. Lett. 24, 291-293 (1999).
[Crossref]

D. Weber and J. Trolinger, “Novel implementation of nonlinear joint transform correlators in optical security and validation,” Opt. Eng. 38, 62-68 (1999).
[Crossref]

1998 (1)

I. Yamaguchi and T. Zhang, “Phase-shifting digital holography,” Opt. Lett. 22, 610-612 (1998).

1995 (2)

1994 (1)

B. Javidi and J. L. Horner, “Optical pattern recognition for validation and security verification,” Opt. Eng. 33, 1752-1756 (1994).
[Crossref]

1990 (1)

1987 (1)

Appl. Opt. (3)

J. Opt. Soc. Korea (1)

Journal of the Optical Society of Korea (2)

M.-O. Jeong, N. Kim, and J.-H. Park, “Elemental image synthesis for integral imaging using phase-shifting digital holography,” J. Opt. Soc. Korea 12, 275-280 (2008).
[Crossref]

D. Kim and Y. J. Cho, “3-D surface profile measurement using an acousto-optic tunable filter based on spectral phase shifting technique,” J. Opt. Soc. Korea 12, 281-287 (2008).
[Crossref]

Opt. Eng. (4)

G. Unnikrishnan and K. Singh, “Double random fractional Fourier domain encoding for optical security,” Opt. Eng. 39, 2853-2859 (2000).
[Crossref]

B. Javidi and J. L. Horner, “Optical pattern recognition for validation and security verification,” Opt. Eng. 33, 1752-1756 (1994).
[Crossref]

D. Weber and J. Trolinger, “Novel implementation of nonlinear joint transform correlators in optical security and validation,” Opt. Eng. 38, 62-68 (1999).
[Crossref]

G.-S. Lin, H. T. Chang, W.-N. Lie, and C.-H. Chuang, “Publickey-based optical image cryptosystem based on data embedding techniques,” Opt. Eng. 42, 2331-2339 (2003).
[Crossref]

Opt. Lett. (4)

Opt. Rev. (2)

F. Zhang, J. D. R. Valera, and I. Yamaguchi, “Vibration analysis by phase shifting digital holography,” Opt. Rev. 11, 297-299 (2004).
[Crossref]

S. H. Jeon, Y. G. Hwang, and S. K. Gil, “Optical encryption of gray-level image using on-axis and 2-f digital holography with two-step phase-shifting method,” Opt. Rev. 15, 181-186 (2008).
[Crossref]

Proc. SPIE (2)

S. K. Gil, S. H. Jeon, N. Kim, and J. R. Jeong, “Successive encryption and transmission with phase-shifting digital holography,” Proc. SPIE 6136, 339-346 (2006).

S. K. Gil, H. J. Byun, H. J. Lee, S. H. Jeon, and J. R. Jeong, “Optical encryption of binary data information with 2-step phase-shifting digital holography,” Proc. SPIE 6488, 648812 (2007).
[Crossref]

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