Random phase encoding achievement of color images under spotlight illumination

FENG Jun-bo; ZHOU Xin

In order to achieve single random phase encoding of color images,based on the principle of random phase encoding and multi-wavelength technology,the random phase encoding of trichromatic images was realized.Theoretical analysis and digital simulation results show that using spotlight illumination systems to realize random phase encoding of color images is feasible.As the installations are reduced,the light energy losses and the corresponding image noise from random phase mask is effectively reduced.

Corresponding author: ZHOU Xin, zhoxn@21cn.com

1. College of Electronic Information, Sichuan University, Chengdu 610065, China

Received Date: 2007-09-17

Accepted Date: 2007-11-05

Available Online: 2008-12-25

Abstract: In order to achieve single random phase encoding of color images,based on the principle of random phase encoding and multi-wavelength technology,the random phase encoding of trichromatic images was realized.Theoretical analysis and digital simulation results show that using spotlight illumination systems to realize random phase encoding of color images is feasible.As the installations are reduced,the light energy losses and the corresponding image noise from random phase mask is effectively reduced.

HTML

Reference (18)

[1]	REFREGIER P,JAVIDI B.Optical image encryption based on input plane and Fourier plane random encoding[J].Opt Lett,1995,20(7):767-769.
[2]	SITU G H,ZHANG J I.Double random phase encoding in the Fresnel domain[J].Opt Lett,2004,29(14):1548-1586.
[3]	DENG X P,ZOU K.Optical image encryption using one random phase mask based on spotlight illumination in the Fresnel domain[J].Laser Technology,2006,30(3):327-328(in Chinese).
[4]	DENG X P,XIANG G X,WANG Sh F.Optical image encryption using only one random phase mask based on spherical wave illumination[J].Laser Journal,2005,26(5):52-53(in Chinese).
[5]	ZHANG S Q,KARIM M A.Color image encryption using double random phase encoding[J].Microwave Optical Technology Letters,1999,21(19):318-323.
[6]	SITU G H,ZHANG J J.Multiple-image encryption by wavelength multiplexing[J].Opt Lett,2005,30(11):1306-1308.
[7]	LIU Sh T,MI Q L,ZHU B H.Optical image encryption with multistage and multichannel fractional Fourier-domain filtering[J].Opt Lett,2000,25(16):1242-1244.
[8]	NICOALS J,IEMMI C,COMPOS J,et al.Optical encoding of color three-dimensional correlation[J].Opt Commun,2002,209:35-43.
[9]	LEDESMA S,IEMMI C,VILLARREAL M,et al.Multichannel correlation by color multiplexing[J].Opt Commun,1999,166:173-180.
[10]	CHEN L F,ZHAO D M.Optical image addition and encryption by multiexposure based on fractional Fourier transform hologram[J].Chinese Physical Letters,2006,23(3):603-606.
[11]	CHEN L F,ZHAO D M.Optical color image encryption by wavelength multiplexing and lensless Fresnel transform holograms[J].Optical Express,2006,14(19):8552-8560.
[12]	WANG X G,ZHAO D M,FENG J,et al.Information synthesis (complex amplitude addition and subtraction) and encryption with digital holography and virtual optics[J].Optical Express,2006,14(4):1476-1485.
[13]	WANG Sh F,ZHU Zh Q.Principle of modem optics[M].Chengdu:University of Electronic Science and Technology of China Press,1998:117-118(in Chinese).
[14]	GABOR D,STROKE G W,RESTRICK R,et al.Optical image synthesis (complex amplitude addition and subtraction) by holographic Fourier transformation[J].Phys Lett,1965,18(2):116-118.
[15]	JAVIDI B,NOMURA T.Securing information by use of digital holography[J].Opt Lett,2000,25(1):28-30.
[16]	NOBUKAZU Y S,MASAHIDEITOH Y,TOYOHIKO Y.Binary computer-generated holograms for security applications from a synthetic double-exposure method by electron-beam lithography[J].Opt Lett,1998,23(18):1483-1485.
[17]	WANG H Y,WANG D Y,XIE J J,et al.Study of the recording condition about the digital hologram recorded with spherical reference wave[J].Laser Journal,2007,28(1):44-46(in Chinese).
[18]	YUAN C J,ZHONG L Y,WANG Y P,et al.The analysis of off-axis digital holographic recording condition[J].Laser Technology,2004,28(5):482-484(in Chinese).

Random phase encoding achievement of color images under spotlight illumination

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views