Optical image encryption with spatially incoherent illumination.

A simple optical image encryption system with spatially incoherent illumination is proposed. Only one Fourier lens and one random phase plate are contained in this system. The original image is perturbed by a random phase-only mask located on the aperture plane. The encrypted information is the only intensity distribution that can be directly recorded by a CCD or CMOS. The decryption procedure can be performed digitally and the random phase distribution works as the decryption key. Numerical simulations and experimental results demonstrate the validity of the proposed method.

[1]  Yongtian Wang,et al.  Optical image encryption based on interference of polarized light. , 2009, Optics express.

[2]  B Javidi,et al.  Optical security and encryption with totally incoherent light. , 2001, Optics letters.

[3]  Wen-Nung Lie,et al.  Multiple-image encryption and multiplexing using a modified Gerchberg-Saxton algorithm and phase modulation in Fresnel-transform domain. , 2009, Optics letters.

[4]  C. Niu,et al.  An encryption method with multiple encrypted keys based on interference principle. , 2010, Optics express.

[5]  A. Lohmann,et al.  Optical correlation with totally incoherent light. , 1999, Optics letters.

[6]  Jingjuan Zhang,et al.  Double random-phase encoding in the Fresnel domain. , 2004, Optics letters.

[7]  Yan Zhang,et al.  Double images hiding based on optical interference , 2009 .

[8]  B Javidi,et al.  Optical image encryption based on input plane and Fourier plane random encoding. , 1995, Optics letters.

[9]  Jesús Lancis,et al.  Optical encryption based on computational ghost imaging. , 2010, Optics letters.

[10]  Bo Wang,et al.  Optical image encryption based on interference. , 2008, Optics letters.

[11]  Joseph Rosen,et al.  Non-scanning motionless fluorescence three-dimensional holographic microscopy , 2008 .

[12]  Joseph Rosen,et al.  Digital spatially incoherent Fresnel holography. , 2007, Optics letters.

[13]  B Javidi,et al.  Encrypted optical memory system using three-dimensional keys in the Fresnel domain. , 1999, Optics letters.

[14]  T. Yatagai,et al.  Optimal incoherent correlator for noisy gray-tone image recognition. , 1995, Optics letters.

[15]  G. Unnikrishnan,et al.  Optical encryption by double-random phase encoding in the fractional Fourier domain. , 2000, Optics letters.

[16]  Wen-Nung Lie,et al.  Fast double-phase retrieval in Fresnel domain using modified Gerchberg-Saxton algorithm for lensless optical security systems. , 2009, Optics express.

[17]  Myung K. Kim.  Adaptive optics by incoherent digital holography. , 2012, Optics letters.

[18]  S Liu,et al.  Optical image encryption with multistage and multichannel fractional Fourier-domain filtering. , 2001, Optics letters.