Chin. Phys. Lett.  2006, Vol. 23 Issue (3): 603-606    DOI:
Original Articles |
Optical Image Addition and Encryption by Multi-Exposure Based on Fractional Fourier Transform Hologram
CHEN Lin-Fei;ZHAO Dao-Mu
Department of Physics, Zhejiang University, Hangzhou 310027
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CHEN Lin-Fei, ZHAO Dao-Mu 2006 Chin. Phys. Lett. 23 603-606
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Abstract We propose a new method to add different images together by optical implementation that is realized by the multi-exposure based on fractional Fourier transform hologram. Partial image fusion is proposed and realized by this method. Multiple images encryption can also be implemented by the multi-exposure of the hologram based on fractional Fourier transform. Computer simulations prove that this method is valid.
Keywords: 42.30.Kq      42.30.-d     
Published: 01 March 2006
PACS:  42.30.Kq (Fourier optics)  
  42.30.-d (Imaging and optical processing)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I3/0603
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