TY - JOUR
AU - Javidi, Bahram
AB - In this work we describe a method for optoelectronic encryption of 3D images based in digital holography. Phase-shift digital holography is used to record the complex ampli-tude distribution of the Fresnel diffraction patterns generated by a 3D object illuminated with coherent light. First, we review a technique to encrypt optically the information contained in a 2D object by using digital holography. The method is then extended to encrypt 3D information. In both cases encryption is performed by using random phase codes as key functions. Decryption can be carried out optical or digitally. We also show that, after decryption, 3D objects can be reconstructed digitally with different perspec-tives by performing simple operations on the decrypted hologram. Experimental results are presented.
TI - Three-dimensional image security
JF - Proceedings of SPIE
DO - 10.1117/12.419787
DA - 2001-02-28
UR - https://www.deepdyve.com/lp/spie/three-dimensional-image-security-zz0zcMQhIE
SP - 102980G
EP - 102980G-14
VL - 10298
IS - 
DP - DeepDyve
ER -