A 3-D Encryption Technique Using Computer-Generated Hologram
The techniques of hologram for encryption and decryption have been widely researched and applied.Almost all the information of encryption is 2-D image.Parameters (wave length,recording distance,incidence angle,etc.) are regarded as the encoded keysfor encryption and decryption. In the paper a novel way to encrypt 3-D information is proposed,which is based on technique of virtual optics. A new encoded key is introduced into security hologram,the size of 3-D object,which may play an important role for better protection against counterfeiting. Furthermore,a new image quality assessment is proposed to estimate the reconstruction 3-D object of CGH called Modified PSNR (peak signal-to-noise ratio). Simulation experiments show that CGH is an effective encryption technique,and Modified PSNR is a proper definite quantity analysis method for 3-D imaging.
Zhou Zhang Guo-dong Liu Yi-qing Gao Xiao-qiang Hu Sheng-qian Wang
Key Laboratory of Nondestructive Test of Ministry of Education of China,Nanchang Hangkong University Key Laboratory of Nondestructive Test of Ministry of Education of China,Nanchang Hangkong University Jiangxi Key Lab of Photoelectron and Communication,Jiangxi Science and Technology Normal University,
国际会议
成都
英文
3-6
2008-01-01（万方平台首次上网日期，不代表论文的发表时间）