Optical image encryption based on multi-beam interference and common vector decomposition

详细信息    查看全文

• 作者：Linfei Chen^a ; ^{chenlinfei2004@163.com" class="auth_mail" title="E-mail the corresponding author} ; Bingyu He^a ; Xudong Chen^b ; Xiong Gao^a ; Jingyu Liu^a
• 关键词：42.30.-d ; 42.30.Kq ; 42.30.Va ; Keywords ; Optical image encryption ; Interference ; Common vector decomposition
• 刊名：Optics Communications
• 出版年：2016
• 出版时间：15 February 2016
• 年：2016
• 卷：361
• 期：Complete
• 页码：6-12
• 全文大小：4752 K

文摘

Based on multi-beam interference and common vector decomposition, we propose a new method for optical image encryption. In encryption process, the information of an original image is encoded into n amplitude masks and n phase masks which are regarded as a ciphertext and many keys. In decryption process, parallel light irradiates the amplitude masks and phase masks, then passes through lens that takes place Fourier transform, and finally we obtain the original image at the output plane after interference. The security of the encryption system is also discussed in the paper, and we find that only when all the keys are correct, can the information of the original image be recovered. Computer simulation results are presented to verify the validity and the security of the proposed method.