| 基于非对称离散分数傅里叶变换双相位编码技术对二维条码图像加、解密的研究 |
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| 引用本文： | 励强华,荣宪伟,孙英杰.基于非对称离散分数傅里叶变换双相位编码技术对二维条码图像加、解密的研究[J].哈尔滨师范大学自然科学学报,2006,22(5):39-43. |
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| 作者姓名： | 励强华 荣宪伟 孙英杰 |
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| 作者单位： | 哈尔滨师范大学;黑龙江省教育学院 |
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| 摘 要： | 在现有光学图像加密一种方法(分数傅里叶双随机相位编码技术)的基础上,提出一种改进的基于非对称离散分数傅里叶变换双相位编码光学加密方法,并用计算机模拟两种方法对二维条码图像进行加密、解密的过程,比较两种方法的仿真实验结果中两种方法的加密性能和解密图像的质量优劣.
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| 关 键 词： | 二维条码 图像加密 非对称离散分数傅里叶变换 双随机相位 |
| 修稿时间： | 2006年3月28日 |
THE STUDY OF IMPLEMENTING THE TWO RAND PHASEENCODING TECHNIQUE BASED ON DISSYMMETRICAL FRACTIONAL FOURIER TRANSFORM TO ENCRYPT AND DECRYPT TWO-DIMENSIONAL BAR CODE |
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| Li Qianghua,Rong Xianwei,Sun Yingjie.THE STUDY OF IMPLEMENTING THE TWO RAND PHASEENCODING TECHNIQUE BASED ON DISSYMMETRICAL FRACTIONAL FOURIER TRANSFORM TO ENCRYPT AND DECRYPT TWO-DIMENSIONAL BAR CODE[J].Natural Science Journal of Harbin Normal University,2006,22(5):39-43. |
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| Authors: | Li Qianghua Rong Xianwei Sun Yingjie |
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| Institution: | Li Qianghua Rong Xianwei(Harbin Normal University) Sun Yingjie(Heilongjiang College of Education) |
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| Abstract: | The aim of this paper based on the technique of encryption in optical image(ie. Fractional Fourier transform),is to raise an new improved way which is dissymmetrical discrete Fractional Fourier transform two rand phase encoding,also to use computer to imitate the process of the two ways of encryption and decryption on two-dimensional bar code image.comparing the two way's the advantages and disadvantages of encrypted function and decrypted image quality in simulated experimental results. |
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| Keywords: | Two-dimensional bar code Image encryption Dissymmetrical discrete Fractional Fourier transform Two rand phase encode |
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