<bold>Application and Numerical Implementation of Fractional Calculus </bold>to Digital Watermark

被引：0
|
作者：
Jia Huading [1 ,3 ]
Pu Yifei [2 ]
机构：
[1] Sichuan Univ, Inst Image & Graph, Chengdu 610064, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Elect Engn, Chengdu 610074, Peoples R China
[3] Southwest Univ Finance & Econ, Sch Econ Infomat Engn, Chengdu 610074, Peoples R China
来源：
2006 8TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, VOLS 1-4 | 2006年
关键词：
fractional calculus; fractional order; pseudo-random sequence; wavelet transform; normalized cross correlation function;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The paper mainly concerns and studies the application and implementation of fractional calculus to digital watermark algorithm. In the first, it discusses how to implement fractional calculus pseudo-random sequence by the sampling deviation of fractional calculus sinusoidal signal. In addition, it puts forward a fractional calculus based digital watermark algorithm, the security of which depends on the unknown of fractional orders and initial phrases. In the last, it proves the imperceptibility and robustness of this algorithm by simulation experiment, and shows that whether the embedded digital watermark sequence is extracted completely depends on the awareness of fractional order and initial phrase.
引用
收藏
页码：1261 / +
页数：2
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