A NOVEL OPTIMAL DECODING ALGORITHM OF MULTIBIT MULTIPLICATIVE WATERMARKS

摘要：

　　This paper presents a novel optimal watermark decoding algorithm of multibit multiplicative watermarks using Bessel k form of density function (BKF).In the proposed algorithm,the wavelet coefficients of detail subband are assumed to obey BKF,the classical spread spectrum watermarking is used for watermark embedding,the optimal multi-bit watermark decoding comes down to a maximum likelihood (ML) detection.Experimental results show that the proposed algorithm obtains the optimal watermark deceding.

关键词： Bessel K form densities multibit multiplicative watermarks maximum likelihood detection optimal watermark decoding

作者: LI-HONG CUI LI-NA ZHAO WEN-GUO LI

作者单位: Faculty of Mathematics and Computer Science, Beijing University of Chemical Technology, Beijing 100029, China

会议类型: 国际会议

会议名称: 2011 International Conference on Wavelet Analysis and Pattern Recognition(2011小波分析与模式识别国际会议)

会议地点: 桂林

会议语种:英文

页码: 73-76

在线出版日期: 2011-07-10（万方平台首次上网日期，不代表论文的发表时间）