一种基于水印技术的CMMB安全监测方法

CMMB Safety Monitoring Method Based on Watermarking Technology

针对迅速发展的CMMB和越发重要的安全播出,提出一种安全监测方案。该方案基于数字水印技术,使用多层结构的小波变换,将水印信息嵌入到小波系数最底层的水平细节分量和垂直细节分量中去。实验结果表明,该算法简单易行,并对常规的干扰具有良好的透明性和稳健性。

A safety monitoring program for the rapid development and security broadcasting of CMMB is presented. The progrmn is based on digital wateruaarking technology. It uses multi-layer structure of the wavelet transform. The watermark information is embedded into level detail components and vertical detail component of the lowest wavelet coefficients. The experimental results show that the algorithm is simple and good transparency and robustness with routine interference.