一种应用于广播监视的视频水印方案

A Video Watermarking Scheme for Broadcast Monitoring

针对广播监视中的视频认证问题,提出一种基于宿主视频特征值的水印算法：首先结合三维小波变换和离散余弦变换变换提取视频特征值,并利用特征值和版权保护信息共同组成水印信息,然后根据人眼视觉特征自适应的选取嵌入区域,并利用扩频通信技术提高水印的鲁棒性。理论分析和实验结果表明,提出的水印算法抗攻击能力强,实时性好,可用于视频认证。

According to the problem of video authentication in broadcast monitoring,A watermark scheme based on video features was proposed.Firstly,the video features were extracted by using 3D discrete wavelet transform and discrete cosine transform,then the video features and watermark identifier information created watermark.Secondly,the human visual characteristics were used to select a self-adaptive embedding locations,after that,the spread spectrum communication technology solution was applied to in crease the watermark robustness.Academic analysis and experimental results show the scheme can resist various attacks and has good real-time capabilities,the scheme can be used to video authentication.