【摘要】 提出了一种用于多视点视频的信息隐藏算法。在多视点视频编码的运动估计和补偿过程中,通过调制编码块所采用的参考帧序号实现信息嵌入。为了保持最优参考帧概率分布规律不变,根据统计分析对参考帧进行了优化分组。优化分组还将相似的参考帧映射为不同的分组,从而降低了信息嵌入对编码码率的影响。提取嵌入信息时不需要原始视频。实验结果表明,算法保持了最优参考帧的概率分布规律,且能较好地保持视频质量,没有引起码率的显著增长。更多还原

【Abstract】 This paper presents a new method for multi-view video information hiding.In the motion estimation and compensation stage of multi-view video encoding,reference frames were modulated to embed secret information.According to statistical analysis result,reference frames were divided into two groups in an optimized way.In this way,the probability distribution of best reference frames remained unchanged.The optimization also helped reduce the bit rate increase by mapping similar reference frames into different groups.Secret information can be extracted without original video.Experiment results show that video quality and the probability distribution of best reference frames are maintained and this method does not cause significant bit rate increase.更多还原