基于秘密共享的H.264/AVC鲁棒性视频隐写方法

提出了一种基于秘密共享的H.264/AVC鲁棒性视频隐写方法．该方法首先利用（t,n）门限秘密共享技术将需要嵌入的秘密信息利用多项式分发成一系列子秘密,然后通过H.264/AVC的预测模式选择嵌入块，通过双系数选择嵌入位置,最后将分发好的子秘密嵌入到视频的各个帧中.提取时,只需获取视频中部分t个子秘密就可恢复秘密信息.实验结果表明,该方法有较强的帧丢失、帧错鲁棒性,在随机丢帧率小于等于20%的情况下能完全恢复秘密信息,还能效控制帧内失真漂移,视觉效果良好.

Robust steganography method in H.264/AVC with secret sharing

This paper proposes a robust steganography method in H.264/AVC with secret sharing.The embedded secret data is first distributed as a specific polynomial,then we obtain a series of sub-secret and embed the sub-secret into each frame of the video with prediction mode and paired-coefficients.We can restore the complete hidden data by using the t sub-secrets of the video frames.The experiment results show that the method has the high frame loss and frame error robustness,when the random frame rate is less than or equal to 20%,the method can recover secret data completely.In addition,the method can avoid intra-frame distortion drift and has better visual concealment.