H.264/AVC视频可逆信息隐藏算法

Reversible Information Hiding Algorithm for H.264/AVC

结合H.264压缩编码标准的特性,提出一种基于H.264/AVC的视频可逆信息隐藏算法。数据隐藏借鉴了图像领域的直方图平移算法,嵌入区域选择在4×4子块的中高频段,保证了视频嵌入后的视觉感知质量。在解码端,可以准确提取嵌入的隐秘信息,并能无失真的恢复原始载体视频。实验结果表明,该算法对视频质量和码率的影响较小。

Combined with the new features of H.264/AVC video coding standard, a reversible information hiding algorithm based on H.264/AVC is proposed. The histogram shifting-based reversible data biding algorithm is utilized, which is designed for image carder. The embedding zone is selected in the mid-high frequency of 4 × 4 blocks, which can ensure the visual quality of the marked videos. The hidden information can be extracted accurately at the decoder. Furthermore, the original video can be recovered without any distortion. Experimental results show that the proposed algorithm has little impact on the video quality and bit-rate.