Data Hiding in H.264/AVC Streams with Limited Intra-Frame Distortion Drift
Data Hiding in H.264/AVC Streams with Limited Intra-Frame Distortion Drift
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DOI：
10.1109/cnmt.2009.5374766
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发表时间：
2009-12
期刊：
影响因子：
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通讯作者：
Xiaojing Ma;Zhitang Li;Jun Lv;Weidong Wang
中科院分区：
文献类型：
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作者：
Xiaojing Ma;Zhitang Li;Jun Lv;Weidong Wang
提出了一种具有有限帧内失真漂移的新颖数据隐藏方案来隐藏 H.264/AVC 数字视频中的信息。秘密消息被嵌入到 I 帧中 4×4 残余亮度块的量化 DCT（离散余弦变换）系数中。通过分析DCT系数与帧内预测所使用的像素值失真之间的关系，选择合适的DCT系数进行嵌入，并通过调整另一个DCT系数来补偿帧内失真。实验结果表明，我们的方案可以有效控制帧内畸变漂移，获得较高的视觉质量。此外，选择DCT系数的机制可以与H.264/AVC中的其他数据隐藏算法相结合，以控制帧内失真漂移。关键词数据隐藏； H.264/AVC；帧内失真漂移
A novel data-hiding scheme with limited intra-frame distortion drift is proposed to hide information in H.264/AVC digital video. The secret message is embedded into the quantized DCT (Discrete Cosine Transform) coefficients of 4×4 residual luma blocks in I frames. By analysis of the relationship between the DCT coefficients and the distortion of the pixel values used in intra-frame prediction, we choose suitable DCT coefficients for embedding and compensate the intra-frame distortion by adjusting another DCT coefficient. The experimental results show that our scheme can effectively control intra-frame distortion drift and get higher visual quality. Besides, the mechanism to choose DCT coefficients can be combined with other data hiding algorithms in H.264/AVC to control intraframe distortion drift. KeywordsData hiding; H.264/AVC;intra-frame distortion drift