基于帧内预测模式的H.264/AVC视频信息嵌入算法

Information Hiding Algorithm for H.264/AVC Based on Intra Prediction Mode

提出了一种基于帧内预测模式的H.264/AVC视频信息嵌入算法。在秘密信息进行嵌入时,根据人类视觉特性的掩蔽效应,筛选出I帧中纹理密集区域的4×4亮度块,确定为嵌入块。通过秘密信息调制4×4亮度块的预测模式最低有效位,完成秘密信息的嵌入。通过对算法进行仿真实验,证明本算法计算量小,能够实时处理。对视频载体影响小,有一定的嵌入容量,能够保证秘密信息的有效传输。

An information hiding algorithm for H.264/AVC based on intra prediction mode is proposed.In the process of secret information embedding,the algorithm filters out the 4× 4 luminance block,to determine the embedded block.The secret information modulate the prediction modes of 4 × 4 luminance block in prediction modes to achieve the purpose of hiding the secret information.The experimental simulation results show that the algorithm has simple operation,small amount of computation,so it has the ability to hide secret information with real-time processing.After hiding the secret information,the quality of the video is not af- fected.The algorithm has a big embedding capacity,and can ensure the effective transmission of hidden in- formation.