摘要
提出一种基于高效视频编码(HEVC)的视频内容认证算法.根据图像纹理特征产生特征码,将特征码用于修改帧间8×8编码单元的分割模式、帧间预测模式和运动向量,并保留最佳的编码单元分割模式及相应的预测模式和运动向量.实验结果表明:该算法对视频质量影响很小,嵌入水印后码率的变化也很小;同时,该算法具有较好的脆弱性,可以用于视频认证.
In this paper,a video content authentication scheme based on high efficiency video coding（HEVC）has been proposed,the scheme used the feature codes generated from image texture to modify partition modes,inter-prediction modes and the value of motion vector of inter-frame 8×8coding unit,and reserve the optimal coding unit splitting mode with corresponding prediction mode and motion vector.The experimental results show that our proposed algorithm has very small effect on video quality and bitrate.And our scheme can be used for authenticating video content owing to its good fragility.
出处
《华侨大学学报（自然科学版）》
北大核心
2017年第5期721-726,共6页
Journal of Huaqiao University(Natural Science)
基金
福建省自然科学基金资助项目(2014J01242
2016J01306)
关键词
高效视频编码
内容认证
运动向量
帧间预测模式
high efficiency video coding
content authentication
motion vector
inter - frame prediction mode
