摘要
根据MPEG压缩视频的原理,提出了一种基于MPEG压缩域面向DCT变换的视频数字水印算法,并详细叙述了将水印信息经m序列调制后嵌入到IVOP帧的色度DCT变换的直流系数中的视频数字水印算法设计和实现的过程。实验证明,该视频数字水印算法在不降低视频质量的基础上,能够抵抗多种干扰和攻击,具有良好的稳定性和鲁棒性,并验证了以上分析。
According to the principle of MPEG video compression,this paper brings forward a video digital watermarking algorithm based on MPEG domain oriented to DCT transformation,and goes into particulars the process of the design and realization of the algorithm which embeds the watermarking infor-mation modulated by m sequence into the direct current coefficient of the DCT transformation of frame's chroma.Experiment verifies that this algorithm,depending on the foundation of not reducing the quality of video,can resist multiple disturbance and attack,and have good stability and robust.
出处
《浙江科技学院学报》
CAS
2004年第3期174-179,共6页
Journal of Zhejiang University of Science and Technology
基金
浙江省自然科学基金资助项目(M603178)
关键词
MPEG
压缩域
视频数字水印
直流系数
DCT变换
MPEG compression
DCT transformation
direct current coefficients
video watermark-ing
