摘要
通过分析发现了视频帧问中频能量关系对于光度失真和空间同步失真的近似不变性.基于这种近似不变性,提出了一种可以根据人类的视觉系统特性,自适应地调整嵌入强度的鲁棒视频水印算法.实验表明,该算法可以有效抵抗光度失真、空间同步失真及其组合失真.
The approximate invariance of the middle frequencies energy relationship between video adjacent frames under photometric distortion and spatial desynchronization is discovered by analysis, Based on this approximate invariance, a new robust video watermarking scheme is proposed, It can adjust embedding strength adaptively according to human visual system features, Experimental results show that the proposed scheme is resilient to photometric distortion, spatial desynchronization and combined distortion effectively.
出处
《软件学报》
EI
CSCD
北大核心
2007年第11期2863-2870,共8页
Journal of Software
基金
No.20060101Z3006(国家高技术研究发展计划(863))
No.2006BAH02A10(国家科技支撑计划课题)~~
关键词
近似不变性
自适应视频水印
鲁棒
光度失真
空间同步失真
几何失真
approximate invariance
adaptive video watermarking
robust
photometric distortion
spatial desynchronization
geometric distortion
