基于帧间共谋的视频隐写分析  

Video steganalysis scheme based on inter-frame collusion

作　　者：刘镔[1] 刘粉林[1] 杨春芳[1] 

机构地区：[1]解放军信息工程大学信息工程学院,河南郑州450002

出　　处：《通信学报》2009年第4期41-49,59,共10页Journal on Communications

基　　金：国家高技术研究发展计划("863"计划)基金资助项目(2006AA01Z409);河南省基础与前沿技术研究计划资助项目(082300410150);解放军信息工程大学博士生学位论文创新基金资助项目(4142D32G);郑州市科技计划资助项目(083SGYG21125)~~

摘　　要：基于视频序列的时域特性,提出一种应用帧间共谋策略的视频隐写分析算法。分析了视频序列中所含局部运动对隐写分析检测精度的干扰,将秘密信息和局部运动建模为双模噪声,据此提出基于视频帧间分块相关度的特征提取策略。隐写分析算法依据提取的特征应用GRNN分类器进行视频帧的分类,以识别含秘密信息的可疑视频帧,在一定程度上降低了局部运动的影响。实验结果表明该算法可实际应用于视频隐写分析。An inter-frame collusion based video steganalysis scheme （ICS） was proposed by utilizing the temporal correlation among video frames to find out whether secret data was hidden in the frames or not. Motions existing in video se- quence decreased the detection accuracy of steganalysis algorithms, which were taken into account in ICS steganalysis scheme by modeling motions and messages in video frame as a bimodal noise. Suspicious video frames were recognized by decision module employing GRNN classifier with features extracted by the inter-frame correlation strategy. Experimental results show the satisfying performance of the proposed scheme.

关 键 词：视频处理 信息隐藏 隐写分析 共谋 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]