多通道运动矢量排序的可逆视频信息隐藏  

Reversible Video Information Hiding Based on Multi-pass Motion Vector Ordering

作　　者：孟逸飞 钮可[1,2] 梁钰承[1] 石林 张英男 Meng Yifei;Niu Ke;Liang Yucheng;Shi Lin;Zhang Yingnan(School of Cryptography Engineering,Engineering University of PAP,Xi'an 710016;Key Laboratory of Information Security of People's Armed Police(Engineering University of PAP),Xi'an 710016)

机构地区：[1]中国人民武装警察部队工程大学密码工程学院,西安710016 [2]武警部队信息安全重点实验室(中国人民武装警察部队工程大学),西安710016

出　　处：《信息安全研究》2024年第8期698-705,共8页Journal of Information Security Research

基　　金：国家自然科学基金项目(62202496,62272478);武警工程大学基础前沿创新项目(WJY202314,WJY202221)。

摘　　要：针对现有基于运动矢量排序的视频可逆信息隐藏算法无法根据视频帧视觉特性自适应调节嵌入容量且容量有限的问题,提出一种多通道矢量排序的可逆视频信息隐藏算法.该算法通过计算参考帧的纹理复杂度和运动复杂度情况决定后续帧是否嵌入信息,从而实现后续帧的自适应信息嵌入,算法同时对多通道像素值排序(multi-pass pixel value ordering, multi-pass PVO)技术进行改进,将其应用于视频信息隐藏,有效提升可逆隐藏算法嵌入容量.实验结果表明,相较于同类算法,PSNR和SSIM的变化值分别降低14.5%和8.5%,嵌入容量提升7.4%,在视觉质量和嵌入容量方面有显著提高.Aiming at the problem that existing reversible video information hiding algorithms based on motion vector ordering cannot adaptively adjust the embedding capacity according to the visual characteristics of video frames and have limited capacity,a multi-pass vector ordering reversible video information hiding algorithm is proposed.This algorithm decides whether to embed information in subsequent frames by assessing the texture and motion complexities of reference frames,thereby enabling adaptive information embedding in subsequent frames.The algorithm also enhances the multi-pass pixel value ordering(multi-pass PVO)technique and applies it to video information hiding,significantly enhancing the embedding capacity of reversible hiding algorithms.Experimental results demonstrate that,compared to similar algorithms,the variation values of PSNR and SSIM decreased by 14.5%and 8.5%respectively,and the embedding capacity increased by 7.4%.This represents significant improvements in both visual quality and embedding capacity.

关 键 词：视频信息隐藏 可逆信息隐藏 运动矢量 H.264编码标准 像素值排序 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]