蒋刚毅1,,,
郁梅1,
骆挺1, 2
1.宁波大学信息科学与工程学院 宁波 315211
2.宁波大学科学技术学院 宁波 315211
基金项目:国家自然科学基金(61671258, 61871247, 61931022, 61971247)
详细信息
作者简介:高巍:男,1969年生,博士生,讲师,研究方向为3D视频信息隐藏
蒋刚毅:男,1964年生,博士,教授,博士生导师,研究方向为多媒体信号处理与通信、3D视频系统编码与传输、图像与视频质量评价、信息隐藏
郁梅:女,1968年生,博士,教授,博士生导师,研究方向为多媒体信号处理与通信研究
骆挺:男,1980年生,博士,副教授,研究方向为多媒体信息隐藏
通讯作者:蒋刚毅 jianggangyi@126.com
中图分类号:TN911.73; TP391计量
文章访问数:1153
HTML全文浏览量:412
PDF下载量:44
被引次数:0
出版历程
收稿日期:2019-05-16
修回日期:2020-03-20
网络出版日期:2020-07-01
刊出日期:2020-09-27
A Steganography Algorithm in Encrypted Stereoscopic Video Based on Entropy Coding
Wei GAO1, 2,Gangyi JIANG1,,,
Mei YU1,
Ting LUO1, 2
1. Faculty of Information Sciences and Engineering, Ningbo University, Ningbo 315211, China
2. College of Science and Technology, Ningbo University, Ningbo 315211, China
Funds:The National Natural Science Foundation of China (61671258, 61871247, 61931022, 61971247)
摘要
摘要:针对立体视频的安全性,该文提出一种基于熵编码的立体视频加密与信息隐藏算法。首先,结合立体视频编码结构,分析误差漂移的物理机制,并根据立体视觉掩蔽效应,确定左右视点的加密帧和隐秘信息待嵌入帧。其次,在基于上下文自适应二进制算术编码(CABAC)的熵编码中,通过等长码字替换技术,实现立体视频的加密和信息隐藏。实验结果表明,视频码流经加密与信息隐藏之后格式兼容、比特率不变,视频感知质量无明显下降,在计算复杂度和码率增加率上有显著优势。
关键词:立体视频编码/
分层次B帧预测/
隐秘域信息隐藏/
熵编码
Abstract:For security of stereoscopic video, a video encryption and information hiding algorithm based on entropy coding is proposed. Firstly, with the analysis of Multi-view Video Coding (MVC), the physical mechanism of error drift is investigated. By applying the stereoscopic masking effect, the frames to be encrypted and the frames to be embedded are determined. Secondly, by using a Context-based Adaptive Binary Arithmetic Coding (CABAC) bin-string substitution technique, the encryption and data hiding of stereoscopic video are implemented. Experimental implementation reveals that the video stream has the format compatibility and the bit-rate remains unchanged after encryption and data hiding. The video quality degradation is negligible. The algorithm has significant advantages in computational complexity and rate increase.
Key words:Stereoscopic video/
Hierarchical B Picture (HBP)/
Data hiding in encrypted domain/
Entropy coding
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