基于移动平台的视频信息隐藏关键技术研究

项目名称： 基于移动平台的视频信息隐藏关键技术研究

项目编号： No.U1536121

项目类型： 联合基金项目

立项/批准年度： 2016

项目学科： 管理科学

项目作者： 牛少彰

作者单位： 北京邮电大学

项目金额： 66万元

中文摘要： 随着移动互联网的蓬勃发展，移动视频正呈爆炸式增长，研究适应于移动平台的视频信息隐藏算法具有重要现实意义。项目主要研究内容为：1. 基于视觉感知的视频信息隐藏机理研究。将视觉感知模型引入移动视频信息隐藏机制，利用视觉感知模型计算视觉感知强度，实现最大限度隐藏。2. 闭环结构的信息隐藏算法结构研究。为避免信息隐藏修改造成的误差扩散，通过将视频信息隐藏与视频编码紧耦合，将信息隐藏后的数据作为后续帧的参考数据有效避免误差扩散问题，形成闭环结构的视频信息隐藏算法。3. 适应于移动平台的优化算法研究。结合视频运动特征探索研究运动估计的快速优化算法，利用视频数据时间空间的相关性，通过减少外存访问降低移动平台的功耗。4. 移动视频应用安全研究。基于移动APP实现移动视频信息隐藏的安全应用，进一步增强伪装性。课题针对移动视频编码器和移动平台的结构特点，结合移动应用需求，实现基于移动视频隐藏信息的安全传输。

中文关键词： 视频信息隐藏；隐藏容量；隐藏算法优化；移动视频；视觉质量

英文摘要： As mobile Internet gains tremendous development in recently years, the number of mobile video shows explosive growth trends. Studying on the information hiding algorithms suitable for the mobile platform plays an important role in modern practical research. The main research contents are as follows: 1. Study on the mechanism of video information hiding based on visual perception. To achieve maximum information hidden, the visual perception model was introduced into the mobile video information hiding mechanism and used to calculate the intensity of visual perception. 2. Study on closed-loop structure of information hiding algorithm. In order to avoid the error diffusion caused by information modification, the video information hiding was tightly coupled with the video coding, and the data processed after information hiding operation was adopted by subsequent frames as reference data, the mechanism is effective to prevent the spread of error diffusion problem and constitute a video information hiding algorithm with closed-loop structure. 3. Study on the optimization algorithms adapted to the mobile platform. The topic targets to explore fast optimization motion estimation algorithm integrated with the feature of video motion. Taking advantage of the correlation between time and space of video data, the algorithm reduces the power consumption of the mobile platform by reducing the external memory access. 4. Study on the mobile video applications security. The research further enhances the camouflage of steganography by realizing mobile video security applications of information hiding based on the mobile APP. The research investigates the structure characteristics of the mobile video encoder and the mobile platform. Combining with the mobile application requirements, the research aims to achieve safe transmission based on mobile video hidden information.

英文关键词： Video information hiding;Hiding capacity;Hiding algorithm optimization;Mobile video;Visual quality