项目名称: 利用视频压缩特性的隐写关键技术研究
项目编号: No.61303259
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 自动化技术、计算机技术
项目作者: 曹纭
作者单位: 中国科学院信息工程研究所
项目金额: 23万元
中文摘要: 近年来,随着新一代高性能网络技术的发展和视频处理技术的不断优化,以压缩视频为载体的网络通信方式越来越具有普遍性与频发性,这为视频隐写的发展创造了良好的外部环境。相较于图像隐写,视频隐写暂时处于相对落后的位置,但是由于其在嵌入容量与灵活性方面具有明显优势,所表现出来的发展前景使得相关研究工作具有重要意义。本项目针对当前视频隐写研究中面临的编码标准多样,嵌入区域评价标准缺失,嵌入方式不够优化等问题,结合压缩编码的过程特点展开研究,一方面通过制定更加合理的嵌入域/嵌入位置选择策略、设计优化的嵌入方式以及应用优化的隐写编码等技术,提升视频隐写的不可检测性;另一方面为了及时对正向隐写方法的设计指标与性能进行评估和验证,通过自适应检测区间划分、基于校准的宏观特征恢复以及信息融合相关技术,提高视频隐写分析的针对性与检测指标的可靠性。
中文关键词: 隐写;视频;压缩编码;隐写分析;信息隐藏
英文摘要: With recent improvements in new generation networks and advanced video coding techniques, the communications via compressed video objects are becoming more and more common and frequent, which creates a favorable external environment for the development of video steganography. Compared with the image steganography, the video steganography is relatively backward. However, because of its obvious advantages in the embedding capacity and flexibility, the video steganographic techniques have shown a great application prospect and important significance in research. For video content, the diversity in compression standards and carrier types together with the lack of evaluation criteria for embedding domain selection make relevant steganographic research difficult. Addressing the limitations and shortcomings of current research, this project takes the characteristics of the video compression into consideration to improve the steganographic designing performance. Specifically, optimized selection strategies of embedding domain and positions are to be tested. Moreover, the advanced stego-coding techniques are to be used to improve embedding efficiency. On the other hand, to timely verify the design indexes and parameters, the techniques of adaptive detection interval division, calibration-based macro-characteristics recov
英文关键词: Steganography;Video;Compression;Steganalysis;Information hiding