基于线性码的隐写编码研究进展

摘要

Steganographic coding technique is an advanced research hotspot in the field of multimeida steganog-raphy which can effectively improve the security and robustness of steganography. Recent advances in stegano-graphic coding based on linear codes are reviewed in this paper. Regarding the challenges posed by the rapid de-velopment of steganalysis ,the key steganographic coding methodology——— matrix embedding is concluded as three developmental stages:aiming at reducing the modification,aiming at selecting the modification area,and aiming at minimizing the distortion. Then,with the unceasing expansion of application environment for steganog-raphy,it is indicated that matrix embedding in multicast communications and that in conjunction with linear cod-ing for enhancing the robustness are the new trends of steganographic coding technique.%隐写编码技术是当前数字媒体隐写领域的研究热点，其能够有效提高隐写的安全性和鲁棒性。文中回顾了基于线性码的隐写编码技术的最新进展，根据隐写分析技术的快速发展对高安全性隐写术提出的挑战，将矩阵嵌入这一关键隐写编码方法的发展归纳为3个阶段：面向修改量降低、面向修改区域可选以及面向最小化隐写失真。同时，针对当前隐写术应用场景的不断拓展，指出了多播通信下的矩阵嵌入以及结合线性编码技术衍生的具备一定鲁棒性的矩阵嵌入是当前隐写编码技术的发展趋势。