Lossless Data Hiding Scheme Based on VQ Index Coding
Lossless Data Hiding Scheme Based on VQ Index Coding作者机构:the Department of Information ManagementChaoyang University of Technology the Department of ComputerPou Chen Group
出 版 物:《Journal of Electronic Science and Technology》 (电子科技学刊(英文版))
年 卷 期:2013年第11卷第1期
页 面:27-32页
学科分类:0839[工学-网络空间安全] 08[工学] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术(可授工学、理学学位)]
基 金:supported by the National Science Council Taiwan under Grant No.NSC 99-2221-E-324-040-MY2
主 题:Bit rate lossless data hiding payload vector quantization vector quantization index table.
摘 要:Lossless data hiding can restore the original status of cover media after embedded secret data are extracted. In 2010, Wang et al. proposed a lossless data hiding scheme which hides secret data in vector quantization (VQ) indices, but the encoding strategies adopted by their scheme expand the final codestream. This paper designs four embedding and encoding strategies to improve Wang et aL's scheme. The experiment result of the proposed scheme compared with that of the Wang et aL's scheme reduces the bit rates of the final codestream by 4.6% and raises the payload by 1.09% on average.