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A steganography algorithm based on ±1 DCT coefficients for H.264/AVC

被引：1
|
作者：
Nan, Xiu [1 ]
Pei, Zhou [1 ]
Li, Zhi-Tang [2 ]
机构：
[1] Huazhong Univ Sci & Technol, Dept Comp Sci, Wuhan, Peoples R China
[2] Huazhong Univ Sci & Technol, Network & Comp Ctr, Wuhan, Peoples R China
来源：
2015 NINTH INTERNATIONAL CONFERENCE ON FRONTIER OF COMPUTER SCIENCE AND TECHNOLOGY FCST 2015 | 2015年
关键词：
H.264/AVC; steganography; DCT; matrix encoding;
D O I：
10.1109/FCST.2015.65
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
This paper proposes the steganography algorithm based on 1 coefficients after discrete cosine transform (+/- 1 DCT) for H.264/AVC. The +/- 1 DCT algorithm embeds information bits differently on the number of +/- 1 coefficients after DCT and quantization process. When the number of +/- 1 coefficients is more than or equal to 3, this algorithm embeds information bits by matrix encoding. The simulation results show that the degradation of video quality is negligible and the same overall bit-stream length is maintained. And the comparison with other algorithms shows the superiority of the +/- 1 DCT algorithm.
引用
收藏
页码：258 / 262
页数：5
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