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Abstract
This thesis apply steganography algorithm in a video. In earlier steganography method spatial or transformed domain is used for data hiding. But in future method we are using compressed video to hide the secrete message; we use motion vectors to encode and reconstruct both the forward predictive (P)-frame and bidirectional (B)-frames in compress video. Motion vectors are calculate by means of macro block guess mistake, which is different from the approaches based on the motion vector attributes such as the magnitude and phase viewpoint, etc. A greedy adaptive threshold is look for for each frame to achieve robustness while maintain a low prediction error level. Secrete information bits are replace with the least significant bits of motion vectors. This algorithm was experienced on special types of videos. The future method is establishing to perform well and is compare to a motion vector attribute-based method from the writing.
Index Terms—Data hiding, Motion vectors, Motion Picture Expert Group (MPEG), Steganography##plugins.themes.academic_pro.article.details##
References
2. F. A. P. Petitcolas, R. J. Anderson, and M. G. Kuhn, ―Information hiding A survey,Proc. IEEE, vol. 87, no. 7, pp. 1062–1078, Jul. 1999.
3. J. Zhang, J. Li, and L. Zhang, Video watermark technique in motion vector,inProc. XIV Symp. Computer Graphics and Image Processing, Oct. 2001, pp. 179–182.
4. C. Xu, X. Ping, and T. Zhang, Steganography in compressed video stream, in Proc. Int. Conf. Innovative Computing, Information and Control (ICICIC’06), 2006, vol. II, pp. 803–806.
5. P.Wang, Z. Zheng, and J. Ying, A novel video watermark technique in motion vectors, in Int. Conf. Audio, Language and Image Processing (ICALIP), Jul. 2008, pp. 1555–1559.
6. S. K. Kapotas, E. E. Varsaki, and A. N. Skodras, ―Data hiding in H.264 encoded video sequences, in IEEE 9th Workshop on Multimedia Signal Processing (MMSP07), Oct. 2007, pp. 373–376.
7. D.-Y. Fang and L.-W.Chang, Data hiding for digital video with phase of motionvector, in Proc. Int. Symp. Circuits and Systems (ISCAS), 2006, pp. 1422–1425.
8. X. He and Z. Luo, A novel Steganographic algorithm based on the motion vector phase,‖ in Proc. Int. Conf. Comp. Sc. and Software Eng., 2008, pp. 822–825
9. Generic Coding of Moving Pictures and Associated Audio Information: Video, 2 Edition, SO/IEC13818-2, 2000.
10. B. Chen and G. W. Wornell, Quantization index modulation for digital watermarking a and information embedding of multimedia,‖ J. VLSI Signal Process., vol. 27, pp. 7–33,2001.