Title :
Data Hiding in H.264/AVC Streams with Limited Intra-Frame Distortion Drift
Author :
Ma, Xiaojing ; Li, Zhitang ; Lv, Jun ; Wang, Weidong
Author_Institution :
Dept. of Comput. Sci. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A novel data-hiding scheme with limited intra-frame distortion drift is proposed to hide information in H.264/AVC digital video. The secret message is embedded into the quantized DCT (discrete cosine transform) coefficients of 4×4 residual luma blocks in I frames. By analysis of the relationship between the DCT coefficients and the distortion of the pixel values used in intra-frame prediction, we choose suitable DCT coefficients for embedding and compensate the intra-frame distortion by adjusting another DCT coefficient. The experimental results show that our scheme can effectively control intra-frame distortion drift and get higher visual quality. Besides, the mechanism to choose DCT coefficients can be combined with other data hiding algorithms in H.264/AVC to control intraframe distortion drift.
Keywords :
data encapsulation; discrete cosine transforms; video coding; video streaming; H.264/AVC digital video; data hiding scheme; discrete cosine transform coefficients; intraframe distortion drift; quantized DCT coefficient; visual quality; Automatic voltage control; Computer science; Copyright protection; Data encapsulation; Data mining; Discrete cosine transforms; Robustness; Video compression; Video sharing; Watermarking;
Conference_Titel :
Computer Network and Multimedia Technology, 2009. CNMT 2009. International Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-5272-9
DOI :
10.1109/CNMT.2009.5374766
