A Robust Video Watermarking Algorithm in H.264 Compressed Domain
[1]SHEN Jin-yuan,HU Qing-yun,LIU Run-jie,et al.A Robust Video Watermarking Algorithm in H.264 Compressed Domain[J].Journal of Zhengzhou University (Engineering Science),2013,34(05):63-67.[doi:10.3969/j.issn.1671-6833.2013.05.014]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
34
Number of periods:
2013 05
Page number:
63-67
Column:
Public date:
2013-09-10
- Title:
- A Robust Video Watermarking Algorithm in H.264 Compressed Domain
- Keywords:
- H.264; video watermarking; quantized coefficient; blind detection
- CLC:
- TN919.81
- Abstract:
- A robust video watermarking algorithm in H.264 compressed-domain is proposed based on the newcharacteristics of H.264 coding standard. The 4 x4 blocks which have more nonzero quantized coefficients in4 macroblocks are chosen as embedding locations based on their texture complexity.To overcome the short-coming of the bit-rate increase in the existing algorithm,probability matrix is determined according to distribu-tion characteristics of DCT coefficients under the different intrapredicted models. The watermark is embeddedinto the quantized DCT coefficients of the luma components in I frames by changing the odevity of the numberof the nonzero quantized coefficients. The simulation results show that the proposed algorithm has little impacton the bit-rate of video, good invisibility and robustness. It can also increase watermarking embedding capaci-ty and meet the requirements of real-time blind detection.
- References:
- -
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Last Update:
1900-01-01