Turbo-Based DNW Algorithm for Compressed Video in VLC Domain

In order to improve the robustness of the differential number watermarking (DNW) algorithm proposed by us before, we proposed turbo-based DNW (TDNW) in which the turbo code was employed in the DNW algorithm. The turbo code was used to encode the message prior to watermark embedding and decode the wa...

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Bibliographic Details
Published in:Wuhan University journal of natural sciences 2005, Vol.10 (1), p.297-302
Main Authors: Ling, He-Fei, Lu, Zheng-Ding, Zou, Fu-Hao
Format: Article
Language:English
Subjects:
Algorithms
Computer applications
DNW算法
Embedding
Turbo codes
Video compression
VLC域
Watermarking
图像识别
实时视频水印
水印图像
水印模式
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Summary:In order to improve the robustness of the differential number watermarking (DNW) algorithm proposed by us before, we proposed turbo-based DNW (TDNW) in which the turbo code was employed in the DNW algorithm. The turbo code was used to encode the message prior to watermark embedding and decode the watermark posterior to watermark detection. From the analysis and experiments, the following conclusion could be drawn. The T-DNW algorithm has little higher computational complexity than DNW. And both algorithms have the same performance ;,n terms of watermark visual quality impact. Furthermore, the TDNW algorithm is much more robust against some common attack than DNW. Ahhough the TDNW algorithm sacrifices a half payload, we think the achievements are encouraging.
ISSN:1007-1202
1993-4998
DOI:10.1007/bf02828673