A Watermarking Method Retrievable from MPEG Compressed Stream(Regular Section)
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概要
- 論文の詳細を見る
A digital watermarking method for moving pictures is proposed in which a watermark can be retrieved from an MPEG bitstream directly. In the proposed method, the watermark is embedded in multiple frames of an original moving picture, and it is detected statistically using multiple frames. Embedding is based on the modification of DCT coefficients that are in the chosen pixel blocks in each video frame. These pixel blocks are chosen differently per video frame in order to avoid regularity and periodicity. The features of the proposed method are that it does not need the original picture nor MPEG decoding processing. The proposed method is evaluated through various attacks including MPEG encoding and StirMark tools. It is shown that the watermark can survive MPEG encoding and frequency domain attacks. The reliability of watermark retrieval is also discussed in terms of statistical test.
- 社団法人電子情報通信学会の論文
- 2002-11-01
著者
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和田 政裕
Faculty Of Pharmaceutical Sciences Josai University
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Takishima Yasuhiro
Kddi R&d Lab. Inc. Fujimino‐shi Jpn
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Wada M
The Faculty Of Engineering Tokushima University
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Wada Masahiro
Kddi R&d Laboratories Inc.
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SAKAZAWA Shigeyuki
the Visual Communications Laboratory, KDDI R&D Laboratories, Inc.
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TAKISHIMA Yasuhiro
the Visual Communications Laboratory, KDDI R&D Laboratories, Inc.
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WADA Masahiro
the Visual Communications Laboratory, KDDI R&D Laboratories, Inc.
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Sakazawa Shigeyuki
Kddi R&d Labs. Inc. Fujimino‐shi Jpn
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