動き検出を利用したMPEGエンコーダ向け動画用電子透かし

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概要

• 論文の詳細を見る

• Maintaining picture quality is an essential requirement for video watermarking, and this paper shows that watermarks are less perceptible when they are embedded where picture contents are moving. It also describes a new watermarking method that uses motion detection to preferentially allocate watermarks to macro-blocks containing motion. As well it presents the results of experimental evaluations which demonstrate that this method significantly reduces degradation in picture quality. Further it shows that, for the same picture quality after MPEG encoding and decoding, 30% more watermarks can be embedded than with the previous method. This new method would be most effective when implemented in MPEG encoders, which already have the necessary motion analysis functions; it can also be used in content-distribution systems.

• 社団法人映像情報メディア学会の論文
• 2004-02-01

著者

• TEZUKA Satoru

  Systems Development Laboratory, Hitachi Ltd.

• Taguchi Jun'ichi

  Systems Development Laboratory Hitachi Ltd.

• Echizen Isao

  Systems Development Laboratory Hitachi Ltd.

• Tezuka Satoru

  Systems Development Laboratory Hitachi Ltd.

• Nakano Kazunori

  Systems Development Laboratory Hitachi Ltd.

• YOSHIURA Hiroshi

  Faculty of Electro-Communications, The University of Electro-Communications

• Anzai Kousuke

  Systems Development Laboratory, Hitachi, Ltd.

• Anzai Kousuke

  Systems Development Laboratory Hitachi Ltd.

• Yoshiura H

  Faculty Of Electro-communication The University Of Electro-communications

• Yoshiura Hiroshi

  Faculty Of Electro-communications The University Of Electro-communications

• Echizen Isao

  Systems Development Laboratory, Hitachi, Ltd.

• Yoshiura Hiroshi

  Faculty of Electro-Communication, The University of Electro-Communications

関連論文

• Digitally Signed Document Sanitizing Scheme with Disclosure Condition Control(Application)(Cryptography and Information Security)
• Generalized Powering Functions and Their Application to Digital Signatures(Digital Signature, Cryptography and Information Security)
• Color Picture Watermarking Correlating Two Constituent Planes for Immunity to Random Geometric Distortion(Image Recognition, Computer Vision)
• Maintaining Picture Quality and Improving Robustness of Color Watermarking by Using Human Vision Models(Application Information Security)
• Use of Statistically Adaptive Accumulation to Improve Video Watermark Detection (特集:ユビキタス社会を支えるコンピュータセキュリティ技術)
• 動き検出を利用したMPEGエンコーダ向け動画用電子透かし
• Use of Statistically Adaptive Accumulation to Improve Video Watermark Detection

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