Robust and reversible audio watermarking technology
Project/Area Number |
24500128
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Media informatics/Database
|
Research Institution | Tokyo University of Information Sciences |
Principal Investigator |
|
Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
Keywords | 電子透かし / 著作権管理 / 価値向上 / 音質 / 可逆透かし / 音楽配信 / 知覚符号化 / リバーシブル情報ハイディング / 客観音質評価 / 攻撃耐性 / 整数MDCT / 振幅拡張 / スペクトル拡散 / 音響電子透かし / ステガノグラフィ / 評価基準 / 音響信号処理 / 可逆変換 / 情報通信工学 / 情報工学 / 画像,文章,音声等認識 / 先端的通信 / 著作権・コンテンツ保護 |
Outline of Final Research Achievements |
The present study proposes a novel reversible and robust technique for hiding data in audio. It is perfectly reversible for unmodified stego signals and is semi-reversible for perceptually coded stego signals. The present technology achieves both copyright management using robust payload and enrichment of the sound quality using reversible payload in transmitting digital music data. In addition, perceptually-coded watermarked audio can be recovered to the sound quality of perceptually-coded audio.
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Report
(4 results)
Research Products
(14 results)