A method of sound quality improvement for capacity increasable multilayer type audio watermarking
| Project/Area Number |
23500224
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Perception information processing/Intelligent robotics
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| Research Institution | Kinki University (2012-2013)
Osaka Prefecture University (2011) |
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Principal Investigator |
OGIHARA Akio 近畿大学, 工学部, 教授 (60244654)
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| Co-Investigator(Kenkyū-buntansha) |
MURATA Harumi 中京大学, 工学部, 助教 (10707186)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 音楽電子透かし / 情報ハイディング / 著作権・コンテンツ保護 |
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| Research Abstract |
In our multilayer type audio watermarking method, we increase the capacity of embedding by introducing multi-layered embedding process of watermark information. However, there is the problem that sound quality degradation is likely to be perceived according to multi-layered embedding process. In this research, we reduce the sound quality degradation by introducing "optimized window function" and "sound quality improvement technique using error correcting code" into the multilayer type audio watermarking method. As a consequence, we realized the balance of embedding capacity and sound quality.
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Report
(4 results)
Research Products
(58 results)
