A Study of Digital Audio Watermarking Schemes in the Wavelet Domain
Language: English
Published by ¿¿¿¿¿¿¿ Dez 2016, 2016
- Softcover
- New
Seller: Wegmann1855, Zwiesel, GermanyWegmann1855
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Neuware -This book introduces two DWT-based audio watermarking schemes.Unlike the traditional entropy, we use the normalized energy instead of the probability. Thus, we redefined the entropy as an energy-proportion function that maps the low-frequency coefficients of DWT into a positive real value. Based on the invariant features and the properties of the energy-proportion function, the energy-proportion based scheme is then proposed.The second method presents an optimization-based group-amplitude quantization scheme for audio watermarking. Generally, the performance of a watermarking scheme is measured in terms of signal-to-noise ratio (SNR) and bit error rate (BER).The SNR and BER are used to measure the quality and the robustness of a watermarked audio. However, there is a trade-off between them which is still a challenge in the field of the watermarking. To overcome this problem, we propose to select these coefficients based on minimizing a wavelet-based functional. Finally, we obtained an important formula for audio watermarking by using Lagrange Principle.…
Seller Inventory # 9783639829242
- Title
- A Study of Digital Audio Watermarking Schemes in the Wavelet Domain
- Author
- Shuo-Tsung Chen
- Publisher
- ¿¿¿¿¿¿¿ Dez 2016
- Publication year
- 2016
- Condition
- Neu
- Binding
- Taschenbuch
- Language
- English
- ISBN 10
- 3639829247
- ISBN 13
- 9783639829242
- Item weight
- 137 grams
- Dimensions
- 220x150x6 mm
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About the Author
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