Robust Detection Algorithm for Spread Spectrum Audio Watermarking
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概要
- 論文の詳細を見る
In this letter we propose a robust detection algorithm for audio watermarking for copyright protection. The watermark is embedded in the time domain of an audio signal by the normally used spread spectrum technique. The scheme of detection is an improvement of the conventional correlation detector. A high-pass filter is applied along with the linear prediction error filter for whitening the audio signal and an adaptive threshold is chosen for decision comparing. Experimental results show that our detection algorithm outperforms the conventional one not only because it improves the robustness to normal attacks but also because it can provide the robustness to time-invariant pitch-scale modification.
- （社）電子情報通信学会の論文
- 2008-11-01
著者
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FANG Xiangzhong
Institute of Communication and Image Processing, Shanghai Jiaotong University
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Fang Xiangzhong
Institute Of Image Communication And Information Processing Department Of Electronic Engineering Sha
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LI Lili
Institute of Image Communication and Information Processing, Department of Electronic Engineering, S
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Li Lili
Institute Of Homogeneous Catalysis College Of Chemistry Sichuan University
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Li Lili
Institute Of Image Communication And Information Processing Department Of Electronic Engineering Sha
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