Name
Abstract | ||
|---|---|---|
This paper presents a patchwork-based watermarking method for stereo audio signals, which exploits the similarity of the two sound channels of stereo signals. Given a segment of stereo signal, we first compute the discrete Fourier transforms (DFTs) of the two sound channels, which yields two sets of DFT coefficients. The DFT coefficients corresponding to certain frequency range are divided into multiple subsegment pairs and a criterion is proposed to select those suitable for watermark embedding. Then a watermark is embedded into the selected subsegment pairs by modifying their DFT coefficients. The exact way of modification is determined by a secret key, the watermark to be embedded, and the DFT coefficients themselves. In the decoding process, the subsegment pairs containing watermarks are identified by another criterion. Then the secret key is used to extract the watermark from the watermarked subsegments. Compared to the existing patchwork methods for audio watermarking, the proposed method does not require knowledge of which segments of the watermarked audio signal contain watermarks and is more robust to conventional attacks. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1007/s11042-013-1454-4 | Multimedia Tools and Applications |
Keywords | Field | DocType |
Audio watermarking,Patchwork,Stereo audio signal,Discrete Fourier transform | Audio signal,Computer vision,Digital watermarking,Pattern recognition,Computer science,Stereophonic sound,Communication channel,Watermark,Artificial intelligence,Decoding methods,Discrete Fourier transform,Watermark embedding | Journal |
Volume | Issue | ISSN |
72 | 2 | 1380-7501 |
Citations | PageRank | References |
2 | 0.38 | 39 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Iynkaran Natgunanathan | 1 | 152 | 10.22 |
| Yong Xiang | 2 | 1137 | 93.92 |
| Yue Rong | 3 | 1342 | 85.71 |
| Dezhong Peng | 4 | 285 | 27.92 |