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- W3197555744 abstract "Collusion attacks are challenging to tackle in audio fingerprinting. A new direction to resist collusion attacks is to degrade the perceptual quality of the colluded files so that these files cannot be reused. The existing method in this direction has low embedding capacity and limited anti-collusion performance when the number of colluders is odd. In this letter, we present an anti-collusion mechanism that has a higher embedding capacity and can significantly degrade the perceptual quality of the colluded files regardless of the number of colluders. In the proposed mechanism, we first segment the host audio file into frames and perform the discrete cosine transform (DCT) on each frame. Then multiple fingerprint bits are embedded into each frame by reversing the DCT coefficients of the corresponding frequency band. As a result, when a collusion attack occurs, our proposed embedding mechanism can introduce perceptibly annoying differences between frames in the colluded file, which leads to severe perceptual quality degradation. Theoretical analysis and experimental results validate the superiority of the proposed anti-collusion mechanism." @default.
- W3197555744 created "2021-09-13" @default.
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- W3197555744 date "2021-01-01" @default.
- W3197555744 modified "2023-10-18" @default.
- W3197555744 title "Segmental DCT Coefficient Reversal Based Anti-Collusion Audio Fingerprinting Mechanism" @default.
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- W3197555744 doi "https://doi.org/10.1109/lsp.2021.3108903" @default.
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