A high-rate data hiding technique for audio signals based on IntMDCT quantizationReportar como inadecuado

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1 GIPSA-CICS - CICS GIPSA-DIS - Département Images et Signal 2 GIPSA-MAGIC - MAGIC GIPSA-DPC - Département Parole et Cognition

Abstract : Data hiding consists in hiding-embedding binary information within a signal in an imperceptible way. In this study we pro- pose a high-rate data hiding technique suitable for uncompressed audio signals PCM as used in Audio-CD and .wav format. This technique is appropriate for non-securitary applications, such as enriched-content applications, that require a large bitrate but no particular robustness to attacks. The proposed system is based on a quantization technique, the Quantization Index Modulation QIM applied on the Integer Modified Discrete Cosine Transform Int- MDCT coefficients of the signal and guided by a PsychoAcoustic Model PAM. This technique enables embedding bitrates up to 300 kbps per channel, outperforming a previous version based on regular MDCT.

keyword : Watermarking data hiding intMDCT

Autor: Jonathan Pinel - Laurent Girin -

Fuente: https://hal.archives-ouvertes.fr/


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