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Audio watermarking is a hot research area in copyright protection of multimedia content. In this paper, a novel watermarking technique is proposed based on discrete wavelet transform and chirp signal. The special spectrum distribution characteristic of chirp signal is utilized to encode watermarking bit. Then we use radon transform to decode the embedding information. Experimental results show that...
Audio watermarking has attracted more attentions recently. In this paper, a novel audio watermarking based on statistical moment in wavelet domain. Firstly, we introduce the novel transformation called Point-to-Point Graph (PPG) into the sub-band signal after the wavelet decomposition. In order to increase the robustness, the three dimensional transformation is implemented and then the wavelet coefficients...
Audio steganalysis has attracted more attentions recently. Echo steganalysis is one of the most challenging research fields. In this paper, an effective steganalysis method based on statistical moments of peak frequency is proposed. Combined with power cepstrum, it statistically analyzes the peak frequency using short window extracting, and then calculates the eight high order center moments of peak...
Audio steganalysis has attracted more attentions recently. Echo steganalysis is one of the most challenging research fields. In this paper, an effective steganalysis method based on statistical moments of peak frequency is proposed. Combined with power cepstrum, it statistically analyzes the peak frequency using short window extracting, and then calculates the second order and third order center moments...
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