Detection of quantization index modulation steganography in G.723.1 bit stream based on quantization index sequence analysis - 源码 - 源码 - 免费下载

Detection of quantization index modulation steganography in G.723.1 bit stream based on quantization index sequence analysis

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资源说明：This paper presents a method to detect the quantization index modulation(QIM) steganography in G.723.1 bit stream.We show that the distribution of each quantization index(codeword) in the quantization index sequence has unbalanced and correlated characteristics.We present the designs of statistical models to extract the quantitative feature vectors of these characteristics.Combining the extracted vectors with the support vector machine,we build the classifier for detecting the QIM steganography

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