Exposing Double MPEG Compression Based on First Digit Features
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摘要: 视频双重压缩检测是检测视频篡改的有效方法，可用于鉴定视频的真实性与可靠性。该文针对离散余弦变换交流系数首位数字的概率分布与对数定律的拟合关系，选取了一种12维的首位数字特征，并采用支持向量机进行双重MPEG压缩的检测。对比实验证明该算法具有较高的准确率和效率。Abstract: Video forgeries can be effectively detected by discriminating double MPEG compression, in order to authenticate the truism and reliability of digital videos. Through delving into the fitting results of the first digit distribution of Alternating Current (AC) coefficients with logarithmic law, a double MPEG compression detection algorithm is proposed by extracting a 12-D first digit feature and employing Support Vector Machine (SVM). Experiments show that this algorithm has high accuracy and efficiency.
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