Exposing video forgeries by detecting MPEG double compression

Tanfeng Sun, Wan Wang, Xinghao Jiang
2012 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
In this paper, an improved video tampering detection model based on MPEG double compression is proposed. Double compression will import disturbance into Discrete Cosine Transform (DCT) coefficients, reflecting in the violation of the parametric logarithmic law for first digit distribution of quantized Alternating Current (AC) coefficients. A 12-D feature can be extracted from each group of pictures (GOP) and machine learning framework is adopted to enhance the detection accuracy. Furthermore, a
more » ... novel approach with a serial Support Vector Machine (SVM) architecture to estimate original bit rate scale in doubly compressed video is proposed. Experiments demonstrate higher accuracy and effectiveness.
doi:10.1109/icassp.2012.6288150 dblp:conf/icassp/SunWJ12 fatcat:7gvf2aejgvfmnjsdz4k3iq3x5y