| Issue |
ITM Web Conf.
Volume 7, 2016
3rd Annual International Conference on Information Technology and Applications (ITA 2016)
|
|
|---|---|---|
| Article Number | 02010 | |
| Number of page(s) | 4 | |
| Section | Session 2: Signal and Image Processing | |
| DOI | https://doi.org/10.1051/itmconf/20160702010 | |
| Published online | 21 November 2016 | |
Double HEVC Compression Detection with the Same QPs Based on the PU Numbers
school of Electronic and Information Engineering, Beijing Jiao tong University, Beijing, 100044
15120012@bjtu.edu.cn
a Corresponding author: Zhaohong Li, zhhli2@bjtu.edu.cn
11111053@bjtu.edu.cn
14120011@bjtu.edu.cn
Double HEVC compression detection is of great importance in video forensics. However, effective detection algorithm based on the same Qps is rarely reported. In this paper, a novel method based on the same Qps is applied in dealing with double HEVC compression detection. Firstly, the numbers of PU blocks with the size of 4×4 in each I frame is extracted during the codec procedures when the video is compressed with the same Qps. Then, calculate the standard deviation of 4×4 PU blocks difference (SDoPU) before and after the compression. Finally, select the appropriate threshold for compression testing classification according to the SDoPU statistical feature. By performing numerical experiments, We prove that the proposed algorithm is of high classification accuracy for detecting double HEVC compression.
© Owned by the authors, published by EDP Sciences, 2016
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