计算机应用研究2016，Vol.33Issue(8)：2409-2412,4.DOI:10.3969/j.issn.1001-3695.2016.08.037
使用 PSNR 周期特性检测视频帧率上转伪造
Detecting frame-rate up-conversion forgery in videos using periodicity of PSNR change
摘要
Abstract
Frame-rate up-conversion (FRUC)refers to interpolating new frames between original video frames to increase the frame rate,which is widely used in video splicing forgery of two video with different frame rate.Advanced FRUC methods of-ten use motion compensated interpolators to reduce the visual artifacts,which brings challenges for this kind of forgery detec-tion.This paper proposed a simple yet effective detection method of this kind of forgery that estimated the original frame rate. This method used the periodic changes of PSNR for each pair frames,i.e.,the constructed interpolation frame by FRUC and the original frame.Experimental results on several sequences show that the proposed approach achieves desirable performance in terms of detection accuracy.It is also validated for those video sequences after PRUC and lossy compression,which further proves its robustness in a real application scenario.关键词
视频帧率上转/运动补偿/峰值信噪比/视频被动取证Key words
video frame-rate up-conversion/motion compensation/PSNR periodic changes/passive video forensics分类
信息技术与安全科学引用本文复制引用
夏明,杨高波,黄勤珍..使用 PSNR 周期特性检测视频帧率上转伪造[J].计算机应用研究,2016,33(8):2409-2412,4.基金项目
国家自然科学基金资助项目（61072122，61379143）；西南民族大学中央高校基本研究基金资助项目 （）
