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改进的基于模式噪声的源相机检测算法 被引量：2

An improved source camera detecting algorithm based on sensor pattern noise
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摘要 针对基于模式噪声的数码相机源检测中存在的问题,提出了一种改进的模式噪声提取算法。在Lukas算法的基础上,首先利用Wallis预滤波处理抑制低频噪声并增强模式噪声;再利用Sobel边缘检测算子对图像的复杂边缘纹理区进行有效剔除,最后利用经过上述处理得到的图像模式噪声与相机参考模式噪声模板进行相关检测。实验结果表明,提出的改进算法可以有效提高源相机检测的性能。 Aiming at the problems existing in source digital camera detection based on sensor pattern noise,an improved al-gorithm for pattern noise extraction is presented. Based on Lukas’s algorithm,the Wallis pre-filtering is employed to suppressthe low frequency noise and enhance the sensor pattern noise,and then the Sobel operator based edge detection is used to re-move the complex edge and texture regions of an image. Finally,camera correlation-based detection is performed by calculatingthe correlation between the image pattern noise obtained by the above process and the camera reference pattern noise. The ex-perimental results show that the proposed algorithm can effectively improve the detection accuracy of the source camera.
作者 孙爱华 李庆忠
机构地区 中国海洋大学工程学院
出处 《现代电子技术》 2014年第6期27-31,共5页 Modern Electronics Technique
基金 国家高技术研究发展计划("863"计划)资助项目(2006AA09Z237)
关键词 数字图像取证 源相机检测 模式噪声 Wallis预滤波 相关性检测 digital image forensics source camera detection pattern noise Wallis pre-filtering correlation-based detec-tion
分类号 TN919-34 [电子电信—通信与信息系统] TP301.6 [自动化与计算机技术—计算机系统结构]
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参考文献10

  • 1LUKAS J,FRIDRICH J,GOLJAN M.Digital“bullet scratches”for images[C]//Proceedings of IEEE International Conference on Image Processing.Genova,Italy:IEEE,2005:65-68.
  • 2LUKAS J,FRIDRICH J,GOLJAN M.Digital camera identification from sensor pattern noise[J].IEEE Transactions on Information Forensics and Security,2006,1(2):205-214.
  • 3FRIDRICH J,CHEN M,GOLJAN M.Imaging sensor noise as digital X-ray for revealing forgeries[C]//Proceedings of 9th International Workshop on Information Hiding.Saint Malo,France:[s.n.],2007:342-358.
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  • 8KANG Xian-gui,LI Yin-xiang,QU Zhen-hua,et al.Enhancing source camera identification performance with a camera reference phase sensor pattern noise[J].IEEE Transactions on Information Forensics and Security,2012,7(2):393-420.
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二级参考文献13

  • 1KHARRAZI M, SENCAR H T, MEMON N. Blind source camera i- dentification[ C]//Proceedings of IEEE International Conference on Image Processing. Piseataway: IEEE Press, 2004:709-712.
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现代电子技术
2014年 第6期

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