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噪声方差和纹理复杂度分析的源相机识别 被引量：4

Source camera identification using noise variance and texture complexity analysis
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摘要 针对源相机识别问题,提出了一种利用噪声方差和纹理复杂度分析的源相机识别新方法。首先围绕彩色滤波阵列(CFA)插值和小波去噪,讨论了传统的模式噪声提取方法的不足,接着重点讨论利用噪声方差以及根据模糊聚类去除高纹理复杂区域进行模式噪声提取的新方法。实验表明所提取的模式噪声不仅能更好地反映数码相机的模式噪声特性,而且对来自三种不同相机的照片的平均识别率提高了近6.3%。 In allusion to source camera identification,a new method was proposed with noise variance and texture complexity analysis.Concerning Color Filter Array（CFA） interpolation and wavelet-based denoising,the insufficiency of traditional methods for extracting pattern noise was discussed first.Afterwards,the discussion was focused on the new extraction method according to noise variance and removing complex textured areas using fuzzy clustering.Experiments show that the extracted pattern noise not only reflects camera＇s pattern noise well,but also improves the average accuracy with 6.3 percent for identifying images from three different camera models.
作者 陈宗民 周治平
机构地区 江南大学物联网工程学院
出处 《计算机应用》 CSCD 北大核心 2012年第6期1563-1566,共4页 journal of Computer Applications
关键词 数字图像取证 源相机识别 模式噪声 噪声方差 模糊聚类 digital image forensics source camera identification pattern noise noise variance fuzzy clustering
分类号 TP391.41 [自动化与计算机技术—计算机应用技术]
  • 相关文献

参考文献13

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二级参考文献11

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共引文献2

同被引文献18

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引证文献4

二级引证文献10

计算机应用
2012年 第6期

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