Efficient estimation and large-scale evaluation of lateral chromatic aberration for digital image forensics

Efficient estimation and large-scale evaluation of lateral chromatic aberration for digital image forensics
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数字图像取证横向色差的高效估计和大规模评估

DOI:
10.1117/12.839034
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Antje Winkler
Antje Winkler
中科院分区:
--
文献类型:
--
作者:
Thomas Gloe;Karsten Borowka;Antje Winkler

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横向色差的分析形成了图像法医调查员装备精良的工具箱的另一个组成部分。以前的工作提出了它的应用伪造检测1和图像源识别。2本文需要仔细研究目前的最先进的方法来分析横向色差,并提出了一种新的方法来估计横向色差在运行时有效的方式。采用11种不同的相机模型,包括43个器件,在大范围内研究了横向色差的特性。报告的结果指出了在真实的世界调查中必须考虑的一般困难。
The analysis of lateral chromatic aberration forms another ingredient for a well equipped toolbox of an image forensic investigator. Previous work proposed its application to forgery detection1and image source identification.2This paper takes a closer look on the current state-of-the-art method to analyse lateral chromatic aberration and presents a new approach to estimate lateral chromatic aberration in a runtime-efficient way. Employing a set of 11 different camera models including 43 devices, the characteristic of lateral chromatic aberration is investigated in a large-scale. The reported results point to general difficulties that have to be considered in real world investigations.
DOI: 10.1109/icip.2007.4380047
发表时间: 2007-11
期刊: 2007 IEEE International Conference on Image Processing
影响因子: --
作者:
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通讯作者: A. Dirik;Sevinc Bayram;H. Sencar;N. Memon
DOI: 10.1109/cvpr.1992.223201
发表时间: 1992-06
期刊: Proceedings 1992 IEEE Computer Society Conference on Computer Vision and Pattern Recognition
影响因子: --
作者:
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