数字照片相机来源认证方法研究  

Detecting Authentication Methods of the Source Camera Forensics

作　　者：孙晓婷[1] 李叶舟[1] 牛少彰[2] 孟宪哲[2] 

机构地区：[1]北京邮电大学理学院,北京中国100876 [2]北京邮电大学计算机学院,北京中国100876

出　　处：《中国电子商情（通信市场）》2012年第6期100-104,共5页

摘　　要：数字照片来源认证技术是对未知来源的图像与相机模型进行匹配的技术，即仅通过图像本身来判定图像是由该图像是由何种相机拍摄的技术。在这一领域近年来涌现了许多新理论、新方法。本文首先介绍了数字照片的成像原理，并概括出数字照片来源取证的一般模型框架。然后基于所提取特征的来源不同这一点将认证方法分为两类，一类是基于图像的统计特征；另一类基于相机成像过程引入的特征，并对不同算法进行了性能比较与总结。最后探讨了数字图像来源取证技术存在的问题及未来的发展方向。The technology of digital image source authentication is to understand the real source of the image based on itself, and this digital image is by which a manufacturer and by which type of equipment for.Many new theories and new methods appeared in recent years.This paper first intruduces the theory of digital imaging,and presents a model of digital image source forensics.Then,arroding to the extraction features of different sources,the techniques of digital image source forensics are divided into two categories：techniques based on the image features of the image,techniques based on the image features from carmera imaging process,as well as performance comparison and analysis of various algorithms are summarized in detail for each category.The last part discussion on the unresolved problems and future directions is presented.

关 键 词：数字图像取证 相机来源鉴别 图像特征 

分 类 号：TP278[自动化与计算机技术—检测技术与自动化装置]