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论文类型：期刊论文

发表时间：2015-12-31

发表刊物：KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS

收录刊物：SCIE、EI、Scopus

卷号：9

期号：12

页面范围：5087-5102

ISSN号：1976-7277

关键字：Image forensics; cell phone source identification; classifier combination; interpolation coefficient

摘要：Rapid popularization of smart cell phone equipped with camera has led to a number of new legal and criminal problems related to multimedia such as digital image, which makes cell phone source identification an important branch of digital image forensics. This paper proposes a classifier combination based source identification strategy for cell phone images. To identify the outlier cell phone models of the training sets in multi-class classifier, a one-class classifier is orderly used in the framework. Feature vectors including color filter array (CFA) interpolation coefficients estimation and multi-feature fusion is employed to verify the effectiveness of the classifier combination strategy. Experimental results demonstrate that for different feature sets, our method presents high accuracy of source identification both for the cell phone in the training sets and the outliers.