Title
A Framework for Decision Fusion in Image Forensics Based on Dempster–Shafer Theory of Evidence
Abstract
In this work, we present a decision fusion strategy for image forensics. We define a framework that exploits information provided by available forensic tools to yield a global judgment about the authenticity of an image. Sources of information are modeled and fused using Dempster–Shafer Theory of Evidence, since this theory allows us to handle uncertain answers from tools and lack of knowledge about prior probabilities better than the classical Bayesian approach. The proposed framework permits us to exploit any available information about tools reliability and about the compatibility between the traces the forensic tools look for. The framework is easily extendable: new tools can be added incrementally with a little effort. Comparison with logical disjunction- and SVM-based fusion approaches shows an improvement in classification accuracy, particularly when strong generalization capabilities are needed.
Year
DOI
Venue
2013
10.1109/TIFS.2013.2248727
IEEE Transactions on Information Forensics and Security
Keywords
Field
DocType
svm,feature extraction,cancer,forensics,logical disjunction,reliability,dempster shafer,dempster shafer theory,support vector machines
Data mining,Decision fusion,Computer science,Artificial intelligence,Pattern recognition,Support vector machine,Exploit,Image forensics,Logical disjunction,Dempster–Shafer theory,Theory of evidence,Machine learning,Bayesian probability
Journal
Volume
Issue
ISSN
8
4
1556-6013
Citations 
PageRank 
References 
35
1.10
6
Authors
5
Name
Order
Citations
PageRank
Marco Fontani119814.07
Tiziano Bianchi2100362.55
Alessia De Rosa331220.66
Alessandro Piva42231157.21
M. Barni53091246.21