| Full text | |
| Author(s): |
Ferreira, Anselmo
;
Felipussi, Siovani C.
;
Alfaro, Carlos
;
Fonseca, Pablo
;
Vargas-Munoz, John E.
;
dos Santos, Jefersson A.
;
Rocha, Anderson
Total Authors: 7
|
| Document type: | Journal article |
| Source: | IEEE Transactions on Image Processing; v. 25, n. 10, p. 4729-4742, OCT 2016. |
| Web of Science Citations: | 12 |
| Abstract | |
The detection of copy-move image tampering is of paramount importance nowadays, mainly due to its potential use for misleading the opinion forming process of the general public. In this paper, we go beyond traditional forgery detectors and aim at combining different properties of copy-move detection approaches by modeling the problem on a multiscale behavior knowledge space, which encodes the output combinations of different techniques as a priori probabilities considering multiple scales of the training data. Afterward, the conditional probabilities missing entries are properly estimated through generative models applied on the existing training data. Finally, we propose different techniques that exploit the multi-directionality of the data to generate the final outcome detection map in a machine learning decision-making fashion. Experimental results on complex data sets, comparing the proposed techniques with a gamut of copy-move detection approaches and other fusion methodologies in the literature, show the effectiveness of the proposed method and its suitability for real-world applications. (AU) | |
| FAPESP's process: | 15/19222-9 - DejaVu: social media forensics for interpreting criminal events |
| Grantee: | Anderson de Rezende Rocha |
| Support Opportunities: | Scholarships abroad - Research |