Device-based image matching with similarity learning by convolutional neural networks that exploit the underlying camera sensor pattern noise

Swaroop Bennabhaktula*, Enrique Alegre, Dimka Karastoyanova, George Azzopardi

*Corresponding author for this work

Research output: Contribution to conferencePaperAcademic

1 Citation (Scopus)
159 Downloads (Pure)

Abstract

One of the challenging problems in digital image forensics is the capability to identify images that are captured by the same camera device. This knowledge can help forensic experts in gathering intelligence about suspects by analyzing digital images. In this paper, we propose a two-part network to quantify the likelihood that a given pair of images have the same source camera, and we evaluated it on the benchmark Dresden data set containing 1851 images from 31 different cameras. To the best of our knowledge, we are the first ones addressing the challenge of device-based image matching. Though the proposed approach is not yet forensics ready, our experiments show that this direction is worth pursuing, achieving at this moment 85 percent accuracy. This ongoing work is part of the EU-funded project 4NSEEK concerned with forensics against child sexual abuse.

Original languageEnglish
Pages578-584
Number of pages7
DOIs
Publication statusPublished - 2020

Keywords

  • Source Camera Identification
  • Image Forensics
  • Sensor Pattern Noise

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