A Jungle Computing approach to common image source identification in large collections of images. (December 2018)

• Record Type: Journal Article
• Authors: van Werkhoven, B.; Hijma, P.; Jacobs, C.J.H.; Maassen, J.; Geradts, Z.J.M.H.; Bal, H.E.
• Is Part Of: Digital investigation. Volume 27(2018)
• Page Start: 3
• Page End: 16
• Publication Date: 2018-12
• Subjects: Jungle computing -- Digital camera identification -- Large-scale common source identification -- Photo-response non-uniformity -- Digital forensics; Forensic sciences -- Data processing -- Periodicals; Criminal investigation -- Data processing -- Periodicals; 363.250285
• DOI: 10.1016/j.diin.2018.09.002
• Languages: English
• ISSNs: 1742-2876

Abstract

Abstract: Analyzing digital images is an important investigation in forensics with the ever increasing number of images from computers and smartphones. In this article we aim to advance the state-of-the-art in common image source identification (which images originate from the same source camera). To this end, we present two types of applications for different goals that make use of a) a modern Desktop computer with a GPU and b) highly heterogeneous cluster computers with many different kinds of GPUs, something we call computing jungles. The first application targets medium-scale investigations, for example within a crime laboratory, the second application is targeted at large-scale investigations, for example within institutions. We advance the state-of-the-art by 1) explaining in detail how we obtain the performance to 2) support large databases of images in reasonable time while 3) not giving up accuracy. Moreover, we do not apply filtering ensuring that 4) our results are highly reproducible.