22 March 2013 Forensic analysis of interdependencies between vignetting and radial lens distortion
Author Affiliations +
Abstract
Optical aberrations are an inherent part of all images captured with a digital camera and might form another valuable characteristic to build reliable image forensic methods. Within this paper we focus on vignetting and radial lens distortion and investigate interdependencies between both optical aberrations. Using checkerboards and a homogeneously illuminated white wall as ideal test patterns, we investigate the influence of lens settings and camera orientation. More precisely, we use images of the `Dresden Image Database' and a specifically created data set to investigate relations between the appearance of optical aberrations and lens settings, focal length, focus, and aperture. Our experiments use images of natural scenes to point to general difficulties that have to be considered when vignetting and radial lens distortion are analyzed in realistic scenarios.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
André Fischer, Thomas Gloe, "Forensic analysis of interdependencies between vignetting and radial lens distortion", Proc. SPIE 8665, Media Watermarking, Security, and Forensics 2013, 86650D (22 March 2013); doi: 10.1117/12.2004348; https://doi.org/10.1117/12.2004348
PROCEEDINGS
15 PAGES


SHARE
RELATED CONTENT

A system for estimating optics blur PSFs from test chart...
Proceedings of SPIE (February 27 2015)
Managing a large database of camera fingerprints
Proceedings of SPIE (January 27 2010)
Image and video fingerprinting: forensic applications
Proceedings of SPIE (February 04 2009)
Achieving design reuse: a case study
Proceedings of SPIE (July 21 2008)
Content based image retrieval using a mobile device as a...
Proceedings of SPIE (January 17 2005)

Back to Top