Non-Intrusive Forensic Analysis of Visual Sensors Using Output Images

TitleNon-Intrusive Forensic Analysis of Visual Sensors Using Output Images
Publication TypeConference Papers
Year of Publication2006
AuthorsSwaminathan A, M. Wu, Liu KJR
Conference NameAcoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Date Published2006/05//
Keywordsalgorithms;interpolation, analysis;image, analysis;output, array, cameras;forensic, Color, colour, engineering;forensic, forensic, images;visual, methods;nonintrusive, PROCESSING, sensor;digital, sensors;cameras;image, sensors;interpolation;, signal

This paper considers the problem of non-intrusive forensic analysis of the individual components in visual sensors and its implementation. As a new addition to the emerging area of forensic engineering, we present a framework for analyzing technologies employed inside digital cameras based on output images, and develop a set of forensic signal processing algorithms for visual sensors based on color array sensor and interpolation methods. We show through simulations that the proposed method is robust against compression and noise, and can help identify various processing components inside the camera. Such a non-intrusive forensic framework would provide useful evidence for analyzing technology infringement and evolution for visual sensors