Blar i Institutt for informasjonssikkerhet og kommunikasjonsteknologi på tidsskrift "Proceedings of SPIE, the International Society for Optical Engineering"
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Characterizing the response of charge-couple device digital color cameras
(Journal article; Peer reviewed, 2012)The advance and rapid development of electronic imaging technology has lead the way to production of imaging sensors capable of acquiring good quality digital images with a high resolution. At the same time the cost and ... -
Clustering Document Fragments using Background Color and Texture Information
(Journal article; Peer reviewed, 2012)Forensic analysis of questioned documents sometimes can be extensively data intensive. A forensic expert might need to analyze a heap of document fragments and in such cases to ensure reliability he/she should focus ... -
Collecting fingerprints for recognition using mobile phone cameras
(Journal article; Peer reviewed, 2012)We present in this paper a sample quality control approach for the case using a mobile phone’s camera as a fingerprint sensor for fingerprint recognition. Our approach directly estimates the maximum ridge frequency ... -
Computational color constancy using chromagenic filters in color filter arrays
(Journal article; Peer reviewed, 2012)We have proposed, in this paper, a new color constancy technique, an extension to the chromagenic color constancy. Chromagenic based illuminant estimation methods take two shots of a scene, one without and one with a ... -
Subjective evaluations of example-based, total variation, and joint regularization for image processing
(Journal article; Peer reviewed, 2012)We report on subjective experiments comparing example-based regularization, total variation regularization, and the joint use of both regularizers. We focus on the noisy deblurring problem, which generalizes image supe ... -
Termites: a Retinex implementation based on a colony of agents
(Journal article; Peer reviewed, 2012)This paper describes a novel implementation of the Retinex algorithm with the exploration of the image done by an ant swarm. In this case the purpose of the ant colony is not the optimization of some constraints but is ...