In this paper we describe methods for testing the linearity and estimating the spectral sensitivities of color sensors in digital cameras. We base our analysis on the response of the Kodak DCS-200 and DCS-420 digital cameras to calibrated spectral input. We use this data to build a linear model of the digital camera and verify it by comparing the actual camera response to calibrated spectral in...

Recent trends show that more and more digital cameras, video cameras and DVD recorders are sold and the number of emails and other messages sent increases each year. For example it is estimated that there will be nearly 300 million digital image capture devices in use worldwide through 2004, capturing about 29 billion digital pictures [12]. Users not only produce huge amounts of content, but th...

OBJECTIVES To compare the quality of images generated from a conventional 35-mm camera with those generated from various digital cameras; and to note the costs of the cameras and ease of use. DESIGN A prospective, randomised, independent analysis of specific facial images taken with a 35-mm camera and 3 digital cameras by 3 facial plastic surgeons who were blinded to camera type. SETTING An...

This paper describes close-range calibrations of multiple Sony Alpha NEX 5 consumer digital cameras with multiple interchangeable lenses. The standard physical parameter set and a standard parameter set with affinity and orthogonality terms are tested with both block-invariant and photo-invariant principal point parameters. The impact of the parameter sets is analysed to determine the effective...