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Toet, A. (author), Hogervorst, M.A. (author), TNO Defensie en Veiligheid (author)
We developed a simple and fast lookup-table based method to derive and apply natural daylight colors to multi-band night-time images. The method deploys an optimal color transformation derived from a set of samples taken from a daytime color reference image. The colors in the resulting colorized multiband night-time images closely resemble the...
conference paper 2008
document
Hogervorst, M.A. (author), Toet, A. (author)
We present a fast and efficient method to derive and apply natural colors to nighttime imagery from multiband sensors. The color mapping is derived from the combination of a multiband image and a corresponding natural color reference image. The mapping optimizes the match between the multiband image and the reference image, and yields a...
conference paper 2008
document
TNO Technische Menskunde (author), Bijl, P. (author), Valeton, J.M. (author), Hogervorst, M.A. (author)
The traditional test pattern for end-to-end EO system performance testing in the laboratory has been the static 3- or 4-bar target. This choice was governed by linear systems approach. The introduction of under-sampled imagers such as IRFPAs (infrared focal plane array cameras) has challenged the testing community to develop an alternative test,...
conference paper 2001