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- W2009571403 abstract "Stray light is the part of an image that is formed by misdirected light. I.e. an ideal optic would map a point of the scene onto a point of the image. With real optics however, some parts of the light get misdirected. This is due to effects like scattering at edges, Fresnel reflections at optical surfaces, scattering at parts of the housing, scattering from dust and imperfections – on and inside of the lenses – and further reasons. These effects lead to errors in colour-measurements using spectral radiometers and other systems like scanners. Stray light is further limiting the dynamic range that can be achieved with High-Dynamic-Range-Technologies (HDR) and can lead to the rejection of cameras due to quality considerations. Therefore it is of interest, to measure, quantify and correct these effects. Our work aims at measuring the stray light point spread function (stray light PSF) of a system which is composed of a lens and an imaging sensor. In this paper we present a framework for the evaluation of PSF-models which can be used for the correction of straylight. We investigate if and how our evaluation framework can point out errors of these models and how these errors influence straylight correction." @default.
- W2009571403 created "2016-06-24" @default.
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- W2009571403 date "2015-02-27" @default.
- W2009571403 modified "2023-10-18" @default.
- W2009571403 title "Measurement and analysis of the point spread function with regard to straylight correction" @default.
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- W2009571403 doi "https://doi.org/10.1117/12.2078333" @default.
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