A Method For Estimating Scanner Spot Energy/Sensitivity Distribution

John O. Bumgarner; Glenn R. Peterson

doi:10.1117/12.954072

1 March 1975 A Method For Estimating Scanner Spot Energy/Sensitivity Distribution

John O. Bumgarner, Glenn R. Peterson

Proceedings Volume 0048, Acquisition and Analysis of Pictorial Data; (1975) https://doi.org/10.1117/12.954072
Event: Acquisition and Analysis of Pictorial Data, 1974, San Diego, United States

Abstract

Most methods for measuring the system response of image digitizers have involved an optical knife-edge. There are two reasons for this: first, high quality knife-edges are not difficult to obtain; and second, the one-dimensional impulse response of the system may be obtained by differentiating the response to a step function (which the knife-edge approximates).* The technique presented below uses a knife-edge scan in a slightly novel context to obtain the edge spread function (ESF) of image scanners. Traditional methods may then be used to obtain the line spread function (LSF) from the ESF.

Citation Download Citation

John O. Bumgarner and Glenn R. Peterson "A Method For Estimating Scanner Spot Energy/Sensitivity Distribution", Proc. SPIE 0048, Acquisition and Analysis of Pictorial Data, (1 March 1975); https://doi.org/10.1117/12.954072

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