Sampling And Aliasing Problems With Imaging Arrays

Andreas Nordbryhn

doi:10.1117/12.941599

14 May 1984 Sampling And Aliasing Problems With Imaging Arrays

Andreas Nordbryhn

Proceedings Volume 0467, Image Assessment: Infrared and Visible; (1984) https://doi.org/10.1117/12.941599
Event: Image Assessment Infrared and Visible, 1983, Oxford, United Kingdom

Abstract

In solid state imaging arrays aliasing is most certain to occur, unless some sort of presampling filters are used. A presampling filter would be an optical low-pass filter. Using incoherent light, there is a limit to how ideal such a filter can be made. Loss of contrast will always occur during prefiltering. Therefore there will be a trade-off between aliasing and contrast loss. A review of this problem is given. It is argued that with some applications, aliasing is not very harmful. This corresponds well to the common, practical use of solid state imagers, where no anti-aliasing filters are applied.

Citation Download Citation

Andreas Nordbryhn "Sampling And Aliasing Problems With Imaging Arrays", Proc. SPIE 0467, Image Assessment: Infrared and Visible, (14 May 1984); https://doi.org/10.1117/12.941599

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