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Optical Engineering

Image quality and [lambda]FN/p for remote sensing systems
Author(s): Robert D. Fiete
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Paper Abstract

The ratio of the sampling frequency to the optical bandpass limit of an incoherent diffraction-limited optical system is a fundamental design parameter for digital imaging systems. This ratio is denoted by ?FN/p, where ? is the mean wavelength, FN is the system f/number, and p is the detector sampling pitch. The value of ?FN/p for a remote sensing system can have a profound impact on the image quality and the utility of the acquired images. The interaction between ?FN/p and image quality is sensitive to the system design parameters such as modulation transfer function (MTF), signal-to-noise ratio (SNR), and ground sampled distance (GSD). Image simulations and analysis are presented that illustrate the changes in image quality as a function of ?FN/p. System design trades that may influence the determination of the optimal lFN/p for a remote sensing system are also discussed.

Paper Details

Date Published: 1 July 1999
PDF: 12 pages
Opt. Eng. 38(7) doi: 10.1117/1.602169
Published in: Optical Engineering Volume 38, Issue 7
Show Author Affiliations
Robert D. Fiete, Eastman Kodak Co. (United States)


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