Share Email Print

Optical Engineering

Image quality and [lambda]FN/p for remote sensing systems
Author(s): Robert D. Fiete
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

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)

© SPIE. Terms of Use
Back to Top