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Optical Engineering

Image resolution limits resulting from mechanical vibrations. Part IV: real-time numerical calculation of optical transfer functions and experimental verification
Author(s): Ofer Hadar; Itai Dror; Norman S. Kopeika
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Paper Abstract

A method of calculating numerically the optical transfer function appropriate to any type of image motion and vibration, including random ones, has been developed. We compare the numerical calculation method to the experimental measurement; the close agreement justifies implementation in image restoration for blurring from any type of image motion. In addition, statistics regarding the limitation of resolution as a function of relative exposure time for low-frequency vibrations involving random blur are described. An analytical approximation to the probability density function for random blur has been obtained. This can be used for the determination of target acquisition probability. A comparison of image quality is presented for three different types of motion: linear, acceleration, and high-frequency vibration for the same blur radius. The parameter considered is the power spectrum of the picture.

Paper Details

Date Published: 1 February 1994
PDF: 13 pages
Opt. Eng. 33(2) doi: 10.1117/12.153186
Published in: Optical Engineering Volume 33, Issue 2
Show Author Affiliations
Ofer Hadar, Ben-Gurion Univ. of the Negev (Israel)
Itai Dror, Ben-Gurion Univ. of the Negev (Israel)
Norman S. Kopeika, Ben-Gurion Univ. of the Negev (Israel)

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