Image resolution limits resulting from mechanical vibrations. Part IV: real-time numerical calculation of optical transfer functions and      experimental verification

Ofer Hadar; Itai Dror; Norman S. Kopeika

doi:10.1117/12.153186

1 February 1994 Image resolution limits resulting from mechanical vibrations. Part IV: real-time numerical calculation of optical transfer functions and experimental verification

Ofer Hadar, Itai Dror, Norman S. Kopeika

Author Affiliations +

Optical Engineering, Vol. 33, Issue 2, (February 1994). https://doi.org/10.1117/12.153186

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.

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Ofer Hadar, Itai Dror, and Norman S. Kopeika "Image resolution limits resulting from mechanical vibrations. Part IV: real-time numerical calculation of optical transfer functions and experimental verification," Optical Engineering 33(2), (1 February 1994). https://doi.org/10.1117/12.153186

Published: 1 February 1994

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