IMAGE RESOLUTION LIMITS RESULTING FROM MECHANICAL VIBRATIONS.

D. Wulich; N. S. Kopeika

doi:10.1117/12.7974110

IMAGE RESOLUTION LIMITS RESULTING FROM MECHANICAL VIBRATIONS.

D. Wulich, N. S. Kopeika

Department of Electrical & Computer Engineering

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

High resolution airborne or vehicular imaging systems are often limited in performance by mechanical vibrations. High vibration frequency MTF is known. Low vibration frequency MTF is a random process analyzed. Average and ideal maximum spatial frequency limitations are calculated. Plots are presented to describe the number of independent images of the same object required so that at least one 'lucky shot' with a given spatial frequency requirement is obtained with a given probability. Examples for short and long relative exposures are included. These data can be used to statistically define expected performance of high resolution systems and to aid accordingly in sensor selection. The probability of achieving higher resolution improves noticeably as relative exposure time is decreased.

Original language	English
Pages (from-to)	529-533
Number of pages	5
Journal	Optical Engineering
Volume	26
Issue number	6
DOIs	https://doi.org/10.1117/12.7974110
State	Published - 1 Jan 1987

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Engineering

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abstract = "High resolution airborne or vehicular imaging systems are often limited in performance by mechanical vibrations. High vibration frequency MTF is known. Low vibration frequency MTF is a random process analyzed. Average and ideal maximum spatial frequency limitations are calculated. Plots are presented to describe the number of independent images of the same object required so that at least one 'lucky shot' with a given spatial frequency requirement is obtained with a given probability. Examples for short and long relative exposures are included. These data can be used to statistically define expected performance of high resolution systems and to aid accordingly in sensor selection. The probability of achieving higher resolution improves noticeably as relative exposure time is decreased.",

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AB - High resolution airborne or vehicular imaging systems are often limited in performance by mechanical vibrations. High vibration frequency MTF is known. Low vibration frequency MTF is a random process analyzed. Average and ideal maximum spatial frequency limitations are calculated. Plots are presented to describe the number of independent images of the same object required so that at least one 'lucky shot' with a given spatial frequency requirement is obtained with a given probability. Examples for short and long relative exposures are included. These data can be used to statistically define expected performance of high resolution systems and to aid accordingly in sensor selection. The probability of achieving higher resolution improves noticeably as relative exposure time is decreased.

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IMAGE RESOLUTION LIMITS RESULTING FROM MECHANICAL VIBRATIONS.

Abstract

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