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Sinusoidal Siemens star spatial frequency response measurement errors due to misidentified target centers

Journal Article · · Optical Engineering
 [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
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Numerous methods are available to measure the spatial frequency response (SFR) of an optical system. A recent change to the ISO 12233 photography resolution standard includes a sinusoidal Siemens star test target. We take the sinusoidal Siemens star proposed by the ISO 12233 standard, measure system SFR, and perform an analysis of errors induced by incorrectly identifying the center of a test target. We show a closed-form solution for the radial profile intensity measurement given an incorrectly determined center and describe how this error reduces the measured SFR of the system. As a result, using the closed-form solution, we propose a two-step process by which test target centers are corrected and the measured SFR is restored to the nominal, correctly centered values.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1235334
Report Number(s):
SAND--2015-3823J; 583959
Journal Information:
Optical Engineering, Journal Name: Optical Engineering Journal Issue: 7 Vol. 54; ISSN 0091-3286
Publisher:
SPIECopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

Contrast-sensitivity-based evaluation method of a surveillance camera’s visual resolution: improvement from the conventional slanted-edge spatial frequency response method journal January 2017

Figures / Tables (11)

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
MTF
SFR
Siemens star
image quality evaluation
modulation transfer function
resolution
spatial frequency response