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Proceedings Paper

Modulation transfer function as a predictor of visual acuity using a night vision device
Author(s): S. C. Fullenkamp; T. L. Trissell; D. L. Aleva; S. Dixon; H. L. Task
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Paper Abstract

Night Vision Goggles (NVGs) are being used increasingly by the military and law enforcement agencies for night operations. One critical issue in assessing the utility of an NVG is its resolving power or capability to make fine detail distinguishable. The resolution of Night Vision Goggles is typically assessed by measuring the visual acuity of an operator looking through the goggles. These methods can be time consuming. Further, inconsistencies associated with visual observations and judgement add to the variance associated with these measurements. NVG Modulation Transfer Function (MTF) was explored as a possible means of characterizing NVG image quality independent of a human observer. MTF maps the potential contrast output of the NVGs as a function of spatial frequency. The results of this MTF measurement were compared with a commonly used method of visual acuity assessment.

Paper Details

Date Published: 19 May 2005
PDF: 10 pages
Proc. SPIE 5800, Helmet- and Head-Mounted Displays X: Technologies and Applications, (19 May 2005); doi: 10.1117/12.603776
Show Author Affiliations
S. C. Fullenkamp, Advanced Information Systems (United States)
T. L. Trissell, Advanced Information Systems (United States)
D. L. Aleva, Air Force Research Lab. (United States)
S. Dixon, Air Force Research Lab. (United States)
H. L. Task, Task Consulting (United States)

Published in SPIE Proceedings Vol. 5800:
Helmet- and Head-Mounted Displays X: Technologies and Applications
Clarence E. Rash; Colin E. Reese, Editor(s)

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