Comparison of three night vision intensification tube technologies on resolution acuity: results from Grating and Hoffman ANV-126 tasks. Macuda, T., Allison, R., Thomas, P., Truong, L., Tang, D., Craig, G., & Jennings, S. In volume 5800, of Proc. SPIE - Int. Soc. Opt. Eng. (USA), pages 32-9, Orlando, FL, USA, 2005. SPIE-Int. Soc. Opt. Eng. ![Comparison of three night vision intensification tube technologies on resolution acuity: results from Grating and Hoffman ANV-126 tasks [link]](https://bibbase.org/img/filetypes/link.svg "link")
-1 doi abstract bibtex Several methodologies have been used to determine resolution acuity through Night Vision Goggles. The present study compared NVG acuity estimates derived from the Hoffman ANV-126 and a standard psychophysical grating acuity task. For the grating acuity task, observers were required to discriminate between horizontal and vertical gratings according to a method of constant stimuli. Psychometric functions were generated from the performance data, and acuity thresholds were interpolated at a performance level of 70% correct. Acuity estimates were established at three different illumination levels (0.06-5X10-4 lux) for both procedures. These estimates were then converted to an equivalent Snellen value. The data indicate that grating acuity estimates were consistently better (i.e. lower scores) than acuity measures obtained from the Hoffman ANV-126. Furthermore significant differences in estimated acuity were observed using different tube technologies. In keeping with previous acuity investigations, although the Hoffman ANV-126 provides a rapid operational assessment of tube acuity, it is suggested that more rigorous psychophysical procedures such as the grating task described here be used to assess the real behavioural resolution of tube technologies
@inproceedings{allison200532-9,
abstract = {Several methodologies have been used to determine resolution acuity through Night Vision Goggles. The present study compared NVG acuity estimates derived from the Hoffman ANV-126 and a standard psychophysical grating acuity task. For the grating acuity task, observers were required to discriminate between horizontal and vertical gratings according to a method of constant stimuli. Psychometric functions were generated from the performance data, and acuity thresholds were interpolated at a performance level of 70\% correct. Acuity estimates were established at three different illumination levels (0.06-5X10<sup>-4</sup> lux) for both procedures. These estimates were then converted to an equivalent Snellen value. The data indicate that grating acuity estimates were consistently better (i.e. lower scores) than acuity measures obtained from the Hoffman ANV-126. Furthermore significant differences in estimated acuity were observed using different tube technologies. In keeping with previous acuity investigations, although the Hoffman ANV-126 provides a rapid operational assessment of tube acuity, it is suggested that more rigorous psychophysical procedures such as the grating task described here be used to assess the real behavioural resolution of tube technologies},
address = {Orlando, FL, USA},
author = {Macuda, T. and Allison, R.S. and Thomas, P. and Truong, L. and Tang, D. and Craig, G. and Jennings, S.},
date-modified = {2012-07-02 22:25:27 -0400},
doi = {10.1117/12.602598},
keywords = {Night Vision},
pages = {32-9},
publisher = {SPIE-Int. Soc. Opt. Eng},
series = {Proc. SPIE - Int. Soc. Opt. Eng. (USA)},
title = {Comparison of three night vision intensification tube technologies on resolution acuity: results from Grating and Hoffman ANV-126 tasks},
url-1 = {http://dx.doi.org/10.1117/12.602598},
volume = {5800},
year = {2005},
url-1 = {https://doi.org/10.1117/12.602598}}
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