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Psychophysics of night vision device halos

Chapter


Abstract


  • In modern Night Vision Devices (NVDs) ‘halo’ around bright light sources remains a salient imaging artifact. Although a common feature of image intensified imagery, little is known of the perceptual and operational effects of this device limitation. This paper describes two related sets of experiments. In the

    first set of experiments, we provide quantitative measurements of Night Vision Device (NVD) halos formed by light sources as a function of intensity and distance. This characterization allows for analysis of the possible effects of halo on human perception through NVDs. In the second set of experiments, the effects of halation on the perception of depth and environmental layout are investigated psychophysically. The custom simulation environment used and results from psychophysical experiments designed to analyze halo-induced errors in slope estimation are presented. Accurate simulation of image intensifier physics and NVD scene modeling is challenging and computationally demanding, yet needs to be performed in real-time at high frame rates and at high-resolution in advanced military simulators. Given the constraints of the real-time simulation, it is important

    to understand how NVD artifacts impact task performance in order to make rational engineering decisions about the required level of fidelity of the NVD simulation. A salient artifact of NVD viewing is halo, the phenomenon where the image of a bright light source appears surrounded by disc-like halo. High-fidelity physical modeling of these halo phenomena would be computationally expensive.

UOW Authors


  •   Allison, Robert S. (external author)
  •   Brandwood, Tracey (external author)
  •   Vinnikov, Margarita (external author)
  •   Zacher, James E. (external author)
  •   Jennings, Sion (external author)
  •   Macuda, Todd (external author)
  •   Thomas, Paul (external author)
  •   Palmisano, Stephen

Publication Date


  • 2010

Citation


  • Allison, R. S., Brandwood, T., Vinnikov, M., Zacher, J. E., Jennings, S., Macuda, T., Thomas, P. & Palmisano, S. A. (2010). Psychophysics of night vision device halos. In K. K. Niall (Eds.), Vision and Displays for Military and Security Applications (pp. 123-140). New York: Springer.

Scopus Eid


  • 2-s2.0-84892824118

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3412

Book Title


  • Vision and Displays for Military and Security Applications

Has Global Citation Frequency


Start Page


  • 123

End Page


  • 140

Place Of Publication


  • New York

Abstract


  • In modern Night Vision Devices (NVDs) ‘halo’ around bright light sources remains a salient imaging artifact. Although a common feature of image intensified imagery, little is known of the perceptual and operational effects of this device limitation. This paper describes two related sets of experiments. In the

    first set of experiments, we provide quantitative measurements of Night Vision Device (NVD) halos formed by light sources as a function of intensity and distance. This characterization allows for analysis of the possible effects of halo on human perception through NVDs. In the second set of experiments, the effects of halation on the perception of depth and environmental layout are investigated psychophysically. The custom simulation environment used and results from psychophysical experiments designed to analyze halo-induced errors in slope estimation are presented. Accurate simulation of image intensifier physics and NVD scene modeling is challenging and computationally demanding, yet needs to be performed in real-time at high frame rates and at high-resolution in advanced military simulators. Given the constraints of the real-time simulation, it is important

    to understand how NVD artifacts impact task performance in order to make rational engineering decisions about the required level of fidelity of the NVD simulation. A salient artifact of NVD viewing is halo, the phenomenon where the image of a bright light source appears surrounded by disc-like halo. High-fidelity physical modeling of these halo phenomena would be computationally expensive.

UOW Authors


  •   Allison, Robert S. (external author)
  •   Brandwood, Tracey (external author)
  •   Vinnikov, Margarita (external author)
  •   Zacher, James E. (external author)
  •   Jennings, Sion (external author)
  •   Macuda, Todd (external author)
  •   Thomas, Paul (external author)
  •   Palmisano, Stephen

Publication Date


  • 2010

Citation


  • Allison, R. S., Brandwood, T., Vinnikov, M., Zacher, J. E., Jennings, S., Macuda, T., Thomas, P. & Palmisano, S. A. (2010). Psychophysics of night vision device halos. In K. K. Niall (Eds.), Vision and Displays for Military and Security Applications (pp. 123-140). New York: Springer.

Scopus Eid


  • 2-s2.0-84892824118

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3412

Book Title


  • Vision and Displays for Military and Security Applications

Has Global Citation Frequency


Start Page


  • 123

End Page


  • 140

Place Of Publication


  • New York