Distance Estimation to Flashes in a Simulated Night Vision Environment

Appréciation de la Distance des Éclairs dans un Environnement Simulé Observé avec des Lunettes de Vision de Nuit


  1. Moraweic, G.
  2. Niall, K.K.
  3. Scullion, K.
Corporate Authors
Defence R&D Canada - Toronto, Toronto ONT (CAN);Royal Military Coll of Canada, Kingston ONT (CAN)
The Canadian Forces have recognized the importance of simulator training as a cost-effective alternative to real training; yet the effect of display simulation on visual perception is not fully understood. Eighteen subjects participated in an experiment to determine if training, in the form of immediate feedback, improved distance estimation to muzzle flashes in a simulated NVG environment. Testing was performed on a PC desktop computer using software that simulated a large open grassy field. Subjects were exposed to three flash types; five flashes, single flash, and a prolonged flash. Flashes were presented to the subjects both above and below the horizon. Significant improvement was shown in the experimental group’s accuracy; this accuracy persisted over two weeks but with notable deterioration. Contrary to expectation the perception of a single flash resulted in significantly greater accuracy than the prolonged flash. This experiment reinforces the effectiveness of simulation as a tool in preparing soldiers. A bibliography of the topic is included.

Il y a un résumé en français ici.

Distance estimation;night vision;night simulation;image intensifiers;feedback training
Report Number
DRDC-TORONTO-TR-2007-143 — Technical Report
Date of publication
01 Dec 2007
Number of Pages
Electronic Document(PDF)

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