Physics-Based Stimulation for Night Vision Goggle Simulation
Final rept. Jan 2004-Jun 2006
RENAISSANCE SCIENCES CORPORATION CHANDLER AZ
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Attempts at devising training simulator out-the-window night time displays that can be effectively used by a night vision goggle NVG- wearing trainee have yielded NVG display systems of questionable fidelity, stability, andor repeatability. The physics-based approach reported here first characterizes a display in terms of its absolute dynamic output range for night vision imaging system NVIS radiance and then, using that characterization, maps, as possible, to-be-displayed NVIS radiance values of simulated scene objects on to the display itself. Treatment of NVG-specific phenomena, such as halos, is discussed, as are considerations of NVIS cross-illumination in multiscreen displays. Modifications to an existing NVG simulation software module SensorHost to accommodate display of NVIS radiance are described. Example NVIS characterizations of various off-the-shelf simulator display systems are detailed.
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