James P. Gaska

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We present new structural classification and parameter estimation results that are applicable to multi-input nonlinear systems. The mathematical relationships between the self- and cross-(Volterra and Wiener) kernels are derived for a basic two-input nonlinear structure (Fig. 1a). These results are then used to develop classification methods for more(More)
PURPOSE A driving simulator was used to examine the relationship between motion perception and driving performance. Although motion perception test scores have been shown to be related to driving safety, it is not clear which combination of tests are the best predictors and whether motion perception training can improve driving performance. METHODS In(More)
INTRODUCTION Although there are numerous studies that demonstrate that color vision deficient (CVD) individuals perform less well than color vision normal (CVN) individuals in tasks that require discrimination or identification of colored stimuli, there remains a need to quantify the relationship between the type and severity of CVD and performance on(More)
Interand intra-channel color and luminance are generally non-uniform in multi-channel projection display systems. Several methods have been proposed to correct for both interand intra-channel color and luminance variation in multi-channel systems in the past, with varying degrees of success. In this paper, a color and luminance correction method is proposed(More)
U.S. Air Force medical vision standards currently establish a minimum level of depth perception and ocular alignment. These standards apply not only to pilots but also to aircrew with scanner duty, which applies to aircrew involved in clearing aircraft for landing. This has been especially important since an accident in 1998 involving two H-60 aircraft that(More)
An evaluation of a prototype grating light valve laser projector indicates it has properties well-suited to flight-simulation applications. Full-field luminance and contrast, spatial resolution, temporal resolution, and color stability were equal to or better than those of CRT projectors typically used in flight-simulator applications. In addition, this(More)
Networked flight simulators facilitate team training by creating exercise environments and simulations representative of real-world operations. However, networked simulators are often plagued by connectivity issues, such as constant and variable network delay. Network delay can cause positional discrepancies or visual jitter in the flight path of a moving(More)
In this work, which is part of the U.S. Air Force School of Aerospace Medicine Operational Based Vision Assessment program, a high resolution stereoscopic head-mounted display (HMD), X-Plane image generators, and an OptiTrack head-tracking system were used to render an immersive three-dimensional constructive environment. The purpose of this effort was to(More)