P-33: Identification of Simulated Targets as a Function of Target and Background Blur

Abstract

Simulated imagery was used to determine the effect of target and background blur on target identification performance.An interaction between these two variables was found, indicating that greater image detail may not improve performance, and hence may not be required in applications for which high-resolution databases are not readily available.

P‐36: Equating Simulated and Real‐World Imagery Using a Target Identification Criterion

“…Previous work [5] has shown that target contrast, as opposed to the detail of surrounding terrain, is the main determinant of target identification performance in the present experimental context. Therefore, a single background image was used.…”

P-216: Comparison of a Local Contrast Metric with Flight-Simulator Target-Identification Data

“…The target identification data were obtained from Geri et al [3]. Their test stimuli consisted of a right-or left-facing M1-tank model superimposed on a background image obtained from a standard flight simulator database.…”

“…The analysis presented here is part of a research project whose goal is to characterize the effect of target and background detail on target identification performance when performing air-toground tasks in flight simulators. Recent studies in our lab examined the effect of target and background blur on left vs. right target identification performance using imagery similar to that seen in targeting pods [3]. Various models have been proposed for characterizing target identification performance.…”

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We used a visible contrast metric developed by Ahumada and colleagues [1,2] to predict behavioral data gathered in our lab [3]. We found that the metric, augmented with an empirically determined psychometric function provides a reasonable prediction of left-right identification data, and should prove useful in characterizing the influence of target and background resolution on target identification in flight simulators.

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P-30: Target Identification on Simulated Terrain Imagery Varying in Resolution

“…It has previously been shown (Geri, et al, 2005) that a decrease in background blur, defined by the Fourier spectra of the background imagery, results in a decrease in performance in an air-to-ground target identification task. In Experiment 1, we have assessed target identification for various levels of database resolution and slant range (viewing distance).…”