Validation of a Visual Perception Laboratory and Modeling Using the Fuzzy Logic Approach by

The purpose of this test is to compare the visual detection of military targets in the TARDEC Visual Perception laboratory (VPL) with detection performance in the field. Thirty 35mm color slides were used from a Marine Corps field test to validate the test procedures used in the TARDEC Visual Perception Laboratory (VPL). The color slides were of seven military vehicles positioned at tactical range in the desert. The correlation of the laboratory to the field ranged from 0.5 to 0.95 depending on the variables analyzed and questions asked of the subjects. The highest correlation, 0.95, was obtained when comparing identification rates of the vehicles between the field and the lab. VPL PROCEDURAL SETUP The test subjects were positioned in front of a rear-projection screen. The distance from the screen to the subject was 259cm. The AAV (Assault Amphibian Vehicle) in image 4-1 was used to check the distance from the projector to the screen. The actual length of the AAV is 7.943m and at a distance of 1 km, the vehicle subtense 0.0078 radians. With the subject to the screen distance of 259 cm, the AAV size was 2 cm high on the screen. The projector was placed so as to project the correct size of the AAV, see Fig. 2