JUNGLE VISION VI. A COMPARISON BETWEEN THE DETECTABILITY OF HUMAN TARGETS AND STANDARD VISIBILITY OBJECTS IN AN EVERGREEN RAINFOREST
Abstract
Twenty US Infantry soldiers with normal vision were presented 108 targets at distances ranging from 30 feet to 120 feet on two sites in a Canal Zone evergreen rainforest. Observers were presented 18 each of the following targets: olive drab silhousettes, olive drab cylinders, double white discs, single white discs, silhouettes camouflaged by the USAERDL four-color 1948 pattern, and human targets in fatigue uniforms. Comparisons between human targets and standard visibility objects were made using four criteria: 50% detection thresholds, total number of detections, visibility gradients, and observer response variability. Quantitative comparisons showed that both the olive drab silhouette and the olive drab cylinder closely approximated the detectability of the human targets; of the two objects, the silhouette was considered superior. The USAERDL four-color camouflage cloth effectively and significantly reduced detections by ground observers in jungle vegetation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1966
- Accession Number
- AD0481178
Entities
People
- C. M. Kindick
- D. A. Dobbins