Influence of night vision goggles on depth perception and the value of depth perception training
Objective To study the influence of night vision goggles(NVG)on depth perception and the role of depth perception training in improving depth perception.Methods The naked and NVG depth perception of 113 healthy male volunteers was tested using facilities for depth perception measurement and NVGs in a dark room.The measurements were repeated three times.Differential analysis was conducted of naked and NVG depth perception.Variance analysis was used to determine the influence of the number of times of measurement on the results of depth perception.Results The results of 3-time measurements of naked depth perception were(62.55±64.70)mm,(39.83±42.55)mm and(39.50±42.89)mm respectively,compared with(98.29±83.74)mm,(63.22±60.29)mm and(65.50±69.69)mm for NVG depth perception.The results of 3-time measurements of NVG depth perception were significantly worse(P＜0.05).The results of the second and third measurements were significantly improved compared with the first one(P＜0.05),involving both the naked and NVG depth perception.Conclusion Depth perception with NVGs is significantly worse than naked perception,but it can be enhanced after experience is gained.Pilots need to experience depth perception with NVGs and their depth perception should be evaluated before night flight missions.
depth perceptionnight vision gogglesexperience of depth perception with NVGs
国家科技期刊平台
NSTL
万方数据
