A new method of view range evaluation for night view system

View range is one of the main integrated performance indexes, and is also the important performance index needed to give when night view systems leave factory. A new objective view range evaluation method for night view system is proposed in this paper by using image processing technology, data fit, vision sense formula under glimmer light circumstance and other knowledge. With the help of the method, the paper has carried out four groups' experimentation with field situation of four kind's night view system. The result of view range calculation indicates that the new method not only has effectively improved the speed of view range measurement for night view system, but also possesses good precision and practicability.