摘要
分析了温度、大气压力、摄影高度的变化对航空相机离焦的影响,提出了计算相机离焦量的数学方程,给出了基于温度、压力传感器信号和GPS高度数据通过移动CCD进行自动调焦的设计,试验结果表明,这种方法不仅可行,而且调焦精度高,非常适用于航空相机系统。
The effect of temperature, atmospheric pressure and photographic distance on a aerial camera being out of focus is discussed. A mathematical equation is proposed for calculation out of focus. A auto-focus system of moving CCD is designed based on the changes in temperature, atmospheric pressure and photographic distance. The conclusion of the test indicates that the method is not only practicable but also high accuracy. This system is applicable to long focus aerial camera.
出处
《军民两用技术与产品》
2007年第6期30-31,共2页
Dual Use Technologies & Products
关键词
传感器
自动调焦
离焦
调焦精度
Sensor, Auto-focus, Out of focus, Focus accuracy
