航空相机焦面信息检测技术研究

检测航空相机的焦面信息是保证航空相机拍摄出高质量图像的重要的前提条件.提出了一种焦面信息自动检测系统,叙述了系统的工作原理、组成和软件的设计.该系统采用光学准直系统产生焦面信息,利用CCD摄像头接收图像,采用最小二乘法的曲线拟合处理数据,从而使航空相机镜头焦距的测量精度达到0.1%,实际成像面位置的判断准确率达到100%.

Detecting Technique for Focus Plane Information of Aerial Cameras

Detecting the focus plane information is an important prerequisite to ensure the high quality image of aerial camera. A auto-detecting system of the focus plane information is proposed, and the measuring principle,constitution and the software of system are described. The focus plane information is yielded by collimator with long focus,and the image is received by area CCD camera. Using the least square method to treat data, the precision of 0.1 percent for the focus of aerial camera lens can be attained and the accuracy of 100 percent for the situation of the real image plane can be made.