CCD摄像机面阵几何检校的自动化方法

利用CCD摄像机实现目标点的高精度定位和量测是计算机机器视觉和实时摄影测量系统的基本手段。而CCD摄像机获取的目标影像在传输的过程中受到几何精度的限制。所以,目标影像从CCD传感器到存储器的高精度的辐射和几何传输是CCD摄像机检校的基本问题。作者在一新研制的解析测图仪上,设计了一套CCD摄像机自动检校的软件系统。本文对该软件系统进行了介绍,并通过检校试验,证明了其可靠性和实用性。

Automation of Geometric Calibration of CCD Camera Array

With the help of CCD images,realization of high precision positioning and mea-surement has become the basic standard for machine vision and real time photogrammetrysystem. But deformation and other degradation occurring during transmission are major lim-iting factors of the precision attainable with most current CCD cameras and framegrabbers.So precise radiometric and geometric transmission of images from CCD sensor to memory is a fundamental aspect of CCD camera calibration. The geommetric calibration system of theCCD camera based on the analytical plotter which SOKKIA researched and developed is dis-cussed. And some image processing algorithms are used in the system. The reliability and va-lidity are also discussed. The experimental results of the calibration of the CCD array will betaken as an important quality index for CCD evaluation.