双线阵CCD交汇测量中的自动标定方法  

Automatic Calibration in Dual Linear-CCD Camera Intersection Measuring System

作　　者：薛淑磊[1] 王泽民[1] 

机构地区：[1]西安工业大学北方信息工程学院,西安710032

出　　处：《西安工业大学学报》2008年第5期422-425,共4页Journal of Xi’an Technological University

摘　　要：针对CCD交汇测量系统中的初始标定困难、繁琐、重复误差等缺陷,提出了一种基于测量模型的自动标定方法.根据交汇测量原理,建立了测量系统的数学模型,并推导出自标定的模型.在相机焦距、倾角、光心坐标已知条件下,通过分析标定中各参量的函数关系,可利用线阵相机像元确定测量位置,精度可达到4 mm.Aimed at the shortages such as difficult and complicate initial calibration, repetitive error in the CCD intersection, a measure model based automatic calibration was presented. According to the principle of intersection measurement, a mathematic model of measurement system was established and self-calibration model was deduced. Under the given camera focal distance, incidence, photo-center coordinate, analysizing the function relationship of every parameters in calibration, the measuring position （its precision is 4 mm） can be determined by using linear array camera pixel.

关 键 词：交汇测量 线阵CCD 自动标定 光心坐标 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]