一种有效的双目视觉动态检校方法

针对采用普通视频CCD摄像机进行立体动态量测,存在镜头畸变差大、图像分辨率低、有效焦距不确定等问题，提出了一种利用物方空间已知几何关系，解决该问题的方法与计算步骤，这其中包括：像方特征点线的实时自动提取；像点坐标的自动解算量测；摄像机成像（含畸变差）数学模型的建立；通过三维直接线性变换法进行CCD摄像机内外方位元素的解求及物方空间点的获取等内容。实验结果表明该方法基本适用于对精度要求不高的动态量测中。

An Effective Approach of Binocular Dynamic Calibration

Aim at binocular dynamic measurement from image sequence,using inexpensive currently CCD cameras with the elements of interior orientation are unknown and unstable, lower image resolution, higher lens distortion of objective, etc,a new method is proposed. It includes auto-extraction of feature lines of image side,automatic analysis of intersections of detected lines image point coordinate,mathematic model of camera imaging (with lens distortion of objective), and object points acquisition.The results show that the proposed approach is basic applicable to lower precision track measurement