不同观测点对应像素的几何求解

Geometric Solving for Correspondence Pixel of Different Observa tion Points

对应性求解是立体视觉技术中的关键技术之一。文中论述了一种简便易行的对应性求解方法——几何求解法。几何求解法是利用两条测量线相交于被观测点的光学交汇测量原理 ,得出空间直线方程。由于两视点、物点、两像点共面 (视平面 ) ,可得画面方程 ;加入一些约束条件经过坐标转换 ,就可以得到对应像素的坐标值。文中给出了工程应用情况和实践结果。

The correspondence problem is one of the key technologi es in the stereovision. In this paper,a simple solving method for correspondenc e problem——the geometric solving method is presented. It uses the optical cros s c onvergence theory,where two optical measuring lines intersect at the substance point,to induce a space straight line equation. Because of two watching points , the substance point and two image points are coplanar (watch plane),so obtainin g the watch plane equation adding some restrict conditions and converting their coordinate, we can acquired the coordinate value of the correspondence pixel. I ts application to engineering is given.