This paper proposes a practical method of automatic acquisition cognominal points in system of binocular stereo vision , which provides necessary parameter for camera relative calibration , moreover it presents farther study in acquiring and matching feature points 提出了一种新的方法来进行双目立体视觉系统同名点的自动提取，对现有的特征点匹配方法进行了改进，通过对同名点的自动提取，获取了摄像机相对校准所必需的参数
