英语语法分析

The 3-d measurement system of free-form surface is made up with single CCD video cameral by employing line-structured laser.

采用线结构光和单ccd摄像机构成自由曲面三维测量系统。

The key problems such as cameral calibration, characteristics obtaining and matching, image processing and 3D information calculation etc.

本文系统研究了立体视觉三维测量中摄像机定标、特征点的提取与匹配、图像处理和三维计算等关键技术。

Therefore, the technique, which the sequence track images are taken by non-metric digital cameral for surveying the track smoothness, is feasible.

由此可见利用非量测数码相机获取序列轨道影像进行轨道平顺性检测，技术可行。