在激光扫描大型三维曲面测量中， 激光光斑中心的准确定位是提高测量分辨力的关键。
The precise location of the laser spot center is an important step to raise the measurement resolution in large 3-D surface profile measuring system of laser scanning.
对投影光栅方法获得的位相调制空间载波图进行二维数字图象处理，实现了散射物体的三维曲面测量。
The shape measuring of a diffuse abject is conducted based on 2-D digital image processing phase modulated fringe pattern acquired by the projection of Ronchi rulings.
本文研究了逆向工程的关键技术之一——自由曲面的三维测量技术。
D measurement of free surface, one of key technology of Reverse Engineering, is described in this paper.
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