面向重建的结构光中心快速提取方法

在逆向工程的非接触光学测量系统中,准确、快速提取光条中心是保证获取实物表面形状数据精度和算法实时性的关键因素。根据激光强度符合高斯分布和光条边界的连续性特点,对传统的光条中心提取方法进行改进。考虑光条在图像中的形状和分布特征,通过从图像的不同位置和方向扫描得到光条中心,并比较了不同扫描方法所用的时间。利用本文方法重建了动车轮毂的三维轮廓。实验结果表明,本文方法比传统方法有明显提高,具有较强的实用性。

Reconstruction Based on Real-Time Extracting Light Strip Center Method

In the non-contact optical measurement system in reverse engineering, physical surface data accurate and rapid extraction laser stripe is a key factor to guarantee system precision and real-time of algorithms. The paper based on the laser intensity distribution conforms to the Gaussian distribution and the continuity border of laser stripe, improved the traditional laser stripe center extraction method, combined with the shape and distribution of the light in the image, Through scanning laser stripe center from a different position and orientation of the image and compare the times of different scanning method. Apply this method to rebuilding three-dimensional contour of the train hubcaps. Experimental results show that the method is significantly improved than the traditional method. This method has a strong practical.