【摘要】 提出一种从三维散乱测量点集中提取圆柱体的方法.该方法利用圆柱体的高斯图特性将提取过程分为两个阶段:提取圆柱体的轴线方向向量以及已知轴线方向向量的圆柱体;然后在各个阶段中利用遗传算法进行特征参数的提取.实验证明,该方法能准确地从散乱点集中提取圆柱体.更多还原

【Abstract】 Extracting geometric primitives is an important task in the reverse engineering. We propose a new method for extracting cylinders from an unorganized set of 3D points. The originality of this approach is to separate the extraction problem into two distinct steps based on the speciality of the cylindrical Gaussian image. The first step consists in extracting the direction of the cylinders in the Gaussian image using a genetic algorithm. This yields a subset of 3D points along with a direction. In the second step, cylinders of known direction are extracted in the corresponding subset of points. Experimental results show that the cylinder scheme is effective and robust.更多还原