一种鲁棒的可视外壳生成算法*

针对各种传统可视外壳生成算法中数据冗余、精确度低、健壮性不足等问题, 提出了一种新的可视外壳生成算法，即采用加权线段求交、线段集合中心线性过滤、多边形边界检测等方法重建物体模型。与传统方法相比，本算法能够更稳定地计算线段交集，表面边界提取更加准确，重建结果精确逼近真实物体。实验表明, 通过该算法计算的物体可视外壳能够更好地逼近真实模型，精度高。

Robust visual hull computation method

The traditional volumetric visual hull generating methods were not applicable to huge-volume objects due to redundant calculations.The methods based on segments intersections were sensitive to input perturbations and were hence lack of robustness.This paper represented a new algorithm for reconstructing an object's visual hull from its silhouette.Compared with traditional methods,the approach employs the maximum overlap line segments intersection to calculate line segment intersection stably.In addition,the...