We develop feature recognition algorithms to extract the convex, concave, hole, strait and separate features on a volumetric solid by comparing the solid extents of neighboring voxel rows.

• 藉由比较邻近列的实体范围，我们的演算法可辨识凹、凸、洞、海峡、分离等形状特徵，也评估一些有用的特性如特徵的宽及厚度和特徵间的实体厚度。