依据残缺不全的受害人颅骨来实现受害人3维相貌复原是刑事侦察的关键的第1步。为了真实重现受害人的3维容颜,提出了一种基于螺旋CT的3维颅骨重建影像的3维凸包软组织厚度计算方法。该方法首先通过做实验人螺旋CT,建立分民族、年龄段的统计意义上的中性人软组织厚度数据库;最后提出了基于分区和凸包的3维相貌复原重建方案。经有关部门试用和实际重建效果分析,证明该方案和软组织获取方案是有效和可行的,并达到了预期效果。该方法与已有方法相比,具有客观、快速的优点。

Based on the half-baked skull of the victim,it is most important for criminal reconnaissance to reconstruct the victim's 3D appearance.In order to reconstruct 3D appearance truly,a new method of calculating parenchyma thickness is put forward in this paper.It is mainly based on convhull method with spire CT.We can establish a statistical neutral parenchyma thickness database by nation,age phase and so on.At last,we bring forward a proposal of the 3D facial reconstruction relying on subarea and convhull.Testing by the correlative department and the analysis of the reconstructing effect,it is proved to be effective and feasible,and we have acquired the anticipative effect.This method is more objective and faster than the other existing methods.