Thali Michael J, Braun Marcel, Brueschweiler Walter, Dirnhofer Richard
Institute of Forensic Medicine, University of Berne, Buehlstrasse 20, CH-3012, Berne, Switzerland.
Forensic Sci Int. 2003 Apr 8;132(3):177-81. doi: 10.1016/s0379-0738(03)00021-5.
Forensic three-dimensional/computer aided design (CAD)-supported photogrammetry (FPHG) plays an important role in the field of the documentation of forensic relevant injuries; particularly so when a detailed, 3D reconstruction is necessary. This is demonstrated in the case of a patterned blunt injury to the face of a victim, which injury was subsequently proven by FPHG to have been caused by a blow from the muzzle of a soft air gun. The objects to be evaluated had to be series photographed in order to be evaluated virtually on the computer. These photo series were then analyzed with the RolleiMetric system. This system measures and calculates the spatial location of distinctive points on the objects' surfaces, and creates 3D data models of the objects. In a 3D/CAD program, the "virtual 3D model of the injury" is then compared against the "virtual 3D model of the possible injury-causing instrument". The validation of FPHG, as shown by the 3D match between certain characteristics of the muzzle form and the facial injury, demonstrates how this 3D method can be used for patterned wound documentation and analysis.
法医三维/计算机辅助设计（CAD）支持的摄影测量法（FPHG）在法医相关损伤记录领域发挥着重要作用；当需要进行详细的三维重建时尤其如此。一名受害者面部遭受有图案的钝器伤的案例证明了这一点，随后通过FPHG证实该损伤是由软气枪枪口打击所致。为了在计算机上进行虚拟评估，必须对要评估的物体进行系列拍照。然后使用罗莱测量系统对这些照片系列进行分析。该系统测量并计算物体表面独特点的空间位置，并创建物体的三维数据模型。在三维/CAD程序中，然后将“损伤的虚拟三维模型”与“可能造成损伤的器械的虚拟三维模型”进行比较。枪口形状的某些特征与面部损伤之间的三维匹配所显示的FPHG验证，证明了这种三维方法可用于有图案伤口的记录和分析。
