University of Zurich, 8057 Zurich, Switzerland; University of Bern, 3012 Bern, Switzerland.
Institute of Forensic Medicine, University of Zurich, Winterthurertrasse 190/52, 8057 Zurich, Switzerland.
Forensic Sci Int. 2022 Jun;335:111286. doi: 10.1016/j.forsciint.2022.111286. Epub 2022 Mar 28.
Physical injuries caused by interpersonal violence or accidents are usually documented with photographs. In addition to standard injury photography using 2D photographs, the Institute INSTITUT NAME BLINDED FOR REVIEW uses a Botspot Botscan ® multi-camera device (Photobox; Aniwaa Ltd, Berlin, Germany) that allows for 3D documentation of a subject. The Photobox contains 70 cameras positioned at different heights looking at a central platform. Within a fraction of a second, all cameras are activated and acquire the necessary images for 3D documentation. In previous studies by Michienzi et al. (2018), the geometric correctness of 3D documented injuries was analyzed. While their work concentrated solely on artificial injuries and their dimensions, the work presented in this study analyzes whether the Photobox allows for accurate medical interpretation of injuries, by forensic pathologists. To perform this analysis, 40 datasets of a variety of real cases were processed to 3D models. The created 3D models were then examined by forensic pathologists on 2D computer screens, and the findings were compared with the original reports. While the aim of this work was to assess whether examinations based on a 3D model allows comparable results to immediate examinations of the subject, the results showed that examinations based on a 3D model are 85% accurate when comparing with physical examinations. This indicates that 3D models allow for reasonably accurate interpretation, and it is possible that accuracy might increase with improved equipment and better trained personnel.
由人际暴力或事故引起的身体伤害通常通过照片来记录。除了使用二维照片进行标准损伤摄影外,INSTITUT NAME BLINDED FOR REVIEW研究所还使用 Botspot Botscan ®多相机设备(Photobox;Aniwaa Ltd,柏林,德国)对主体进行 3D 记录。Photobox 包含 70 个摄像头,分别位于不同的高度,以观察中央平台。在一瞬间,所有的摄像头都会被激活,获取 3D 记录所需的图像。在 Michienzi 等人之前的研究中(2018),分析了 3D 记录损伤的几何正确性。虽然他们的工作仅专注于人工损伤及其尺寸,但本研究分析了 Photobox 是否允许法医病理学家对损伤进行准确的医学解释。为了进行这项分析,对 40 个不同真实案例的数据集进行了 3D 建模处理。然后,法医病理学家在 2D 计算机屏幕上对创建的 3D 模型进行检查,并将结果与原始报告进行比较。虽然这项工作的目的是评估基于 3D 模型的检查是否可以获得与对主体进行即时检查相当的结果,但结果表明,与物理检查相比,基于 3D 模型的检查的准确率为 85%。这表明 3D 模型允许进行合理准确的解释,并且随着设备的改进和人员培训的加强,准确性可能会提高。