三维测量法在体表损伤法医学鉴定中的研究及应用  

Research and application of 3D measurement technology in forensic identification of body surface injuries

作　　者：庞宏兵[1] 龚群[2] 蔡起剑 徐林苗[2] Pang Hongbing;Gong Qun;Cai Qijian;Xu Linmiao(Criminal Investigation Detachment,Ningbo Public Security Bureau,Ningbo 315000,Zhejiang;Criminal Investigation Team of Zhejiang Provincial Public Security Department,Hangzhou 310009,Zhejiang;Zhejiang Angelcomm Technology Co.,Ltd.,Hangzhou 310008,Zhejiang)

机构地区：[1]宁波市公安局刑侦支队,浙江宁波315000 [2]浙江省公安厅刑侦总队,浙江杭州310009 [3]浙江安正科技股份有限公司,浙江杭州310008

出　　处：《中国法医学杂志》2021年第5期515-519,共5页Chinese Journal of Forensic Medicine

摘　　要：目的通过三维扫描技术法,实现精确体表损伤瘢痕的表面积与长度,探讨其法医学鉴定中的应用价值。方法采用定制的结构光三维扫描仪采集体表损伤三维数据,通过多视角正交法点选损伤区域,跨网格抗锯齿优化,自动计算表面积。结果测量结果对比工业级Geomagic Studio在同一标准件扫描和计算误差在毫米小数点后两位。结论采用三维测量对体表损伤表面积测量结果精确可靠,并可适用于不规则的器官和表面损伤测量,提高法医学鉴定的准确性。Objective To obtain accurate surface area and length of scars by three-dimensional scanning technology,and to explore its application value in forensic identification. Methods A customized structured light three-dimensional scanner was used to collect the three-dimensional data of body surface damage. The damage area was selected by the algorithm multi-view orthogonal method, the cross-grid anti-aliasing optimization was performed, and the surface area was automatically calculated. Results The measurement result is compared with the results of industrial-grade Geomagic Studio.The scanning and calculation error of the same standard part is less than 0.1 mm. Conclusion Using three-dimensional measurement to measure the surface area of body surface damage is accurate and reliable, and can be applied to irregular organs and surface damage measurement to improve the accuracy of forensic identification.

关 键 词：三维测量 体表损伤 法医鉴定 表面积 

分 类 号：R349.69[医药卫生—基础医学]