Corcoran K A, Mundorff A Z, White D A, Emch W L
Oak Ridge National Laboratory, United States; The University of Tennessee, United States.
The University of Tennessee, United States.
Forensic Sci Int. 2018 Aug;289:320-328. doi: 10.1016/j.forsciint.2018.05.038. Epub 2018 Jun 20.
Unmarked graves are difficult to locate once the ground surface no longer shows visible evidence of disturbance, posing significant challenges to missing person investigations. This research evaluates the use of terrestrial LIDAR point data for measuring localized elevation change at human grave surfaces. Three differently sized human graves, one control-pit, and surrounding undisturbed ground, were scanned four times between February 2013 and November 2014 using a tripod-mounted terrestrial laser scanner. All the disturbed surfaces exhibited measurable and localized elevation change, allowing for separation of disturbed and undisturbed ground. This study is the first to quantify elevation changes to human graves over time and demonstrates that terrestrial LIDAR may contribute to multi-modal data collection approach to improve unmarked grave detection.
一旦地表不再有明显的扰动迹象，无标记坟墓就很难找到，这给失踪人员调查带来了重大挑战。本研究评估了使用地面激光雷达点数据来测量人类坟墓表面局部高程变化的情况。在2013年2月至2014年11月期间，使用三脚架安装的地面激光扫描仪对三个不同大小的人类坟墓、一个对照坑以及周围未受扰动的地面进行了四次扫描。所有受扰动的表面都呈现出可测量的局部高程变化，从而能够区分受扰动和未受扰动的地面。本研究首次对人类坟墓随时间的高程变化进行了量化，并表明地面激光雷达可能有助于采用多模态数据收集方法来改进无标记坟墓的探测。
