Multispectral photography offers a wide range of applications for forensic investigations. It is commonly used to detect latent evidence and to enhance the visibility of findings. Additionally, three-dimensional (3D) full-body documentation has become much easier and more affordable in recent years. However, the benefits of performing 3D imaging beyond the visible (VIS) spectrum are not well known, and the technique has not been widely used in forensic medical investigations. A multicamera setup was used to employ multispectral photogrammetry between 365 and 960 nm in postmortem investigations. The multicamera setup included four modified digital cameras, ultraviolet (UV) and near-infrared (NIR) light sources and supplemental lens filters. Full-body documentation was performed in conjunction with the use of a medical X-ray computed tomography (CT) scanner to automate the imaging procedure. Textured 3D models based on multispectral datasets from four example cases were reconstructed successfully. The level of detail and overall quality of the 3D reconstructions varied depending on the spectral range of the image data. Generally, the NIR datasets showed enhanced visibility of vein patterns and specific injuries, whereas the UV-induced datasets highlighted foreign substances on the skin. Three-dimensional multispectral full-body imaging enables the detection of latent evidence that is invisible to the naked eye and allows visualization, documentation and analysis of evidence beyond the VIS spectrum.

多光谱摄影为法医调查提供了广泛的应用。它通常用于检测潜在证据并提高发现的可见性。此外，近年来，三维 (3D) 全身文档变得更容易且更实惠。然而，在可见 (VIS) 光谱之外执行 3D 成像的好处并不为人所知，并且该技术尚未广泛用于法医调查。多相机设置用于在尸检调查中采用 365 和 960 nm 之间的多光谱摄影测量。多相机设置包括四个改进的数码相机、紫外 (UV) 和近红外 (NIR) 光源以及补充镜头滤光片。全身记录与使用医学 X 射线计算机断层扫描 (CT) 扫描仪一起进行，以自动化成像过程。基于来自四个示例案例的多光谱数据集的纹理 3D 模型已成功重建。3D 重建的细节水平和整体质量取决于图像数据的光谱范围。一般来说，近红外数据集显示出静脉图案和特定损伤的可见性增强，而紫外线诱导的数据集突出了皮肤上的异物。三维多光谱全身成像能够检测肉眼不可见的潜在证据，并允许对 VIS 光谱之外的证据进行可视化、记录和分析。基于来自四个示例案例的多光谱数据集的纹理 3D 模型已成功重建。3D 重建的细节水平和整体质量取决于图像数据的光谱范围。一般来说，近红外数据集显示出静脉图案和特定损伤的可见性增强，而紫外线诱导的数据集突出了皮肤上的异物。三维多光谱全身成像能够检测肉眼不可见的潜在证据，并允许对 VIS 光谱之外的证据进行可视化、记录和分析。基于来自四个示例案例的多光谱数据集的纹理 3D 模型已成功重建。3D 重建的细节水平和整体质量取决于图像数据的光谱范围。一般来说，近红外数据集显示出静脉图案和特定损伤的可见性增强，而紫外线诱导的数据集突出了皮肤上的异物。三维多光谱全身成像能够检测肉眼不可见的潜在证据，并允许对 VIS 光谱之外的证据进行可视化、记录和分析。NIR 数据集显示静脉图案和特定损伤的可见性增强，而紫外线诱导的数据集突出了皮肤上的异物。三维多光谱全身成像能够检测肉眼不可见的潜在证据，并允许对 VIS 光谱之外的证据进行可视化、记录和分析。NIR 数据集显示静脉图案和特定损伤的可见性增强，而紫外线诱导的数据集突出了皮肤上的异物。三维多光谱全身成像能够检测肉眼不可见的潜在证据，并允许对 VIS 光谱之外的证据进行可视化、记录和分析。