Supplementary Video 4: FARO SCENE VR Precision Measurement of Bloodstain Evidence in Reconstructed Indoor Crime Scene

This video is a supplementary material for the paper: "Experimental Comparison of Three-Dimensional Reconstruction Techniques for Indoor Bloodstain Crime Scene: Implications for Crime Scene Preservation and Investigator Training" (Korean Journal of Forensic Sciences, KSFS, ISSN 1598-0715). - The video demonstrates the use of FARO SCENE VR environment with a Head-Mounted Display (HMD) for precise spatial measurement in a reconstructed indoor crime scene. The footage shows the distance measurement feature applied to bloodstain evidence, including a flow bloodstain length measurement consistent with the actual measured value of 0.938m. This functionality illustrates the potential for presenting quantitative spatial and physical evidence information in forensic and legal contexts. - Note: Due to the large data volume of point cloud datasets, frame rate degradation and rendering latency were observed during real-time VR visualization in this study, even on a standard laptop. For smooth VR operation, FARO recommends a minimum system configuration of a dedicated NVIDIA GPU (≥4 GB VRAM, OpenGL 4.3+, DirectX 11), ≥32 GB RAM, ≥4 physical cores at 3 GHz, and ≥512 GB SSD storage (FARO Technologies, 2025). - This work was supported by the National Forensic Service (NFS2024FSA03).