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Resolving Reflection and Resolution in 3D Imaging of Fresh Bone
Author(s) -
Imran Rabbia,
Rogers Tracy L.
Publication year - 2020
Publication title -
journal of forensic sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.715
H-Index - 96
eISSN - 1556-4029
pISSN - 0022-1198
DOI - 10.1111/1556-4029.14136
Subject(s) - reflection (computer programming) , diffuser (optics) , light reflection , resolution (logic) , scanner , optics , materials science , high resolution , computer vision , biomedical engineering , computer science , artificial intelligence , light source , optoelectronics , geology , medicine , remote sensing , physics , programming language
Structured light scanning is a noninvasive, accurate, and cost‐effective 3D imaging technique, but due to reflection issues is yet to be utilized for tool mark analysis on fresh bone. During imaging, reflection from shiny surfaces, such as greasy bone, disrupts image formation. This study tested the David SLS ‐1 scanner's ability to image saw marks and explored six strategies to reduce reflection by [1] dulling the surface or [2] altering the projected light. The surface was dulled by freezing, talcum powder, dulling spray, or compressed air. The projected light was altered with a diffuser or limited to single pattern‐coded. Results demonstrated that the resolution was insufficient for capturing minute details of striae. All six tests failed to reduce reflection sufficiently to produce complete images, but projecting vertical pattern‐coded light showed the most promise. Future research is required concentrating on enhancing resolution and exploring the role of pattern‐coded light in reducing reflection.