2020
DOI: 10.1111/1556-4029.14330
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Reflectance Transformation Imaging (RTI) for the Documentation of Saw Mark Characteristics

Abstract: Photography is widely accepted as a means of forensic case documentation and evaluation. In cases of criminal dismemberment digital microscopy is commonly used to assess marks left on the bone. Reflectance transformation imaging (RTI) is a computational photography technique which documents and enhances the three‐dimensional (3D) reflectance properties of the surface of an object. RTI has primarily been used in the cultural heritage sector but has recently transitioned into forensic science. This study examine… Show more

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Cited by 5 publications
(3 citation statements)
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References 19 publications
(30 reference statements)
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“…The resulting cut surfaces were examined using a Dino‐Lite Pro HR Digital Microscope (AM7000/AD7000 Series) set at 10X magnification with oblique lighting, following recommendations for the microscopic assessment of saw mark characteristics [5,9,31], followed by macroscopic assessment. Specimens were subsequently assessed using a Zeiss EVO 25 SEM set in VP mode at 15X‐18X magnification with micrographs taken in succession, overlapping images slightly so that they could be easily re‐aligned in Adobe Photoshop (CC 2018) [14] and photographed with Reflectance Transformation Imaging (RTI) software for ease of presentation of cut surface features [32]. Ten cut surface features were assessed in this study (Table 1), chosen due to their discussion in previous literature, with definitions derived from multiple sources for enhanced clarity [1,5].…”
Section: Methodsmentioning
confidence: 99%
“…The resulting cut surfaces were examined using a Dino‐Lite Pro HR Digital Microscope (AM7000/AD7000 Series) set at 10X magnification with oblique lighting, following recommendations for the microscopic assessment of saw mark characteristics [5,9,31], followed by macroscopic assessment. Specimens were subsequently assessed using a Zeiss EVO 25 SEM set in VP mode at 15X‐18X magnification with micrographs taken in succession, overlapping images slightly so that they could be easily re‐aligned in Adobe Photoshop (CC 2018) [14] and photographed with Reflectance Transformation Imaging (RTI) software for ease of presentation of cut surface features [32]. Ten cut surface features were assessed in this study (Table 1), chosen due to their discussion in previous literature, with definitions derived from multiple sources for enhanced clarity [1,5].…”
Section: Methodsmentioning
confidence: 99%
“…While not about the characteristics themselves, the authors of another paper demonstrate a way of documenting saw marks in bone [ 31 ]. They discuss the advantages of using Reflectance Transformation Imaging (RTI) when analyzing and documenting saw toolmarks in bone.…”
Section: Toolmarksmentioning
confidence: 99%
“…By changing these values with computer applications for photographic image processing, the manipulated areas of the photograph may have significantly different properties from the original environment. [9,10] Therefore, an analysis of light intensity, tone, and color is performed. Humancomputer interaction is necessary in this analysis, and the algorithms used in the analysis are just a tool.…”
Section: Experimental Partmentioning
confidence: 99%