Three dimensional surface analyses of pubic symphyseal faces of contemporary Japanese reconstructed with 3D digitized scanner

Biwasaka, Hitoshi; Sato, Kei; Aoki, Yasuhiro; Kato, Hirokazu; Maeno, Yoshitaka; Tanijiri, Toyohisa; Fujita, Sachiko; Dewa, Koji

doi:10.1016/j.legalmed.2013.02.003

Cited by 19 publications

(19 citation statements)

References 15 publications

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“…The promise of this continuing work is supported by the recently published research of Biwasaka et al. , who report an association between mean surface curvature and age for both males and females.…”

Section: Discussionmentioning

confidence: 82%

Modeling Bone Surface Morphology: A Fully Quantitative Method for Age‐at‐Death Estimation Using the Pubic Symphysis

Slice

Algee‐Hewitt

2015

Journal of Forensic Sciences

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The pubic symphysis is widely used in age estimation for the adult skeleton. Standard practice requires the visual comparison of surface morphology against criteria representing predefined phases and the estimation of case-specific age from an age range associated with the chosen phase. Known problems of method and observer error necessitate alternative tools to quantify age-related change in pubic morphology. This paper presents an objective, fully quantitative method for estimating age-at-death from the skeleton, which exploits a variance-based score of surface complexity computed from vertices obtained from a scanner sampling the pubic symphysis. For laser scans from 41 modern American male skeletons, this method produces results that are significantly associated with known age-at-death (RMSE = 17.15 years). Chronological age is predicted, therefore, equally well, if not, better, with this robust, objective, and fully quantitative method than with prevailing phase-aging systems. This method contributes to forensic casework by responding to medico-legal expectations for evidence standards.

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Section: Discussionmentioning

confidence: 82%

Modeling Bone Surface Morphology: A Fully Quantitative Method for Age‐at‐Death Estimation Using the Pubic Symphysis

Slice

Algee‐Hewitt

2015

Journal of Forensic Sciences

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“…Only a few studies can be cited: Biwasaka et al. (), Villa et al. (), Slice & Algee‐Hewitt () and Stoyanova et al.…”

Section: The Application Of Mathematical Methods On 3d Modelsmentioning

confidence: 99%

“…The first two studies – Biwasaka et al. () and Villa et al. () – mathematically quantified the observable morphological changes used for age estimation of the pubic bone (both studies) and the auricular surface (only Villa et al.…”

Section: The Application Of Mathematical Methods On 3d Modelsmentioning

confidence: 99%

Evaluating osteological ageing from digital data

2016

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SummaryAge at death estimation of human skeletal remains is one of the key issues in constructing a biological profile both in forensic and archaeological contexts. The traditional adult osteological methods evaluate macroscopically the morphological changes that occur with increasing age of specific skeletal indicators, such as the cranial sutures, the pubic bone, the auricular surface of the ilium and the sternal end of the ribs. Technologies such as CT and laser scanning are becoming more widely used in anthropology, and several new methods have been developed. This review focuses on how the osteological age-related changes have been evaluated in digital data. Firstly, the 3D virtual copies of the bones have been used to mimic the appearance of the dry bones and the application of the traditional methods. Secondly, the information directly extrapolated from CT scan has been used to qualitatively or quantitatively assess the changes of the trabecular bones, the thickness of the cortical bones, and to perform morphometric analyses. Lastly, the most innovative approach has been the mathematical quantification of the changes of the pelvic joints, calculating the complexity of the surface. The importance of new updated reference datasets, created thanks to the use of CT scanning in forensic settings, is also discussed.

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“…Although priority was given to the various advantages of a 3D capture system and 3D digital imaging technologies such as those described above and they were adopted in this study, we must always keep in mind the disadvantage in each actual forensic case. In recent years, X-ray computed tomography technologies have been used in skeletal morphology research [39][40][41]. These technologies provide positional data of the face surface and skeleton of a living person that are more anatomically correct.…”

Section: Discussionmentioning

confidence: 99%

Photo anthropometric variations in Japanese facial features: Establishment of large-sample standard reference data for personal identification using a three-dimensional capture system

Ogawa

Wada

Taniguchi

et al. 2015

Forensic Science International

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Three dimensional surface analyses of pubic symphyseal faces of contemporary Japanese reconstructed with 3D digitized scanner

Cited by 19 publications

References 15 publications

Modeling Bone Surface Morphology: A Fully Quantitative Method for Age‐at‐Death Estimation Using the Pubic Symphysis

Modeling Bone Surface Morphology: A Fully Quantitative Method for Age‐at‐Death Estimation Using the Pubic Symphysis

Evaluating osteological ageing from digital data

Photo anthropometric variations in Japanese facial features: Establishment of large-sample standard reference data for personal identification using a three-dimensional capture system

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