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Variation in the Measurement of Cranial Volume and Surface Area Using 3D Laser Scanning Technology
Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
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2010 (English)In: Journal of Forensic Sciences, ISSN 0022-1198, E-ISSN 1556-4029, Vol. 55, no 4, 871-876 p.Article in journal (Refereed) Published
Abstract [en]

Three-dimensional (3D) laser scanner models of human crania can be used for forensic facial reconstruction, and for obtaining craniometric data useful for estimating age, sex, and population affinity of unidentified human remains. However, the use of computer-generated measurements in a casework setting requires the measurement precision to be known. Here, we assess the repeatability and precision of cranial volume and surface area measurements using 3D laser scanner models created by different operators using different protocols for collecting and processing data. We report intraobserver measurement errors of 0.2% and interobserver errors of 2% of the total area and volume values, suggesting that observer-related errors do not pose major obstacles for sharing, combining, or comparing such measurements. Nevertheless, as no standardized procedure exists for area or volume measurements from 3D models, it is imperative to report the scanning and postscanning protocols employed when such measurements are conducted in a forensic setting.

Place, publisher, year, edition, pages
2010. Vol. 55, no 4, 871-876 p.
Keyword [en]
forensic science, forensic anthropology, 3D laser scanning, digital morphometrics, cranial morphology, digital imaging
National Category
Medical and Health Sciences
Research subject
Forensic Medicine
URN: urn:nbn:se:su:diva-50104DOI: 10.1111/j.1556-4029.2010.01380.xISI: 000279448200003OAI: diva2:382276
authorCount :5Available from: 2010-12-30 Created: 2010-12-21 Last updated: 2012-01-02Bibliographically approved

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