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Quantitative assessment of human body shape using Fourier analysis.

Authors
Friess-M; Rohlf-FJ; Hsiao-H
Source
IS&T/SPIE's 16th Annual Symposium, Electronic Imaging, Science and Technology, January 18-22, 2004, San Jose, CA, 2004 Jan; 5302:117-124
NIOSHTIC No.
20026056
Abstract
Fall protection harnesses are commonly used to reduce the number and severity of injuries. Increasing the efficiency of harness design requires the size and shape variation of the user population to be assessed as detailed and as accurately as possible(3). In light of the unsatisfactory performance of traditional anthropometry with respect to such assessments(7), we propose the use of 3D laser surface scans of whole bodies and the statistical analysis of elliptic Fourier coefficients. Ninety-eight male and female adults were scanned. Key features of each torso were extracted as a 3D curve along front, back and the thighs. A 3D extension of Elliptic Fourier analysis(4) was used to quantify their shape through multivariate statistics. Shape change as a function of size (allometry) was predicted by regressing the coefficients onto stature, weight and hip circumference. Upper and lower limits of torso shape variation were determined and can be used to redefine the design of the harness that will fit most individual body shapes. Observed allometric changes are used for adjustments to the harness shape in each size. Finally, the estimated outline data were used as templates for a free-form deformation of the complete torso surface using NURBS models (non-uniform rational B-splines).
Keywords
Quantitative-analysis; Injuries; Injury-prevention; Safety-measures; Anthropometry; Models; Humans; Safety-monitoring; Safety-research
Publication Date
20040118
Document Type
Conference/Symposia Proceedings
Email Address
mfriess@anthrotech.net
Editors
Corner-BD; Li-P; Pargas-RP
Funding Type
Construction
Fiscal Year
2004
NTIS Accession No.
NTIS Price
ISSN
0277-786X
NIOSH Division
DSR
Priority Area
Disease and Injury: Traumatic Injuries
Source Name
IS&T/SPIE's 16th Annual Symposium, Electronic Imaging, Science and Technology
State
WV; OH; NY
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