TY - GEN
T1 - Facial shape variation of U.S. respirator users
AU - Zhuang, Ziqing
AU - Slice, Dennis
AU - Benson, Stacey
AU - Landsittel, Douglas
AU - Viscusi, Dennis
PY - 2009
Y1 - 2009
N2 - The National Institute for Occupational Safety and Health (NIOSH) conducted a head-and-face anthropometric survey of diverse, civilian respirator users. Of the 3,997 subjects measured using traditional anthropometric techniques, surface scans and 26 three-dimensional (3-D) landmark locations were collected for 953 subjects. The objective of this study was to analyze the size and shape variation of the survey participants using 3-D Generalized Procrustes Analysis (GPA) in order to quantify those facial features that may be relevant to respirator fit using Principal Component Analysis (PCA). The first four principal components (PC) account for 49% of the total sample variation. The first PC indicates that overall size is an important component of facial variability. The second PC accounts for long and narrow or short and wide faces. Longer narrow orbits versus shorter wider orbits can be described by PC3, and PC4 represents variation in the degree of ortho/prognathism with positively scoring individuals having longer, wider, and more projecting lower jaws than negatively scoring individuals. Further study will investigate the correlation between respirator fit and these PCs.
AB - The National Institute for Occupational Safety and Health (NIOSH) conducted a head-and-face anthropometric survey of diverse, civilian respirator users. Of the 3,997 subjects measured using traditional anthropometric techniques, surface scans and 26 three-dimensional (3-D) landmark locations were collected for 953 subjects. The objective of this study was to analyze the size and shape variation of the survey participants using 3-D Generalized Procrustes Analysis (GPA) in order to quantify those facial features that may be relevant to respirator fit using Principal Component Analysis (PCA). The first four principal components (PC) account for 49% of the total sample variation. The first PC indicates that overall size is an important component of facial variability. The second PC accounts for long and narrow or short and wide faces. Longer narrow orbits versus shorter wider orbits can be described by PC3, and PC4 represents variation in the degree of ortho/prognathism with positively scoring individuals having longer, wider, and more projecting lower jaws than negatively scoring individuals. Further study will investigate the correlation between respirator fit and these PCs.
KW - Anthropometry
KW - Geometric morphometrics
KW - Respirators
UR - https://www.scopus.com/pages/publications/70350339506
U2 - 10.1007/978-3-642-02809-0_61
DO - 10.1007/978-3-642-02809-0_61
M3 - Conference contribution
AN - SCOPUS:70350339506
SN - 364202808X
SN - 9783642028083
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 578
EP - 587
BT - Digital Human Modeling - Second International Conference, ICDHM 2009 - Held as Part of HCI International 2009, Proceedings
T2 - 2nd International Conference on Digital Human Modeling, ICDHM 2009. Held as Part of HCI International 2009
Y2 - 19 July 2009 through 24 July 2009
ER -