TY - JOUR
T1 - Development of a 3-D measurement and evaluation system for facial forms with a liquid crystal range finder
AU - Yamada, Tomohiro
AU - Sugahara, Toshio
AU - Mori, Yoshihide
AU - Minami, Katsuhiro
AU - Sakuda, Masayosi
PY - 1999/2
Y1 - 1999/2
N2 - A 3-D measurement and evaluation system for facial forms was developed with a liquid crystal range finder (LCRF). Its mechanical resolution was ~0.4 mm, and it was capable of measuring > 30000 points from the entire facial surface in one second. An original program was developed to identify facial landmarks using not only linear distances, but also 3D-curvatures and discriminant analysis of the RGB data. With this program, the 3-D identification of anthropometrical points became possible with high accuracy. Due to the rapidity of the measuring apparatus and morphological evaluation system, it became possible to analyze the facial forms of infants such as cleft lip patients three dimensionally, without any sedation. Therefore, 97 normal infants (mean: 4.3 months of age) were measured and analyzed with this system. A cleft lip infant was measured and compared with the normal infants before and after cleft lip surgery, and the improved points and remaining problems were clearly recognized.
AB - A 3-D measurement and evaluation system for facial forms was developed with a liquid crystal range finder (LCRF). Its mechanical resolution was ~0.4 mm, and it was capable of measuring > 30000 points from the entire facial surface in one second. An original program was developed to identify facial landmarks using not only linear distances, but also 3D-curvatures and discriminant analysis of the RGB data. With this program, the 3-D identification of anthropometrical points became possible with high accuracy. Due to the rapidity of the measuring apparatus and morphological evaluation system, it became possible to analyze the facial forms of infants such as cleft lip patients three dimensionally, without any sedation. Therefore, 97 normal infants (mean: 4.3 months of age) were measured and analyzed with this system. A cleft lip infant was measured and compared with the normal infants before and after cleft lip surgery, and the improved points and remaining problems were clearly recognized.
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U2 - 10.1016/S0169-2607(98)00064-9
DO - 10.1016/S0169-2607(98)00064-9
M3 - Article
C2 - 10092030
AN - SCOPUS:0033082329
SN - 0169-2607
VL - 58
SP - 159
EP - 173
JO - Computer Methods and Programs in Biomedicine
JF - Computer Methods and Programs in Biomedicine
IS - 2
ER -