Abstract
The front and back surfaces of torsos of 21 young Japanese women were measured three dimensionally using GRASP (Grating Projection System for Profiling). Measuring were repeated three times for each surface on which five measuring points were marked. The gaps of 3-D coordinate values of measuring points among the three time trials were quantified as translation, rotation needed for adjusting the coordinates of the three time trials and residuals after adjusting. Translations averaged 17 mm for Z-axis (front-back), 8 mm for X-axis (right-left) and 2 mm for Y-axis (up-down) of 3-D coordinates at back neck point. A large part of the gaps among the trials could be compensated by translation and rotation. The relatively larger differences among the trials seen for inter-points distance were 4 mm in the body part of waist to armscye. These quantified residuals and differences among trials are supposed to be physiological error and the tolerance of common somatometry. The results of this study suggested a possibility of measuring human torso in parts and putting together into the total for the purpose of making dress dummies for apparel manufacturing use.
