2024 Volume 65 Issue 7 Pages 500-513
To obtain natural standing shapes without shoulder joint abduction motion, upper body shapes in a natural standing posture were estimated from 3D standing posture of 3D shape data using the morphing method, and the accuracy of those estimates was verified. 3D upper body shape data from 71 female subjects were used. Average shapes of 3D standing posture shapes and measured natural standing posture shapes were generated, and changes between average shapes in both postures were calculated. Changes were added to 3D standing posture shapes of individuals to generate estimated natural standing posture shapes. To verify accuracy, dimensions, regression analysis of vertex coordinate values, the distance between overlapping 3D shapes and cross-sectional shapes were compared. Although the arms tend to be misaligned, this method of estimation reproduced the body shape in a natural standing position while retaining the characteristics of individual body types.
