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Three-Dimensional Body Scan Data Analysis

Body Size and Shape Dependence of Ease Values for Pants' Fit

Cornell University, ap256{at}cornell.edu

Susan P. Ashdown

Cornell University

Three-dimensional body scanning technology was used to analyze fit of women's pants and to measure garment ease at various locations. Special test pants constructed with adjustable Velcro sections were used to provide custom fit for each study participant. Twenty-four subjects, ages 35 to 55, represented three body shape groups (straight, medium, curvy) determined by the hip-to-waist circumferences ratio, and four size groups covering Misses size range 4 to 16. Scans of a subject wearing minimal clothing and of the same subject wearing the test pant, adjusted by the researchers for best fit in a standing position, were compared. The differences between the pant and body scans (ease) were determined for circumference, slice area, surface area, and volume measurements at various locations and analyzed for size and shape dependence. Decrease in percent ease differences with increasing size was observed for several variables; no clear dependence on shape was found. Size dependences were used to propose a way of pattern grading with grade intervals variable by size and body location.

Key Words: 3D body scan • apparel fit • garment ease • sizing • body shape

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