Personalization of a Human Body Model Using Subject-Specific Dimensions for Designing Clothing Patterns

Luděk Hynčík,Tomasz Bońkowski,Gabriela Kavalířová,Hana Čechová,Viola Hampejsová,Hong Meng,Petra Špottová

doi:10.3390/app112110138

Abstract

Virtual human body models contribute to designing safe and user-friendly products through virtual prototyping. Anthropometric biomechanical models address different physiques using average dimensions. In designing, e.g., personal protective equipment, orthopedic tools, or vehicle safety systems, biomechanical models with the correct geometry and shape shall play a role. The presented study shows the variations of subject-specific anthropometric dimensions from the average of the different population groups in the Czech Republic and China as a background for the need for personalized human body models. The study measures a set of dimensions used to design clothing patterns of Czech children, Czech adolescents, Czech adults, and Chinese adults and compares them to the corresponding age average, which is represented by a scaled anthropometric human body model. The cumulative variation of the dimensions used to design the clothing patterns increases the further the population group is from the average. It is smallest for the Czech adults at 7.54 ± 6.63%; Czech adolescents report 7.93 ± 6.25%; Czech children differ be 9.52 ± 6.08%. Chinese adults report 10.86 ± 11.11%. The variations from the average of the particular dimensions used to design clothing patterns prove the necessity of having personalized subject-specific models. The measured dimensions used to design the clothing patterns serve as the personalization of particular body segments and lead to a subject-specific virtual model. The developed personalization algorithm results in the continuous body surface desired for contact applications for assessing body behavior and injury risk under impact loading.

Highlights

Virtual prototyping enables fast product design and optimization using numerical calculation [1]
Subject-specific human body models with a realistic shape are a powerful tool used in various fields including computer graphics, ergonomics, and garment and personal protective equipment (PPE) design [3]
The purpose of the paper is firstly to measure subject-specific anthropometric dimensions for different population groups, on the basis of which the personalization algorithm to develop a subject-specific human body model is developed as the second step

Summary

Introduction

Virtual prototyping enables fast product design and optimization using numerical calculation [1]. Virtual human body models play an important role in the design of humanfriendly and safe personal products [2]. Subject-specific human body models with a realistic shape are a powerful tool used in various fields including computer graphics, ergonomics, and garment and personal protective equipment (PPE) design [3]. It can be difficult to experimentally assess optimization and design tasks taking into account wide populations (EU, U.S, ASEAN) with varying anthropometry. Such a virtual approach towards injury risk assessment is useful for the development of safe products addressing autonomous driving, leisure riding, sports activities, sportswear and activewear, and many other fields

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