인간공학적 제품 설계를 위한 한국인 머리의 3차원 템플릿 정합 이미지 데이터베이스 개발

Abstract

Objective: A database of Korean 3D heads was developed using a template model registration method to increase its applicability for ergonomic product design. Background: A 3D scanned head database of more than 8,500 Koreans was established through the Size Korea project since 2004. While the anthropometric information of Size Korea has been used in the design of various products, 3D scan images have been rarely used because post-processing and landmarking are needed. Method: This study proposed a hybrid template model registration method consisting of steps of (1) global registration using the bounded biharmonic weight (BBW) algorithm based on 11 manually defined landmarks and (2) local optimization using the iterative closest point (ICP) algorithm. A head template containing the locations of 43 head and facial landmarks was used to create a template-registered head image database of 8,536 males and females (age: 7 to 77) of Korean civilians. Results: The template-registered images of Korean heads including the 43 anthropometric landmarks for anthropometric measurement of head dimensions were generated. The template-registered heads satisfy high correspondence in terms of the mesh structure. Conclusion: This study proposed a method of template model registration for the head and a database containing 8,536 template-registered heads was established by applying the proposed method. Application: The head database would be applied for anthropometric measurement of the head, analysis of a head sizing system, development of representative head models, analysis of shape variation, virtual evaluation of head wearable products, and design of ergonomic products such as medical masks, goggles, prosthetics, personal protective equipment, and sportswear, which require good fit and comfort.