Computerized Human Body Modeling and Work Motion-capturing in a 3-D Virtual Clothing Simulation System for Painting Work Clothes Development

( Gin Ah Park ) 한국패션비즈니스학회 2015 패션 비즈니스 Vol.19 No.3

By studying 3-D virtual human modeling, motion-capturing and clothing simulation for easier and safer work clothes development, this research aimed (1) to categorize heavy manufacturing work motions; (2) to generate a 3-D virtual male model and establish painting work motions within a 3-D virtual clothing simulation system through computerized body scanning and motion-capturing; and finally (3) to suggest simulated clothing images of painting work clothes developed based on virtual male avatar body measurements by implementing the work motions defined in the 3-D virtual clothing simulation system. For this, a male subject``s body was 3-D scanned and also directly measured. The procedures to edit a 3-D virtual model required the total body shape to be 3-D scanned into a digital format, which was revised using 3-D Studio MAX and Maya rendering tools. In addition, heavy industry workers`` work motions were observed and recorded by video camera at manufacturing sites and analyzed to categorize the painting work motions. This analysis resulted in 4 categories of motions: standing, bending, kneeling and walking. Besides, each work motion category was divided into more detailed motions according to sub-work posture factors: arm angle, arm direction, elbow bending angle, waist bending angle, waist bending direction and knee bending angle. Finally, the implementation of the painting work motions within the 3-D clothing simulation system presented the virtual painting work clothes images simulated in a dynamic mode.

Stretch 소재를 사용한 여성용 Bodysuit 원형 설계에 관한 연구

Park, Gin-Ah The Korean Fiber Society 2003 한국섬유공학회지 Vol.40 No.6

The purposes of this study were to develop the basic block construction method for women's bodysuits using four-way stretch fabrics and to propose the fundamental particulars implemented for the block construction in the research. For these, several distinguished bodysuit pattern making methods adopted in the countries, Australia[1], France[2], UK[3]. and USA[4] and were analysed and compared to develop a more advantageous pattern making procedures for the women's bodysuits. To evaluate the developed bodysuits' functionality and comfort, the constructed samples were evaluated by the clothing pressure and fit tests. The results through the research were, in turn, interpreted into a new block construction method, which was validated as beneficial for both academic and industrial purposes with the relevant practical consultancy provided from the co-operating company[5]. The findings and suggestions throughout the research were as follows: (1) The anthropometry required for the developed bodysuit blocks in the study were: front and back bust girths, front and back waist girths, front and back hips, neck base girth, waist to waist (total crotch), nape to waist, waist to bust point, across chest and back widths individually measured; (2) Individually measured front and back bust/waist/hip girth measurements showing the differently distributed front and back proportions within the total bust/waist/hip girth measurements were respectively implemented to construct the front and back block each; (3) the length and width reduction rate: 0.9 and the front bust reduction rate: 0.85 went around the figure with the given 70% stretch fabric to allow the appropriate minus tolerances to the women's bodysuit blocks, that were applied from the beginning of the pattern construction procedures as shown in the Australian method.

The Distribution Condition and Clothing Construction Factors of the Working Clothes -Reference to the Changwon National Industrial Complex-

( Gin Ah Park ),( Hye Won Park ) 한국패션비즈니스학회 2008 패션 비즈니스 Vol.12 No.3

To investigate the actual distribution condition and clothing construction factors of the working clothes supplied to the Changwon national industrial complex, 5 major companies in machinery, automotive, industrial engineering, shipbuilding and rolling stock in the industrial complex located in Gyeongsangnam-Do were selected. The questionnaire designed for the research consisted of working clothes distribution policies in manufacturing industry and the actual conditions of the design facts, repair and maintenance of the working clothes, etc. The analysis of the clothing construction factors of the working clothes provided by 5 respondent companies were conducted in parallel. The results derived from the study were as follows: The basic types of working clothes were the blouson jacket and straight pants; safety equipments for manufacture were safety helmets, gloves, snickers, goggles, masks, ear caps, wristlets, leggings, apron, etc. The size-charts adopted by the participant companies were the small-medium-large and cm/inch measurement size systems. To solve wearer`s dissatisfaction with the garment fit, certain clothing construction factors were used, e.g.strap bands and the elastic band on a waist band. The types of fabrics used for the working clothes were mainly polyester/cotton and polyester/rayon blended ones. Moreover, to provide with more air permeability to wearers, the warp knit material was used to construct the lining and the armpit or back bodice slits. Lock, two-thread chain, safety, overedge stitches were applied with flat, lap felled, French, superimposed, lapped, bound and edge finishing seams to construct the working clothes selected.

3차원 가상착의 시스템을 활용한 남성용 커버롤 도장 작업복의 작업동작 적합성 평가

박진아 ( Gin Ah Park ) 한국패션비즈니스학회 2020 패션 비즈니스 Vol.24 No.4

It is essential to consider the heavy industrial working environment factors which are regarded as harmful to workers' health and safety and suitable work motion factors for the workers' motion while developing the work clothes for painting workers in the machinery and shipbuilding industries. This study suggests the use of 3D virtual clothing simulations as a solution to protect the human body from hazardous working conditions accompanying the development of painting work clothes and assessing the work motion performance associated with the comfort while workers wear them during the work clothes. The initial aim of the study is to examine a male avatar to run work motions simultaneously within a 3D virtual clothing simulator, secondly, to present the simulation images of coverall type men's painting work clothes with the application of two experimental painting work motions and one control motion to the avatar, and finally, to present the distance analysis images of the painting work clothes and the avatar body and air gap rates through the analysis of cross-sections of the avatar body while wearing the coverall work clothes according to the work motions. The results showed that the distance degree of painting work clothes to the avatar body for each part of the human body when performing painting work motions. Moreover, 3D virtual clothing simulations enabled the creation of a male model avatar to run painting work motions together and the painting work clothes developed were found to be suitable for the painting work motions.

기계 산업용 작업복 의복구성요인과 봉제성능 분석 -소재 및 솔기별 봉합강도와 봉합신도 중심으로-

박진아 ( Gin Ah Park ) 한국패션비즈니스학회 2010 패션 비즈니스 Vol.14 No.2

남성용 작업복 팬츠 3차원 가상착의 시뮬레이션 평가

박진아(Gin Ah Park) 한국복식학회 2013 服飾 Vol.63 No.8

The study was aimed to develop men`s working pants patterns through the computerized 3-D virtual clothing simulation system and to verify the effects of the 3-D simulated outfit by comparing it to the images of the actual outfits. The average body measurements of South Korean men aged between 30 and 39 used for the simulation in order to generate a 3-D virtual model and to realize outfits of men`s working pants for the workers in the heavy industry in South Korea. And also the preliminary questionnaire survey results on certain aspects of the working pants such as type, detailed design preference and discomforting parts were taken into consideration. Both the simulated and real images of the developed working pants were compared in terms of the ease amount according to parts of the working pants, the position of seam lines, the appearance of darts and pleats, and the effects of the fabric surface according to expertise panels` subjective 5-point scale evaluation. The results throughout the study were (1) the basic working pants item worn by subject workers were the straight one pleated pants. The most discomforting parts of the working pants were in the order of body rise, thigh, hip, waist, pants hems and knee girth. (2) the drafting factors of pants patterns differed by the men`s body features, which was related to the allocation of suppression amounts between waist and hip girths into darts and hip curve amounts on the waist line level of the pants. (3) the similarity of the virtually simulated and real images of men`s working pants resulted in an average of 4.5 to the ease of appearance, 4.6 to the seam lines, 4.1 to the fabric surface effects in a 5-point scale, which means that the two were highly alike.

국내 여성 패션모델의 3차원 가상인체 모델링을 통한 토르소형 인대 개발과 그 특성 분석

박진아(Gin Ah Park) 한국복식학회 2015 服飾 Vol.65 No.2

The study was aimed to develop a torso-type dress form representing body features of the female fashion models in Korea. To fulfill this purpose, 5 female fashion models aged between 20 and 26 having the average body measurements of professional fashion models in Korea were selected and their 3-D whole body scanned data were analysed. The 3-D whole body scanning method enabled to generate a virtual female fashion model within the CAD system by measuring the subjects` body shapes and sizes. In addition, the virtual model`s body data led the development of a standard female fashion model dress form for the efficient fashion show preparation. In order to manufacture the real dress form for female fashion models, 3-D printing technology was adopted. The consequent results are as follows: (1) the body measurements (unit: cm) of the developed dress form were: biacromion length, 36.0, bust point to bust point, 16.6, front/back interscye lengths, 32.0/33.0, neck point to breast point, 26.0, neck point to breast point to waist line, 41.5, waist front/back lengths, 34.5/38.5, waist to hip length, 24.0, bust circumference, 85.0, underbust circumference, 75.0, waist circumference, 65.0, hip circumference, 92.0. (2) the body measurements differences between the developed and existing dress forms were highlighted with the body measurements of neck point to breast point and waist to hip length. (3) the body shape features of the developed dress form showed that bust, shoulder blade, shoulder slope, abdomen and back waist line to hip line parts were more realistically manufactured.

국내 여성용 인대 사용 실태 및 만족도에 관한 연구

박진아 ( Gin Ah Park ),이혜영 ( Hye Young Lee ),최진희 ( Jin Hee Choi ) 한국의류학회 2006 한국의류학회지 Vol.30 No.3

메카트로닉스 산업용 일반 작업복 개발

박진아(Gin Ah Park) 한국복식학회 2011 服飾 Vol.61 No.9

To develop the work clothes for the employees in the mechatronics industry in South Korea, a questionnaire survey on many aspects of the work clothes such as type, color, detailed design and function preference of the subject employees has been carried out in the study. The results throughout the survey highlighted certain functions such as extensibility, thermal and air permeability of importance for the work clothing performance. To improve the discomfort caused by some work motions (i.e. squatting down, ascending/descending the stairs, raising arms), more allowances were given to the measurements (i.e. body rise + 2cm and crotch depth + 1cm for squatting down pose; thigh circumference + 1cm and knee circumference + 1cm for ascending/ descending the stairs pose; chest circumference + 5~6cm and jumper length to the level of hip circumference line for raising arms pose) for work clothes patternmaking. The evaluation of the two types of spring/summer and winter work clothes` clothing comfort and wearer mobility suggested certain points to improve the clothing performance (e.g. ventilation slits on the back pleats, arm pits and collar band of the spring/summer suit using net material and lining for the winter suit using quilted thermal materials) and wearer mobility (e.g. pants hem buckles for the easy work motion), which also enabled to fulfill the workers` work clothes design preference.

보문 : 창원국가산업공단 근로자들의 작업복 착용실태에 관한 연구 : 작업분야별 작업복 기능성 및 동작요인 중심으로

박진아 ( Gin Ah Park ),배현숙 ( Hyun Sook Bae ) 韓國衣類學會 2008 한국의류학회지 Vol.32 No.10