• 한국의류학회지
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• 제38권6호
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• pp.896-912
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• 2014

This study analyzed the reality of avatar size when it was automatically changed by different height and waist circumference inputs. This study focused on analyzing 22 of 28 avatar parts created by the 3D Clo virtual fitting program, based on the height and 'waist circumference of 2,247 woman samples from the $6^{th}$ Size Korea survey data. The 'waist back L'. and 'bishoulder L'. of the avatars were shorter than the bodies; however, the avatars' 'waist H'. and 'arm L'. were longer. Differences between the avatar and body increased in the taller groups. The body proportion of tall avatars was more distorted than small avatars. There were also some exaggerations in some circumferences. The 'bust C'. of the avatar was larger in the group with thin upper torsos; however, the 'hip C'. and 'upper arm C'. were larger in the group with thick upper torsos. The avatar torso silhouette of each somatotype was not representative of the real body silhouette as the 'hip C'. and 'bust C'. always increased together.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 추계학술대회
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• pp.355-356
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• 2012

최근에는 패션 분야에서는 컴퓨터 그래픽을 이용하여 의상을 재현하는 디지털 클로딩 기술이 활성화되고 있고, 패션의 흐름을 3D 기술과 접목하려는 연구가 많이 진행되고 있다. 패션산업에서 스마트폰을 이용하여 트렌드 변화를 정확하게 파악하여 감성적인 요인들을 추가시켜야 성공적인 패션산업을 이룰 수 있다. 기존의 3D 피팅 서비스는 아바타나 가상 거울이 설치된 매장이나 인터넷 사이트에서 가능하였다. 본 논문에서는 아이폰을 이용하여 소비자 입장에서 시간적, 체력적 소모가 줄일 수 있는 패션 피팅 서비스 시스템을 제안한다. 본 시스템은 기업측면에서는 마케팅을 쉽게 할 수 있고, 소비자는 제품을 다양하게 선택하여 어울림을 확인하였다.

• 한국의류산업학회지
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• 제22권1호
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• pp.11-24
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• 2020

This research examines pattern production of 3 men's costumes in the second half of 19th century by 3D reconstruction to reveal technical aspects of mail costumes. The steps are as follows. First, an examination of selective type according to research study. Second, a pattern analysis of 3 historical male tops of 19th century referred to 9 pattern books of the France National Library collection. Third, a categorized type analysis that referred to paintings of the Musée d'Orsay collection. Fourth, a measurement and structure research of 3 historical garments of Fashion and Textile Museum collection. Fifth, the pattern making and fitting by 3D simulation. Research discussed the following subjects and results. First, main type of men's coat can be categorized by frac, redingote, jaquette, and veston. Second, the male costume pattern contained in pattern books was researched along with distinguished silhouettes and structures; X silhouette for frac and redingote, H silhouette for jaquette, and straight box silhouette for veston. Third, based on the analysis of representative type of men's costume per period conducted previous studies, 2 redingotes and a jaquette in the museum were selected and compared to other data such as image materials. Last, the following process was conducted for reconstruction; 'Drawing diagram-Primary pattern drafting by measurement value-3D virtual fitting-Checking the fit-Modification and complement'. We also obtained a 3D virtual reconstruction and a 2D research pattern that suggested a costume pattern by each type along with 3D reconstruction that included insights for male coat techniques of 19th century France.

• 한국의류산업학회지
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• 제23권6호
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• pp.826-835
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• 2021

The purpose of this study was to compare the similarity between actual and virtual pants using a virtual 3D CLO program. A subject corresponding to the average size of a women in her twenties was selected and an avatar with the same specifications was produced. Silhouettes of the pants were classified into trousers, slacks, and wide pants and images of actual and virtual pants were evaluated from the front, side, and back. The results were as follows: Overall, the resemblance of the trousers was evaluated higher than that of other pants. The average similarity of trousers was 4.20 at the front, 3.98 at the side, and 4.17 at the back, which was much like the actual clothing. In contrast, that of the slacks was 3.62, 3.73, and 3.79 and of the wide pants was 3.81, 3.53, and 3.97. The similarity between the actual and virtual clothing was relatively well reproduced when the shape of the pants was like the silhouette of the human body. However, if the pants were tight or loose, virtual fits failed to display the wrinkles caused by the tightness or the excessive slack. The virtual fit showed fewer wrinkles and did not depict the location and the shape of hemlines as accurately as the actual fit, although virtual fits adequately displayed the baseline and dart on the pants.

• 한국컴퓨터정보학회논문지
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• 제12권2호
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• pp.21-28
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• 2007

얼굴모델링과 애니메이션에 대한 기술은 컴퓨터 그래픽스 분야에서 오랫 동안 연구되어 오고 있는 분야 중 하나이다. 얼굴모델링 기술은 가상현실, MPEG-4 등의 연구목적과 영화, 광고, 게임 등의 산업 분야에서 많이 활용되고 있다. 따라서 좀 더 사실적인 인터페이스의 구현을 위하여 컴퓨터 의인화를 통해 인간과 상호작용 할 수 있는 3D 얼굴모델 개발은 필수적이다. 본 연구에서는 임의의 정면 얼굴 이미지를 이용하여 간편한 조작으로 3D 얼굴모델을 생성하는 시스템을 개발하였다. 이 시스템은 한국인 표준 얼굴모델을 이용하여 메쉬상의 조정점을 얼굴 부위와 윤곽에 맞게 정합한 다음 유동적이고 탄력적으로 조정하여 3D 얼굴모델을 생성하며, 그 결과인 3D 얼굴모델을 이동, 확대, 축소, 회전시켜 가며 실시간으로 확인 및 수정할 수 있다. 개발한 시스템의 유용성을 검증하기 위해 $630{\times}630$의 크기를 가지는 30개의 임의의 정면 얼굴이미지를 가지고 실험했다.

• 복식문화연구
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• 제31권5호
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• pp.586-606
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• 2023

This study initiated research aligned with the body positivity movement, aiming to explore size diversity for groups facing relative size discrimination due to their deviation from average body types. Using KS adult women's apparel dimensions as a reference, jackets were developed for women in their 20s to 30s who belong to the small petite-size (S[P]) category, which is characterized by a height under 155cm (petite) and a bust-circumference from 72cm to less than 82cm (small). Using 3D virtual-fitting, we conducted experiment-pattern production and refinement and subsequent real-fitting evaluations by participants to objectively validate aesthetics and comfort. The study's findings are as follows: First, utilizing a 3D virtual-fitting program by identifying 'creases' and 'garment pressure points' in the jacket appearance, experiment patterns were refined and real jackets were produced. This approach addressed challenges in recruiting participants with specific body types and allowed for efficient research in terms of cost and time. Second, through real-fitting evaluations, basic-fit and slim-fit jackets labeled as <79-88-150> were developed for the S(P) size. we presented 'size spec' and 'ease allowance' for jackets by waist fit. Both fits received positive evaluations with approximately 53.5cm sleeve length, and 11.7cm shoulder length. The ease allowances for the basic-fit jacket were approximately 9.2cm at the bust circumference, 12.8cm at the waist circumference, and 6cm at the hip circumference. Similarly, the slim-fit jacket exhibited ease allowances of about 4.8cm at the bust circumference, 4cm at the waist circumference, and 4cm at the hip circumference, receiving positive evaluations for aesthetics and comfort.

• 한국컴퓨터정보학회논문지
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• 제24권2호
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• pp.75-84
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• 2019

The purpose of this study was to present a good pants pattern for boys aged 13-18 by comparing and analyzing the pants pattern according to lower body shape. And through it, this study was to provide basic data for pants production considering male student body shape. The pattern of this study used the industrial type Lee Hee-chun pattern and DC Suite Program for 3D virtual simulation. As a result of the appearance evaluation, there was a significant difference between the patterns in most items. Type 2 was rated highly, followed by Type 4, Type 3, and Type 1. Type 1 required correction of the length of the pants and the amount of crotch part, while type 3 required adjustment of the pants in the knee area. Type 4 required correction of pattern drawing method of crotch width, thigh circumference, and knee circumference. This pattern method was evaluated as suitable for slender body shape. This study suggests a pants pattern system suitable for adolescent boys by reflecting the body shape characteristics of adolescent boy with a change of body shape. It is expected that this will meet the increasing demand for fitting. In this study, we have examined 3D virtual simulation, not actual wear experiment, so it will be necessary to investigate the difference through actual clothing experiment for adolescent boys.

• 패션비즈니스
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• 제25권5호
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• pp.73-87
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• 2021

This study aimed to develop fashion designs by applying the PO (Provocative Operation) method as a 3D virtual clothing program and to derive the PO application method in fashion design. The first T-shirt design was presented as an existing thinking method, and the second design was developed by applying escape, reversal, exaggeration, distortion, and hopeful thinking techniques, which are techniques for 'provocation' of the PO method, to the first design. Thus, 18 T-shirt designs were developed as 3D virtual clothing, with 3 sets of 6 designs, including the 1st and 2nd designs. The method of using the 'provocation' techniques of the PO method in the development of fashion design derived from this was as follows. First, the 'escape' technique was designed in such a way that a part of the detail or structure was deleted, or a part of the structure or expression element of another item was applied. Second, the 'inversion' technique was expressed by inverting the position or shape of a detail or structure up, down, left, and right; fitting the structural detail or reversing the shape; or converting the structure and form. Third, the 'exaggeration' technique exaggerated the size, length, and volume of a structure's form or detail. Fourth, the 'distortion' technique was expressed as a distortion of lines or shapes or a visual distortion using the Trompe l'oeil technique. Fifth, the 'hopeful thinking' technique was developed and expressed from the idea of an hypothetical 'if' it was absurd, irrational, and unrealistic.

• 한국의류산업학회지
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• 제11권2호
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• pp.308-314
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• 2009

In creating an avatar, consumers can find out for themselves their own sizes to be entered. Also, putting in a face creation main-page menu option enables clients to make up their faces and match them to their bodies. Through this process when purchasing clothes through the internet consumers can enter their own body sizes and create avatars that are identical to their body shape. The uniqueness of developed prototype is that it creates an avatar similar to one's body shape according to body size inputs and demonstrates visually to customers the on-line comfort test which was only available off-line traditionally. The avatar follows the movement of mouse from left to right which enables 3 dimensional visualization. Through maximizing the visual effect this research focuses on enabling consumers to feel subjective parts as if they are off-line. This study seeks to provide a type of prototype of an online shopping mall that meets the demand of the consumers using the 3D avatar.

• 복식문화연구
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• 제31권5호
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• pp.640-650
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• 2023

This study aimed to suggest a suitable collar pattern by visually evaluating the appearance of the amount of collar drape by the starting position of the lapel line of a double-breasted tailored jacket using a 3d virtual fitting program. It created an avatar based on the mean size of women in their 20s (the 8th Size Korea) using clo network (double fastening: 10cm, collar width: 4.5cm, collar stand: 3cm, and lapel width: 8.5cm). The starting of the lapel twist line was waistline level, the 1/2 level of bustline and waistline, or bustline level, and collar laying amount was 4.5, 5.5, 6.5, or 7.5cm. It was evaluated by garment construction experts using 5, 6, and 4 items on the front, sides, and back, respectively. Descriptive statistics, F-test, Duncan-test, and reliability analysis were conducted using SPSS 22. When collar laying amount was 6.5cm, it was best rated regardless of the starting point. Under waist line, when collar laying amount was 6.5cm, it was best rated regardless of the starting point. When collar laying amount was large, the collar's outline length increased, resulting in unnecessary wrinkles from the neckline to the lapel, affecting the overall collar appearance. When collar laying amount was the smallest, the collar was lifted and the width was narrowed, exposing the seam connecting the collar and neckline. The length of the collar's outline varied depending on collar laying amount, which was important to make the outline sit comfortably on the body.