• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2022.11a
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• pp.30-31
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• 2022

지속되는 팬데믹과 함께 비대면 시대가 개막 되었다. 따라서 사람과 사람사이 접촉을 최소화 하면서, 동시에 생활과 작업의 효율을 보장하는 시스템에 대한 수요가 사회의 이슈로 떠오르게 되었다. 이런 시대적 배경에 발 맞춰 회사생활 또한 급속한 변화를 이루어내고 있다. 그중에서 컴퓨터 비전과 그래픽스 기술의 눈부신 발전과 함께 온라인과 가상공간에서 업무를 보려고 하는 시도가 좋은 대안으로 세간의 주목을 받고 있다. 본 논문에서는 가상공간에서 미팅을 진행 할 수 있는 가상 온라인 미팅 시스템과 이런 시스템을 구성하는데 제일 중요한 과제인 실감 3차원 아바타를 생성하는 방법을 제안한다.

• Journal of Information Technology Services
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• v.21 no.5
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• pp.107-127
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• 2022

Personal broadcasting utilizing Vtuber, a virtual creator made of 2D or 3D avatars, has recently appeared and is growing in popularity. Vtuber is a virtual person who broadcasts on the Internet using 2D or 3D avatars with real-time motion capture and computer graphics technologies. While the personal broadcasting industry utilizing Vtuber is proliferating, related studies have mainly concentrated on technical issues. Therefore, in this study, the antecedent factors that form the technical characteristics and virtual creator characteristics of Vtuber personal broadcasting are derived using the Stimulus-Organism-Response (S-O-R) model. Then the effect of these factors on viewer pleasure and satisfaction, which lead to increased paid sponsorship is to be examined. Furthermore, we investigate how this influencing mechanism fluctuates based on the avatar type (2D vs. 3D). This study contributes to empirical examinations of viewers' paid sponsorship intention in Vtuber personal broadcasting through the S-O-R model. It also offers insights that technological or virtual creator characteristics could improve viewers' pleasure, satisfaction, and even paid sponsorship.

• Journal of Korea Game Society
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• v.10 no.1
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• pp.25-34
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• 2010

The entertainment has been quite affected by the development of scientific technology, so that the kind of contents and the type of enjoyment entertained to the people has been versatile and changed. As this trend goes on, the expectation level of the entertainment becomes gradually increased for the people's point of view. The proposed system can be designated as a physically recognizable 3D dancing game in which the avatar resembling the participant dances as tracking the face of the game participant. By the result of the survey, it can conclude that the proposed game system would be expected as a new and fascinating game rather than the currently available games due to the fact that it will give more interests and self-involvement since augmented experience in entertainment is provided.

• Journal of the Korea Computer Graphics Society
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• v.28 no.4
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• pp.1-11
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• 2022

The Skinned Multi-Person Linear Model (SMPL) is the most widely used parametric 3D Human Model optimized and learned from CAESAR, a 3D human scanned database created with measurements from 3,800 people living in United States in the 1990s. We point out the lack of racial diversity of body types in SMPL and propose K-SMPL that better represents Korean 3D body shapes. To this end, we develop a fitting algorithm to estimate 2,773 Korean 3D body shapes from Korean body measurement data. By conducting principle component analysis to the estimated Korean body shapes, we construct K-SMPL model that can generate various Korean body shape in 3D. K-SMPL model allows to improve the fitting accuracy over SMPL with respect to the Korean body measurement data. K-SMPL model can be widely used for avatar generation and human shape fitting for Korean.

• Proceedings of the Korea Multimedia Society Conference
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• 2003.11b
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• pp.1010-1013
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• 2003

최근 3D 그래픽을 활용한 다양한 서비스들이 많이 개발되어 제공되고 있다. 특히 가상환경 내에서 아바타를 이용하여 컨덴츠 정보를 제공하는 서비스는 사용자의 흥미를 유발하기에 효과적이며, 정보 전달력 면에서도 뛰어나다는 장점으로 인해 최근 가장 각광받는 분야이다 이러한 3D아바타의 모션을 생성하기 위한 다양한 편집기 시스템이 제안되어 사용되고 있지만, 현재 시스템에서 생성하는 아바타 모션은 표준 형식이 아닌 어플리케이션에 비 독립적 방식으로 저장되기 때문에 모션의 재사용성 측면이나 활용성에서 비효율적이다. 그러므로 이와 같은 문제점을 해결하기 위해 사용자가 직접 아바타를 조작하여 작업레벨 모션을 정의할 수 있으며, 생성된 모션을 표준형식인 XML 파일로 변환하여 저장해주는 시스템을 제안하고자 한다.

• Proceedings of the Acoustical Society of Korea Conference
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• autumn
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• pp.67-70
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• 2000

본 연구는 현 Inner-Wear매장에서 판매되어지는 제품을 소비자가 선택할 수 있는 한계 즉, 시각적인 연에 국한된다는 것에 착안하여 현실이 아닌 가상공간에서의 구매. 즉 물리적 현실적 제약으로부터 현재 존재하지 않는 미래의 상황을 연출, 미리 볼 수 있도록 가상의 상황을 입체적으로 연출하여 Inner-Wear를 쉽게 착용하고 그 모습을 자유롭게 검색하여 볼 수 있도록 하고자 한다. 자신의 신체를 만들어 보고 자신이 구매하고자 하는 제품을 골라 가상공간에서 자신의 신체에 직접 입혀보며 자신의 신체에 얼마나 잘 맞는지 직접 확인해 보고 구매 할 수 있도록 하는데 있다. 이 시스템은 Web상에서 구동 할 수 있도록 구현되어 일반 소비자들이 어디서나 사이트에 접속하여 구매 할 수 있도록 할 것이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.355-356
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• 2012

Recently, Digital clothing techniques using computer graphics to reappear clothes are activated in fashion area and Researches incorporating fashion flows and 3D techniques are frequently progressed. In fashion industry, Using smartphone can make successful result by catching a change of trend and adding an emotional factor. Conventional 3D fitting services are only provided in store or internet sites installed avatar system, virtual mirror. This study suggests a fashion fitting service system saving time and oneself by using I-phone in consumers' position. In this system, Companies can market their product easily to consumers, consumers can choose various product and check their fitness.

• The Research Journal of the Costume Culture
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• v.31 no.5
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• pp.627-639
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• 2023

This study seeks to increase the satisfaction of elderly men when purchasing and wearing ready-to-wear clothes by designing a slacks pattern suitable for their body type, which is determined by analyzing their lower bodies using virtual avatars and 3D virtual simulation system. The study found the following. First, based on virtual visualization of the comparison slacks pattern, the waistline position was consistently the lowest scored question among the evaluation survey items. Interpretation of this dissatisfaction suggests that, because the front waistline falls below the abdomen, the lower body, and especially the abdominal shape, is unpleasantly emphasized. Second, by using a virtual simulation system, the study developed a new slacks pattern that considered the concerns of elderly men. The primary measurement changes were as follows: front waist girth W/4+1.5cm+0.5cm, back waist girth W/4+1.5cm-0.5cm, front hip girth H/4+2.5cm-0.5cm, back hip girth H/4+2.5cm+0.5cm. Third, the new slacks pattern's appearance was evaluated more highly than the comparison pattern, confirming the new pattern's appropriateness for elderly men. This study demonstrates how slacks and other clothing patterns designed in a 3D virtual garment simulator can be used to design more appealing clothing for elderly men, increasing the satisfaction of wearing ready-made clothes at older ages.

• Fashion & Textile Research Journal
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• v.23 no.6
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• pp.744-757
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• 2021

This study aims to develop a bodice and a jacket in 3D of the late 19th to early 20th based on the pattern drafting book of Gordon S. S., which contains body measurement method and pattern drafting system. The findings of this research are as follows. First, female tops of the late 19th to early 20th century are categorized as outer, jacket, vest, and bodice. Of these, this study highlights the jacket, which can be divided into 4 types: 4 kinds of basic jacket, 2 kinds of riding jacket, bolero jacket, and newmarket jacket. Second, by referring to Gordon's pattern drafting system and book, a bodice was developed in 3D format based on the adherence to the following steps: analysis of the pattern drafting system, pattern drafting, 3D virtual simulation, 3D virtual fitting analysis, and the pattern correction. A bodice pattern corrected by 3D virtual clothing simulation results was proposed. Last, a basic sleeve and collar pattern for a basic jacket was drafted, which was followed by the correction and transformation of the bodice pattern. The jacket developed shows great fit except for the issues at the armhole line and shoulder, which were caused by the unique shape of the sleeves(big sleeve head) of the time. The study attempted to develop the past costumes in 3D, providing the basis for interdisciplinary research in the field of fashion history field and suggesting a new approach for the virtual restoration of costumes. Future studies should target to 3D virtual simulation in accordance to the 3D avatar pose in the developed virtual costume.

• Journal of the Korean Institute of Intelligent Systems
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• v.19 no.1
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• pp.1-5
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• 2009

This paper suggests to apply mirror-reflected method based 2D emotion recognition database to 3D application. Also, it makes facial expression of fuzzy modeling using probability of emotion. Suggested facial expression function applies fuzzy theory to 3 basic movement for facial expressions. This method applies 3D application to feature vector for emotion recognition from 2D application using mirror-reflected multi-image. Thus, we can have model based on fuzzy nonlinear facial expression of a 2D model for a real model. We use average values about probability of 6 basic expressions such as happy, sad, disgust, angry, surprise and fear. Furthermore, dynimic facial expressions are made via fuzzy modelling. This paper compares and analyzes feature vectors of real model with 3D human-like avatar.