• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.633-635
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• 2021

현재 코로나 19로 인한 각종 지역특산품 축제가 축소 및 취소되어 지역발전에 저해 요인을 해결할 대책이 필요하다. 기존 특산품 축제의 문제점은 상품 품질의 우수성은 있지만, 접근성에 어려움이 있고 지속적인 정부의 방역지침으로 대면이 필수적인 특산품 경제에 타격을 입는다. 본 논문에서는 해당 문제를 해결하기 위해 비대면 메타버스형 VR 기술을 접목한 지역경제 및 관광 활성화를 제안한다. 해당 솔루션은 포톤서버를 활용한 실감형 체험 및 멀티접속을 구현하고 VR-Chatting 기술을 활용하여 대화로 시장 상품을 의견조율 가능한 시스템을 구현하였으며, 3D 아바타 모델링 기술을 활용해 지역별 특성화 캐릭터 제작 및 지역특산품 홍보로 기존 특산품 축제의 문제점을 해결하는 솔루션을 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.05a
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• pp.729-730
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• 2023

Covid-19 팬데믹 같은 상황에서 대면 학교 투어 프로그램의 제한적인 문제점을 보완하고, 학생들이 가상 공간에서 새로운 경험을 할 수 있는 가능성을 SketchUp에서 모델링, Unity에서 캐릭터 생성 및 인터랙션을 구현 및 제공하여 지리적 위치 파악을 쉽게 하여 길찾기의 편의성을 제공한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.733-734
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• 2023

버츄얼 유튜버로서 자신의 동작을 3D 가상 캐릭터로 나타내고, SNS 에서 춤을 공유하는 경우가 많아졌다. 본 논문에서는 2D 영상에서 MediaPipe BlazePose 모델로 추정된 사람 포즈를 3D 인체 모델인 SMPL 에 피팅하여 사용자 정의 3D 모델을 생성하는 방법을 제안한다. 이를 통해 자신의 춤 영상으로 3D 모델을 생성하여 공유하거나, 기존의 춤 동영상으로 3D 모델을 생성하여 댄스 게임에 사용할 수 있다. 이처럼 본 기술은 예술 및 엔터테인먼트 분야에서 다양하게 활용될 수 있다.

• The Journal of the Korea Contents Association
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• v.8 no.12
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• pp.160-167
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• 2008

Animations consist of the created artificial images. To interpret of the meaning from analyzing the style of main images is an important element in understanding of animations. Therefore, to analyze images expressed in works of Miyazaki-hayao, this study substitutes the concept of 'hybridity' for images of characters, backgrounds, and mechanics created by him and explores how they are expressed, how they produce symbolic meanings and functions. It is confirmed that main images in selected works as a scope of research have hybridity of images between 'past, present, and future', 'eastern elements and western elements', 'real and virtual', 'human beings and animal' in narrative. From these results, it is concluded that because of hybridity between images, he can present fresh pleasures to spectators, simultaneously communicate thoughtful messages above mere enjoyment, which is a differentiable point with works of other directors.

• Cartoon and Animation Studies
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• s.33
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• pp.531-549
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• 2013

Action games exhibit all the specific constellation of masochism, such as disavowal, suspense, waiting, fetishism, and fantasy. These characteristics of action games can be analyzed with respect to masochism. This study conducted an analysis excluding sadism as much as possible, as sadism is a result of etiological misconception as opposed to masochism. However, comparative analysis is included in the study so that action games are not seen as demonstrating sadism. Games create a space for virtual interaction for main agents by connecting gamer-existence and game-character in the framework of a contract. The interaction of visual tactility within this space creates a system of difference in pleasure. Masochism enables one to attain pleasure in a world created himself or herself using fetishism in contractual relationships such as the ones exhibited in games. This shows that action games and masochism are mutually related. This paper analyzed the ontology of action games using actual examples of action games. The paper concluded that action games lead to the fulfillment of masochistic pleasure.

• Journal of Korea Game Society
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• v.10 no.2
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• pp.37-47
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• 2010

Along with language, emotion is an effective means of expression. By expressing our emotions as well as speaking language, we can deliver our message better. Because each person expresses the same emotion differently, this expression is a useful gauge to measure an individual personality. To avoid monotonous emotional expression from virtual characters, therefore, it is necessary to adjust the creation and deletion of the same emotion depending on each character's personality. This paper has attempted to define personality characteristics that have an impact on each emotion and propose a method to adjust the emotions. Furthermore, the relationship between particular emotion and personality characteristics has been defined by matching the significance of specified personality characteristics with the lexical meaning. In addition, using the Raw Score, the weighted value which is necessary for the adjustment, continuance and deletion of each emotion has been defined. Then, emotion was properly adjusted. When the same emotion was adjusted using actual personality test data, different results have been observed by personality. This paper has been conducted using NEO Personality Inventory (NEO-PI) which consisted of 5 broad domains and 30 sub domains.

• 한국HCI학회:학술대회논문집
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• 2006.02b
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• pp.362-369
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• 2006

3 차원 그래픽스에 적용하는 한국어 립씽크 합성 체계를 연구하여, 말소리에 대응하는 자연스러운 립씽크를 자동적으로 생성하도록 하는 디자인 시스템을 연구 개발하였다. 페이셜애니메이션은 크게 나누어 감정 표현, 즉 표정의 애니메이션과 대화 시 입술 모양의 변화를 중심으로 하는 대화 애니메이션 부분으로 구분할 수 있다. 표정 애니메이션의 경우 약간의 문화적 차이를 제외한다면 거의 세계 공통의 보편적인 요소들로 이루어지는 반면 대화 애니메이션의 경우는 언어에 따른 차이를 고려해야 한다. 이와 같은 문제로 인해 영어권 및 일본어 권에서 제안되는 음성에 따른 립싱크 합성방법을 한국어에 그대로 적용하면 청각 정보와 시각 정보의 부조화로 인해 지각의 왜곡을 일으킬 수 있다. 본 연구에서는 이와 같은 문제점을 해결하기 위해 표기된 텍스트를 한국어 발음열로 변환, HMM 알고리듬을 이용한 입력 음성의 시분할, 한국어 음소에 따른 얼굴특징점의 3 차원 움직임을 정의하는 과정을 거쳐 텍스트와 음성를 통해 3 차원 대화 애니메이션을 생성하는 한국어 립싱크합성 시스템을 개발 실제 캐릭터 디자인과정에 적용하도록 하였다. 또한 본 연구는 즉시 적용이 가능한 3 차원 캐릭터 애니메이션뿐만 아니라 아바타를 활용한 동적 인터페이스의 요소기술로서 사용될 수 있는 선행연구이기도 하다. 즉 3 차원 그래픽스 기술을 활용하는 영상디자인 분야와 HCI 에 적용할 수 있는 양면적 특성을 지니고 있다. 휴먼 커뮤니케이션은 언어적 대화 커뮤니케이션과 시각적 표정 커뮤니케이션으로 이루어진다. 즉 페이셜애니메이션의 적용은 보다 인간적인 휴먼 커뮤니케이션의 양상을 지니고 있다. 결국 인간적인 상호작용성이 강조되고, 보다 편한 인간적 대화 방식의 휴먼 인터페이스로 그 미래적 양상이 변화할 것으로 예측되는 아바타를 활용한 인터페이스 디자인과 가상현실 분야에 보다 폭넓게 활용될 수 있다.

• Journal of Korea Multimedia Society
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• v.13 no.5
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• pp.802-816
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• 2010

To create gesture from a new text input is an important problem in computer games and virtual reality. Recently, there is increasing interest in gesture stylization to imitate the gestures of celebrities, such as announcer. However, no attempt has been made so far to stylize a gestures using emotion such as happiness and sadness. Previous researches have not focused on real-time algorithm. In this paper, we present a system to automatically make gesture animation from SMS text and stylize the gesture from emotion. A key feature of this system is a real-time algorithm to combine gestures with emotion. Because the system's platform is a mobile phone, we distribute much works on the server and client. Therefore, the system guarantees real-time performance of 15 or more frames per second. At first, we extract words to express feelings and its corresponding gesture from Disney video and model the gesture statistically. And then, we introduce the theory of Laban Movement Analysis to combine gesture and emotion. In order to evaluate our system, we analyze user survey responses.

• Journal of KIISE:Computer Systems and Theory
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• v.34 no.3
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• pp.124-131
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• 2007

Research field on crowd animation can be classified into two major categories. One is to offer realism of the crowd motion and the other is to improve speed of the animation. For the last decade, a lot of research on realism and behavior of crowd have been presented. But lately, research on improving speed seems like more interesting. Therefore, in this paper, we conducted an experiment to analyze what is the main bottleneck of crowd animation. As the result, we find out one of the most important bottleneck is the number of joints transformed in each animation frame. In order to resolve this problem we propose a novel level-of-detail technique 'motion level-of-detail', which is a joint-reduction technique operated in the pre-processing time. We used a non-linear optimization, SQP (sequential quadric programming), to generate the low detailed motions.

• Journal of the Korea Computer Graphics Society
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• v.21 no.5
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• pp.29-36
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• 2015

Human fingers are essential parts of the body that perform complex and detailed motion. Expression of natural finger motion is one of the most important issues in character animation research. Especially, keyboard typing animation is hard to create through the existing animation pipeline because the keyboard typing typically requires a high level of dexterous motion that involves the movement of various joints in a natural way. In this paper, we suggest a method for the generation of realistic keyboard typing motion based on physics simulation. To generate typing motion properly using physics-based simulation, the hand and the keyboard models should be positioned in an allowed range of simulation space, and the typing has to occur at a precise key location according to the input signal. Based on the observation, we incorporate natural tendency that accompanies actual keyboard typing. For example, we found out that the positions of the hands and fingers always assume the default pose, and the idle fingers tend to minimize their motion. We handle these various constraints in one solver to achieve the results of real-time natural keyboard typing simulation. These results can be employed in various animation and virtual reality applications.