• The Journal of the Korea Contents Association
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• v.20 no.7
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• pp.525-533
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• 2020

In recent years, the VR-interactive action contents industry, which utilizes five senses of human bodies, has continued to grow through areas such as games, tourism, movies, performances and exhibitions, but it has reached to breaking point by unrealistic visual elements. Therefore, the purpose of this study is to analyze the effect of each evaluation factor based on visual immersion of interactive type of VR action contents to overcome the limitations. For this study, firstly, prior research is reviewed. Secondly, the evaluation factors of visual immersion of interactive type of VR action contents and hypothesis are to be derived. Research finding is that there is no difference to recognize proximity, three-dimensionality, visibility and immersion by gender. Also, in order to influence visual immersion, it is important that 3D modeling of characters and objects must be sophisticated to be fit in with their surroundings and lighting. This makes user to be confused where they are actually in.

• Journal of the Korea Computer Graphics Society
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• v.19 no.2
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• pp.1-8
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• 2013

Captured human motion data has been widely utilized for understanding the mechanism of human motion and synthesizing the animation of virtual characters. Searching for desired motions from given motion data is an important prerequisite of analyzing and editing those selected motions. This paper presents a new method of content-based motion retrieval without the need of additional metadata such as keywords. While existing search methods have focused on skeletal configurations of body pose or planar trajectories of locomotion, our method receives a three-dimensional trajectory as its input query and retrieves a set of motion intervals in which the trajectories of body parts such as hands, foods, and pelvis are similar to the input trajectory. In order to allow the user to intuitively sketch spatial trajectories, we used the Leap Motion controller that can precisely trace finger movements as the input device for our experiments. We have evaluated the effectiveness of our approach by conducting a user study in which the users search for dozens of pre-selected motions from baseketball motion data including a variety of moves such as dribbling and shooting.

• Journal of Korea Game Society
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• v.2 no.2
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• pp.28-36
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• 2002

In general, triangular meshes have been used for modeling geometric objects such as virtual game characters. The dense meshes give us considerable advantages in representing complex, highly detailed objects, while they are more expensive for storing, transmitting and rendering the objects. Therefore, several researches have been performed for producing a high quality approximation in place of detailed objects, that is, a simplification of triangular meshes. In this paper, we propose a new measure with respect to edges and vertices, which is called an approximate mean curvature and is used as criteria to simplify an original mesh. An edge mean curvature is computed by considering its neighboring edges, and a vertex mean curvature is defined as an average of its incident edges' mean curvatures. And we apply the proposed measure to simplify the models such as a bunny, dragon and teeth. As a result, we can see that the mean curvatures can be used as good criteria for providing much better approximation of models.

• The KIPS Transactions:PartB
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• v.10B no.7
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• pp.795-802
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• 2003

To live autonomously, intelligent agents such as robots or virtual characters need ability that recognizes given environment, and learns and chooses adaptive actions. So, we propose an action selection/learning mechanism in intelligent agents. The proposed mechanism employs a hybrid system which integrates a behavior-based method using the reinforcement learning and a cognitive-based method using the symbolic learning. The characteristics of our mechanism are as follows. First, because it learns adaptive actions about environment using reinforcement learning, our agents have flexibility about environmental changes. Second, because it learns environmental factors for the agent's goals using inductive machine learning and association rules, the agent learns and selects appropriate actions faster in given surrounding and more efficiently in extended surroundings. Third, in implementing the intelligent agents, we considers only the recognized states which are found by a state detector rather than by all states. Because this method consider only necessary states, we can reduce the space of memory. And because it represents and processes new states dynamically, we can cope with the change of environment spontaneously.

• 한국HCI학회:학술대회논문집
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• 2006.02b
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• pp.563-570
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• 2006

본 논문은 감정 교류를 위한 목적으로 가상 캐릭터에서 사용되기 시작하여 현재 로봇에 이르기까지 그 이용 범위를 넓혀가고 있는 스토리텔링이 사용자 친밀성에 미치는 영향과 사용자가 어떻게 엔터테인먼트 로봇과 친밀성을 형성해나가는지, 또 친밀성 요소들은 다양한 스토리텔링에서 서로 어떤 관련성을 가지고 친밀성 형성에 영향을 주는지를 연구 목적으로 삼고 있다. 이를 위해 스토리텔링과 관련된 대화가 가능한 지능형 엔터테인먼트 로봇에 대한 연구를 우선적으로 알아보았으며, 이를 토대로 엔터테인먼트 로봇 중 하나인 애완용 로봇, 아이보(AIBO)가 지니고 있는 스토리텔링을 통해 사용자와 로봇 간 친밀성 형성 및 스토리텔링을 바탕으로 한 친밀성 요소간의 관련성을 알아보았다. 참가자 15명의 설문조사를 바탕으로 실시한 상관관계분석을 통해 사용자와 아이보(AIBO)가 정서적, 오락적, 행동적, 상호공유성에서 인지적, 사회적 친밀성보다 상대적으로 강한 친밀성을 형성하고 있다는 것과 Alexis K. Walker 와 Linda Thompson(1983)을 기본으로 대인관계 측면에서 친밀성에 대해 접근한 이경희(1998), 김혜정(2001), 김미라(2001), 이금남(2001), 송상홍(2004)의 선행 연구를 참조로 분류된 6가지 차원의 친밀성 구성 요소들은 스토리텔링의 형식에 따라 서로 다른 관계성을 형성하고 있다는 것으로 나타났다. 본 논문은 아이보(AIBO)에 쓰이는 스토리텔링이 친밀성 형성에 어떤 영향을 미치는지 또 스토리텔링의 차원에 따라 다르게 반응을 보이는 친밀성 요소들이 서로 어떤 관련성을 맺고 있는지를 살펴본 것에 의의를 둘 수 있다. 스토리텔링에 따라 관련성 정도를 달리하는 친밀성 요소들의 관계를 바탕으로 친밀성 형성에 유용한 스토리텔링의 방향을 제시하는데 의의가 있다.

• Journal of Korea Game Society
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• v.12 no.2
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• pp.31-41
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• 2012

The purpose of serious game for therapy is not to cure patients directly, but to have them cause psychological change, and get positive treatment will. In this study, we extracted 5 elements to be considered to design efficient serious games for psychological therapy through precedent data's analysis. For verification of the extracted elements, we intensively analyzed 2 elements. Those are 'Re-Mission' of which the effect was already proven, and 'SIMS2' which was designed to get the effect of treatment which patients who may experience difficulties in real-world can obtain in virtual space through previous experiences. As a result, material stability, reality, consistency with characters and self-determination of game progress are applied to all the analyzed games, But interactivity with reality is not applied. However, previous researches and validated questionnaire show that interactivity with reality is appropriate element. Consequently, the results of this study will be important materials in designing more efficient serious games for therapy.

• Cartoon and Animation Studies
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• s.20
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• pp.31-45
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• 2010

Stereoscopic 3D animation contents are in the rise as a key part of contents market. Major animation studios are planning to produce 3D animations in a stereoscopic process. This study aims at understanding the visual textuality of 3D animation contents at its early stage. To understand 3D animation, , are analyzed. Stereoscopic 3D animations are exploring the new visual aesthetics using the specific storytelling, sequence ordering, camera working, shot size and camera angles etc. Based on these visual textualities, stereoscopic 3D animations are constructing telepresence, multi-senses of individual spectators. Stereoscopic 3D animations have formed their own aesthetics and cultural meanings in the digital age.

• 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 Korea Game Society
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• v.16 no.4
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• pp.69-78
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• 2016

With the development of game technology, the realistic game graphics, interface technology, and various content services with immersion are being required in the content area. NUI has been developed through CLI and GUI. Unlike the conventional methods, it is an interface that could be the intuitive and realistic interface for human as a natural action realized. we propose a boxing simulation game using leap motion of it. Providing a realistic 3D experimental environment through VR headsets game, we also propose a method that can be calculated the scores if the user-controlled interface (fist) could be to punch the target (sandbag) of the internal in accordance with changes of the angle of target impact with the physical characteristics.

• The Journal of the Convergence on Culture Technology
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• v.4 no.1
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• pp.27-32
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• 2018

Recently, diverse bio-growth and object production experience learning contents have been developed for AR-based storytelling. In this paper, we will develop a storytelling-based growth type content using 3D printer which can add interest in and motivation of experiential learning. It is possible to increase the value of the characters produced by 3D printer as they can be used as personal collections. The bio-growth type content enables the learners and users to experience the local culture, history, and tourism ecology, which can enhance the educational effect by promoting their understanding in a fun way. The purpose of this study is to develop an application for experiential learning contents which creates a virtual environment in an object smart device where you can experience the culture and ecology of a learning community, and then produce the output using the 3D printer to keep as a personal souvenir. The developed contents application for experiential learning can be utilized not only for students but also for tourists. It is expected to serve as a source for further development of various contents through 3D printing technology.