• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권3호
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• pp.1026-1042
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• 2020

People are increasingly demanding to experience realistic behavior of virtual characters in computer games. In this article, we build a computer model for simulating a bicycle rider's behavior in a virtual riding system. A method to calculate the speed of a bicycle rider is proposed to improve the reality in a virtual riding system. In this method, the property of physical energy is introduced, and the bicycle-riding speed is calculated in real time according to the relationship between the rider's physical energy and bicycle-riding speed. Then based on the analysis of the behavior of a cyclist in a real competition, various behaviors of the virtual rider are designed and a behavior-tree for the virtual bicycle rider is constructed accordingly. On the basis of these, a virtual riding system is developed. The experiments results show that our system can simulate the behavior of a virtual bicycle rider, and thus encourage exercise on a stationary bicycle.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권2호
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• pp.982-1004
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• 2017

The recent advances in the field of augmented reality (AR) have shown that the technology is a fundamental part of modern immersive interactive systems for the achievement of user engagement and a dynamic user experience. This survey paper presents the descriptions of a variety of the new AR explorations, and the issues that are relevant to the contemporary development of the fundamental technologies and applications are discussed. Most of the literature regarding the pertinent topics-taxonomy, the core tracking and sensing technologies, the hardware and software platforms, and the domain-specific applications-are then chronologically surveyed, and in varying detail, this is supplemented with the cited papers. This paper portrays the diversity of the research regarding the AR field together with an overview of the benefits and the limitations of the competing and complementary technologies.

• 디지털콘텐츠학회 논문지
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• 제17권5호
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• pp.425-432
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• 2016

스마트 교육을 위해 교사가 스스로 3D 융합 콘텐츠를 쉽게 제작할 수 있는 저작도구는 거의 없다. 본 연구는 스마트 교육을 위한 교사용 인터랙티브 3D 융합 콘텐츠 저작도구를 제안하고 설계하였다. 이를 위해, 스마트 교육 환경에서 교사의 저작환경을 조사하고, 교사들의 요구사항을 조사하였다. 이런 조사를 바탕으로, 스마트 교육을 위한 3D 융합 콘텐츠 저작도구의 기능요건과 설계안을 도출하였다. 현장 교사 그룹을 통해 도출된 설계안의 만족도 조사를 실시하였다. 본 연구 결과를 토대로 스마트 교육을 위한 인터랙티브 3D 융합 콘텐츠 저작도구를 구현할 예정이다.

• International Journal of Internet, Broadcasting and Communication
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• 제10권3호
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• pp.73-80
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• 2018

This study introduces an interactive drawing system, a tool that allows user to sketch and draw with his own intentions. The proposed system enables the user to express more creatively through a tool that allows the user to reproduce his original idea as a drawing and transform it using his body. The user can actively participate in the production of the artwork by studying the unique formative language of the spectator. In addition, the user is given an opportunity to experience a creative process by transforming arbitrary drawing into various shapes according to his gestures. Interactive drawing systems use the segmentation of the drawing image as a way to extend the user's initial drawing idea. The system includes transforming a two-dimensional drawing into a volume-like form such as a three-dimensional drawing using image segmentation. In this process, a psychological space is created that can stimulate the imagination of the user and project the object of desire. This process of drawing personification plays a role of giving the user familiarity with the artwork and indirectly expressing his her emotions to others. This means that the interactive drawing, which has changed to the emotional concept of interaction beyond the concept of information transfer, can create a cooperative sensation image between user's time and space and occupy an important position in multimedia society.

• 디지털콘텐츠학회 논문지
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• 제10권2호
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• pp.319-326
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• 2009

본 논문에서는 별도의 센서를 부착하지 않고 영상만을 이용하여 실시간으로 손 형상을 인식하는 알고리즘에 대해 기술한다. 손은 형상이 매우 복잡하기 때문에 2차원 형상의 불변량에 해당하는 에지의 방향성 히스토그램을 이용하여 인식을 행한다. 이 방법은 복잡한 배경에서 피부색을 지닌 손 영역이 정확히 추출되며 손 형상을 인식하는데 있어서 수행속도가 빠르고 조명변화에 덜 민감하기 때문에 실시간 손 형상 인식에 적합하다. 본 논문에서는 손의 형상에서 방향이 틀어지는 경우에도 인식을 가능하게 하기위해 주성분 분석법을 사용하여 인식오차를 줄이는 방법을 기술한다. 이 방법을 사용함으로써 손 영상이 3차원적으로 회전에 의해 변하는 경우도 인식가능하게 되었다. 본 논문에서 제안하는 방법은 가정용 가전제품이나 게임을 제어하는 실시간 휴먼 인터페이스 제작에 사용 할 수 있다.

• 한국환경교육학회지:환경교육
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• 제17권2호
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• pp.26-37
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• 2004

The goal of this paper is to develop a regional environmental education program using a regional environment of dam, and to set up a regional education for sustainable development with applying that program to the students. This environmental education program is based on Hungerford's project, which consists of 4 subjects. They are good and bad influences of dam environment which students can experience easily in daily life. Through the volunteering activities such as discussion, search and observation, pre- and post-test, study of value, presentation and game, students can decide which is a favorable strategy for preserving dam facilities well. And they are encouraged to take part in environmental preservation and practice what they learn everyday in the community. The following are the outcomes of this environmental education program: First, students are much more interested in regional and general environmental problems than before and participate in conservation activities voluntarily. Second, students express their willingness for the prevention of water pollution in Hapcheon Dam by collecting garbages and reducing synthetic detergent. Third, students demand some measures which connect the school program to citizen groups for the prevention of water pollution in Hapcheon Dam.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2004년도 춘계종합학술대회
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• pp.416-419
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• 2004

최근에는 컴퓨터 시뮬레이션을 통해서 실제 전투 자산을 가동하지 않고 실전과 같은 전투경험을 부여하고 있다. 이러한 시뮬레이션이 실제와 똑같은 환경을 구축하기 위해서는 현재 사용하는 워게임 모델을 운용하기 위한 데이터베이스가 잘 구축되어야 하고, 그 데이터베이스를 포함한 페더레이트(federate)간의 연동(federation)이 네트워크 상에서 잘 수행되어야 한다. 이에 본 논문에서는 전장 데이터(이하 액티브 패킷)의 신속한 전달을 필요로 하는 긴급한 실제상황과 유사한 전장공간을 구축할 수 있도록 액티브 네트워크 상에서 페더레이트(혹은 액티브 노드) 간의 효율적인 트래픽 처리가 가능한 가상 전장 환경을 구성하고, 이에 대한 유효성을 모의 실험을 통하여 검증하였다.

• 동의생리병리학회지
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• 제20권1호
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• pp.52-57
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• 2006

Gigong exercise is simple form's game for health care. Gigong exercise is the training method in mind and body, and it prevent or cure the disease by becoming larger the human's nature-healing power This syudy intends to identify the effective processing channel of the Doin Gigong Exercise for the reduction of shoulder-arm pain. The processing channel of the Doin Gigong Exercise for the reduction of shoulder-arm pain cinsist of warming, main, finishing exercise. The warming exercise start breathing and concentrate upon shoulder-arm exercise. The upper and lower sides join-hands exercise give help smoothly the Gi-circulation of human body in every direction. The finishing exercise consist of experience to Gi with the object of maintaining human comfortable condition. As mentioned above, the Doin Gigong exercise is effective intervention for the reduction of shoulder-arm pain.

• 문화기술의 융합
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• 제5권4호
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• pp.283-288
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• 2019

수강생들의 정보와 경험 부족을 극복하기 위해, 의사 결정 트리를 활용한 콘텐츠 기획 트리를 개발하였다. 콘텐츠 기획 트리는 수강생들이 개발할 주제와 스토리를 선택하는 나무 몸통 생성단계, 해당 스토리를 바탕으로 개발 가능한 형태 '범주'를 선택하는 부모 가지 생성단계, 해당 콘텐츠를 효과적으로 제작하는 흥미 '효과'를 선택하는 자식가지 생성단계 그리고 시각화할 멀티미디어 표현 '요소'를 선택하는 잎사귀 생성단계로 구성된다. 교육 모델은 게임기획 디자인과 정보시각화 강의에 적용되었고, 각 강의에서 사용된 범주, 효과 그리고 요소의 예를 사례로 제시한다. 교육 모델은 145개 팀 프로젝트에 사용되었고, 단계별 학습 프로세스로 효율성을 확인하였다.

• 한국멀티미디어학회논문지
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• 제25권10호
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• pp.1499-1511
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• 2022

In the context of globalization, circulation between cities has become more frequent. The airport is no longer just a place for boarding, disembarking, and transportation, but a public place that serves as the communication function of the "aviation city". The intervention of public art in the airport space not only gives users a sense of space experience, but also becomes a unique carrier for city and country image shaping. The purpose of this paper is to study the emotional value brought by airport public art to users, and to investigate the correlation analysis of public art design elements and user preferences based on this premise. The research methods are machine learning method and SPSS 21.0. The user's emotional value is introduced in the big data evaluation, and the preference and inclination of airport users to various elements of public art are analyzed by questionnaire. Through the research conclusion, the preference and main contradiction of users in the airport for the four dimensions of public art design elements are obtained. Opinions and optimization methods to provide reference data and theoretical support for public art design.