• 로봇학회논문지
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• 제2권2호
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• pp.143-151
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• 2007

This paper deals with a tangible interface system that introduces robot as remote avatar. It is focused on a new method which makes a robot imitate human arm motions captured from a remote space. Our method is functionally divided into two parts: capturing human motion and adapting it to robot. In the capturing part, we especially propose a modified potential function of metaballs for the real-time performance and high accuracy. In the adapting part, we suggest a geometric scaling method for solving the structural difference between a human and a robot. With our method, we have implemented a tangible interface and showed its speed and accuracy test.

• Journal of Astronomy and Space Sciences
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• 제20권4호
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• pp.359-364
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• 2003

In this paper, we present multi-sensor data fusion for telematics application. Successful telematics can be realized through the integration of navigation and spatial information. The well-determined acquisition of vehicle's position plays a vital role in application service. The development of GPS is used to provide the navigation data, but the performance is limited in areas where poor satellite visibility environment exists. Hence, multi-sensor fusion including IMU (Inertial Measurement Unit), GPS(Global Positioning System), and DMI (Distance Measurement Indicator) is required to provide the vehicle's position to service provider and driver behind the wheel. The multi-sensor fusion is implemented via algorithm based on Kalman filtering technique. Navigation accuracy can be enhanced using this filtering approach. For the verification of fusion approach, land vehicle test was performed and the results were discussed. Results showed that the horizontal position errors were suppressed around 1 meter level accuracy under simulated non-GPS availability environment. Under normal GPS environment, the horizontal position errors were under 40㎝ in curve trajectory and 27㎝ in linear trajectory, which are definitely depending on vehicular dynamics.

• 디자인학연구
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• 제17권2호
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• pp.463-470
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• 2004

본 연구에서는 비교적 간단한 구현 기술과 저가의 플랫폼으로 가상현실 체험을 해볼 수 있는 콘텐츠를 개발하고자 효과적인 가상현실 경험의 구현 요소를 연구하였으며, 그 요소는 현실감과 몰입감, 환상감의 구현 및 Tangible interaction의 사용으로 요약되었다. 이러한 요소들을 적용하여 경험 디자인 컨셉을 도출하고 상대적 현실감이 높은 실사 비디오 영상의 대화면 프로젝션(projection)과 비전 트레킹(Vision Tracking) 기술을 활용한 플랫폼을 디자인하였으며, Tangible device의 자연스러운 인터렉션을 적용한 가상현실 콘텐츠를 디자인하였다. 디자인 결과물은 전시의 형태로 제시하여 일반 사용자들의 체험 기회를 넓히고자 하였으며, Class Xylophone 2003과 VR Class의 두 가지 사례 연구를 통하여 컨텐츠 및 인터렉션 컨셉의 타당성을 검증하였고 다양한 가상현실 콘텐츠와 그 상업적 활용 가능성을 보여줌으로서 가상현실 분야의 저변 확대에 기여하고자 하였다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.794-799
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• 2004

Recent paradigm in technology shifts from object-based technology to environment-based technology. Issue here is interaction among humans and the world around humans, which is natural and artificial "space." Holistic interactions based on "Mom (embodiment)" suggest a good starting point for exploring this issue. Soft engineering, "Mom," holistic interactions, tangible space, ubiquitous computing, science of emotion, and interactive media are key concepts in interactive technology. Interactive tangible media "iT_Media" is proposed to explore and synthesize these ideas. Interactive technology initiative (ITI) is an interdisciplinary research group to search for the proper technology and the proper way of implementing technology: "interactive technology" or "soft engineering." Some experimental activities conducted by ITI are presented in this session, "Interactive Technology."

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2007년도 학술대회 2부
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• pp.705-712
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• 2007

최근 뉴미디어 제품 디자인을 위한 텐저블 인터페이스(Tangible Interface)에 대한 연구 개발이 국내외에서 활발하게 이루어지고 있다. 이는 미래 미디어에 있어서 텐저블 인터페이스가 매우 중요해진다는 점을 시사한다. 현재 텐저블 인터페이스의 연구는 아직 초기단계이며 기술에 대한 의미, 컨셉트, 방향 등이 점점 구체화 되어가고 있는 실정이다. 따라서 본 연구는 실감공간기술(Tangible Space Initiative)이 다양한 방향으로 개발될 수 있는 잠재가능성을 가지고 있다고 보고 현실의 사회상과 다양한 미래기술을 반영할 수 있는 SF영화에서 많은 아이디어를 얻을 수 있을 것이라 생각했다. 이에 본 연구는 영화에 나타난 실감공간기술과 유사한 디지털 인터페이스를 적용된 감각, 전달된 정보의 종류, 세부 기술, 실감공간기술의 세가지 기본 컨셉트(사람과 사물의 상호작용, 사람과 사람의 상호작용, 사람과 정보 사이의 상호작용), 그리고 미디어 이용 동기 등을 기준으로 분석하고 유형화 해 보고자 한다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제4권2호
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• pp.241-248
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• 2004

Recent paradigm in technology shifts from object-based technology to environment-based technology. Issue here is interaction among humans and the world around humans. The world we consider includes natural and artificial "space." Interactive technology, which explore holistic interactions based on "Mom (embodiment)," suggests a good starting point for exploring this issue. Soft engineering, "Mom," holistic interactions, tangible space, ubiquitous computing, science of emotion, and interactive media are key concepts in interactive technology. Interactive tangible media "iT_Media" is proposed to explore and synthesize these ideas. Interactive technology initiative (ITI) is an interdisciplinary research group to search for the proper technology and the proper way of implementing technology: "interactive technology" or "soft engineering." Some experimental activities conducted by ITI are presented in this paper.tal activities conducted by ITI are presented in this paper.

• 한국식생활문화학회지
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• 제31권2호
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• pp.149-160
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• 2016

This study utilized importance and performance analysis (IPA) in order to improve and plan tangible (menu) and intangible (service) products at dumpling shops. Menu attributes for tangible products were classified into sensory factor, health factor, hygiene factor, and external factor. Attributes for intangible products were classified into response factor, visual factor, spatial factor, package factor, and promotion factor. In IPA analysis of tangible products, sensory factor and hygiene factor were located in Quadrant I (Keep up the good work). Health factor was located in Quadrant III (Low priority for management) and the external factor was located in Quadrant II (Possible overkill). In IPA analysis of intangible products, response factor and visual factor were located in Quadrant I, whereas promotion factor was located in Quadrant III. The attributes related to kindness of staff and space for customers in the store were more important, but due to their low performance level, they were located in Quadrant IV (Concentrate management here). Thus, the product planner should improve attributes of the related product immediately. As a result, the development of competitive products within the market is possible.

• 정보과학회지
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• 제21권2호
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• pp.49-56
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• 2003

• 정보과학회지
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• 제21권5호
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• pp.43-50
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• 2003

• 한국CDE학회논문집
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• 제19권2호
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• pp.111-118
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• 2014

In tangible augmented reality (AR) environments, the user interacts with virtual objects by manipulating their physical counterparts, but he or she often encounters awkward situations in which his or her hands are occluded by the augmented virtual objects, which causes great difficulty in figuring out hand positions, and reduces both immersion and ease of interaction. To solve the problem of such hand occlusion, skin color information has been usefully exploited. In this paper, we propose an approach to simple and effective construction of a skin color map which is suitable for hand segmentation and tangible AR interaction. The basic idea used herein is to obtain hand images used in a target AR environment by simple image subtraction and to represent their color information by a convex polygonal map in the YCbCr color space. We experimentally found that the convex polygonal map is more accurate in representing skin color than a conventional rectangular map. After implementing a solution for resolving hand occlusion using the proposed skin color map construction, we showed its usefulness by applying it to virtual design evaluation of digital handheld products in a tangible AR environment.