• Journal of Electrical Engineering and Technology
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• 제9권2호
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• pp.762-770
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• 2014

Tangible Space Initiative (TSI) is a new framework that can provide a more natural and intuitive Human Computer Interface for users. This is composed of three cooperative components: a Tangible Interface, Responsive Cyber Space, and Tangible Agent. In this paper we present a Tangible Tele-Meeting system in TSI, which allows people to communicate with each other without any spatial limitation. In addition, we introduce a method for registering a Tangible Avatar with a Tangible Agent. The suggested method is based on relative pose estimation between the user and the Tangible Agent. Experimental results show that the user can experience an interaction environment that is more natural and intelligent than that provided by conventional tele-meeting systems.

• 한국콘텐츠학회논문지
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• 제5권3호
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• pp.53-61
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• 2005

본 연구는 VR-Tangible Interaction 기술의 발전 현황을 고찰하고 이를 활용한 산업화 콘텐츠 개발의 가능성을 시사하였으며, 사례로서 VR-Tangible Interaction 기술을 활용하여 발달장애 치료 프로그램 및 치료 시스템의 개발을 진행하였다. 발달장애 치료 프로그램은 현재 임상 현장에서 이루어지는 치료의 내용을 관찰 분석하여 치료에 사용된 인터렉션의 특징을 추출하였고, 이를 VR-Tangible Interaction시스템에 적용하여 시간, 인력, 장소의 경제성 및 치료 몰입감이 높으면서 반복 치료를 효과적으로 수행할 수 있는 발달장애 치료 시스템 구성과 콘텐츠 시나리오를 제안하였다.

• 한국CDE학회논문집
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• 제16권4호
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• pp.277-284
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• 2011

In tangible augmented reality (AR) environments for virtual prototyping, the user interacts with virtual products by manipulating tangible objects with his or her hands, but the user often encounter awkward situations in which his or her hands are occluded by augmented virtual objects, which reduces both immersion and ease of interaction. In this paper, we present how to resolve such hand region occlusion in order to enhance natural interaction and immersive visualization. In the AR environment considered, we use two types (product-type and pointer-type) of tangible objects for tangible user interaction with a virtual product of interest. Holding the tangible objects with his or her hands, the user can create input events by touching specified regions of the product-type tangible object with the pointer-type tangible object. We developed a method for resolving hand region occlusion frequently arising during such user interaction, It first detect hand region in a real image and refines the rendered image of the virtual object by subtracting the hand region from the rendered image, Then, it superimposes the refined image onto the real image to obtain an image in which the occlusion is resolved. Incorporated into tangible AR interaction for virtual prototyping of handheld products such as cellular phones and MP3 players, the method has been found by a preliminary user study that it is not only useful to improve natural interaction and immersive visualization of virtual products, but also helpful for making the users experience the products' shapes and functions better.

• Educational Technology International
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• 제19권2호
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• pp.199-228
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• 2018

The main purposes of this study were (a) to analyze the research trend of educational use of tangible technology, (b) to identify tangible learning mechanisms, and potential benefits of learning with tangible technology, and (c) to provide references and future research directions. We conducted a systematic literature review to search for academic papers published in recent five years (from 2013 to 2017) in the major databases. Forty papers were coded and analyzed by the established coding framework in four dimensions: (a) basic publication information, (b) learning context, (c) learning mechanism, and (d) learning benefits. Overall, the results show that tangible technology has been used more for young learners in the kindergarten and primary school contexts mainly for science learning, to achieve both cognitive and affective learning outcomes, by coupling tangible objects with tabletops and desktop computers. From the synthesis of the review findings, this study suggests that the affordances of tangible technology useful for learning include embodied interaction, physical manipulations, and the physical-digital representational mapping. With such technical affordances, tangible technologies have the great potential in three particular areas in education: (a) learning spatial relationships, (b) making the invisible visible, and (c) reinforcing abstract concepts through the correspondence of representations. In conclusion, we suggest some areas for future research endeavors.

• 한국콘텐츠학회논문지
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• 제22권1호
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• pp.47-57
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• 2022

포스트 코로나 이후 스포츠, 체육, 피트니스 등의 언텍트 환경기반 서비스가 확장되면서 VRAR 기술이 접목된 실감 콘텐츠의 요구가 확대되고 있다. 주요한 핵심기술은 센서기술을 통한 이용자 실감 데이터 제공 및 분석, 동작 인식 센서를 통한 이용자 신체 움직임 감지 및 신체 골격 포인트 지점의 실시간 측정, 다중접속 실시간 영상, AI 트레이닝 등의 다양한 기술이 활용되고 있다. 이에 본 연구는 실내기반 비대면 환경의 체육, 스포츠, 피트니스 등에 필요한 실감 콘텐츠에 관한 개발 사례 연구로 동작 인식 센서기술을 활용하여 실감 콘텐츠 개발에 필요한 측정평가 기획접근을 통하여 신체측정 실감 콘텐츠 개발 사례를 제시하였다. 실감 콘텐츠 기획은 테스트를 통해서 측정평가 기능을 활용할 수 있는 범위 안에서 전문가의 자문내용을 바탕으로 측정평가 항목을 수립하였고 실감 콘텐츠의 평가 측정 요소로 반영하여 개발에 적용하였다. 해당 연구는 스포츠 및 체육 교육 분야의 비대면 실감 콘텐츠 연구의 참고사례 및 해당 콘텐츠를 개발하고자 하는 산업체의 기획접근 참고내용으로 활용될 수 있다.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2003년도 가을학술발표대회
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• pp.102-103
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• 2003

• 한국정밀공학회지
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• 제21권11호
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• pp.7-11
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• 2004

• 한국병원경영학회지
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• 제15권2호
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• pp.1-14
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• 2010

This study tried to analyze about the investment effects on the spent capital and possessed tangible assets of some hospitals during their hospital management. For this analysis purpose, this study used the financial data of 100 hospitals which presented their financial statements to an finance-information company from 2004 to 2006. The analysis was done with PEFR(Percentage of External Funds Required) and Tangible Asset. The FEPR considered the retained interior fund relating to the investment types in the hospital industry. And the Tangible Asset was related to the possession condition of facilities and equipment. The EBIT rate(Earnings before interest and tax to sales) meaning the management performance and tangible asset turnover were used as the measured variables of investment effect. As the result of data analysis, it was identified that the tangible asset like the hospitals's facilities and equipment was not an agent significantly to influence on the management performance(EBIT rate), the eventual goal of hospital management. But, it was identified that there was some differences tangible asset turnover according to each hospital's main characteristics. And at targeting the all sample hospitals, it was found that the management performance(EBIT rate) had some significant effect on the retained earnings rate, a part of source of PEFR.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.2687-2692
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• 2003

Recent advancement in information technology requires new interpretations for the space among human, machines and environment. Investigation of space between information and human could lead to the proper ways, in which human and machines meet. Various concepts regarding space have been explored in terms of “virtual reality in cyberspace” and “embodiment in tangible space.” “Mom (embodiment),” space, virtuality, sensation/perception, and interactive technology are some of the key ideas to be explored. Human “Mom” is such a fundamental membrane through which human can interact with the environment physically and mentally. An embodied interaction paradigm, based on “Mom,” is investigated. This leads to interactive technology paradigm. Sound space is an invisible but a tangible space in a sense that it travels in emotional tremors and stimulates new sensations and perceptions. Three cases are introduced to experiment such tangible space as a new and proper interactive paradigm. Also, a historical model of interaction is reviewed, which includes electrical, symbolic, textual, graphical, tangible, and social interaction.

• 한국컴퓨터정보학회논문지
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• 제20권9호
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• pp.47-53
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• 2015

In this paper, we propose a novel tangible interface system whose system does not use the expensive hardware is introduced. This proposed tangible interface is used on the table top capacitive multi touch-screen. The tangible interface apparatus which is called smart puck has sanguine arduino compatible board. The board has a Cds photo-sensing sensor and the EPP8266 WiFi module. The Cds sensor decodes the photometric PWM signals from the system and sends corresponding information to the system via TCP/IP. The system has a server called MT-Server to communicate with the smart pucks. The tangible interface shows reliable operation with fast response that is compatible to the expensive traditional devices in the market.