• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.560-563
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• 2016

The changes in the medical and healthcare are started from the digital technology. The new field of digital healthcare has started fused with existing healthcare, medical technology, and digital technology. It can increase the service effect and reduce healthcare costs by applying ICT skills such as ICBM(Internet of Things, Cloud, Big data and Mobile), artificial intelligence, robotics, virtual, augmented reality, and wearable devices to healthcare services including healthcare, disease management. Recently there has been grafted an artificial intelligence technologies such as AlphaGo of Google and Watson of IBM onto the healthcare area. In this study, we analyze the main technology, ecosystem, platforms for digital healthcare, and lastly future changes in health care services and issues of digital healthcare.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.11a
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• pp.677-679
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• 2020

문화체육관광부와 한국관광공사가 트위터, 페이스북 등 소셜미디어 분석한 것에 따르면, 모바일 여행 서비스가 증가하고 있고 여행자들의 취향이 세분화되고 있는 것으로 나타났다. 이에 따라 개인 맞춤형 여행을 선호하고 숨은 관광지를 찾는 여행자들이 많아지고 있다. 또한, 국내 여행의 수요가 증가하는 상황에서 출시된 주요 어플리케이션을 살펴보면 변화하고 있는 트렌드에 부합하지 않는다. 따라서, 변화하는 트렌드에 맞춰 사용자가 자신에게 맞는 여행을 계획할 수 있도록 사용자 기반으로 한 추천 기능과 유사한 관광지 추천 기능을 추가한다. 세분화된 사용자의 취향에 근접하기 위해 관광지 개요를 기반으로 유사한 관광지 추천 기능을 구현하고 리뷰 감성 분석을 기반으로 사용자 기반 관광지 추천 기능을 구현한다. 뿐만 아니라, 증강현실 내비게이션 기능도 추가한다. 이를 통해 사용자들이 자신에게 맞는 국내 여행을 계획하는 데 도움을 주고 유명한 관광지보다는 숨은 여행지를 선호하는 사용자 그리고 밀집된 관광지에서 목적지를 찾는 것에 불편함이 있는 사용자들에게는 편리함을 제공해 줄 것으로 기대된다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.01a
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• pp.239-240
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• 2022

코로나로 인해 비대면 생활이 지속되면서, 사람들은 실외 운동 및 만남 장소로 한강과 같이 탁 트인 야외를 찾고 있다. 이는 MZ 세대들의 건강과 몸매 가꾸기 등 자기관리에 대한 관심이 증가하는 트렌드와 시너지 효과를 내고 있다. 이러한 현상은 등산, 바디프로필, 필라테스, 헬스, 홈 트레이닝 등 운동에 대한 활동의 비약적 증가로 이어진다. 본 연구에서는 위의 두 가지 트렌드 흐름을 기반으로, 러닝을 시작하고 싶은 초보자들이 한강 공원에서 가볍게 시작할 수 있도록 하는 모바일 운동 앱인 'OnTheRiver'를 설계 및 구현하게 되었다.

• Journal of the Korea Society of Computer and Information
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• v.24 no.11
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• pp.61-69
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• 2019

In this paper, we propose a multisensory(i.e., visual-auditory-tactile) based AR system for the education of cultural heritage. The proposed system provides a multisensory interaction by designing a user to experience with a 3D printed artifact which is mapped by a virtual 3D content of digital heritage. Compared with the existing systems of cultural heritage education based on augmented reality(AR) technology, this system focused on not only providing learning experience via a sense of visual and auditory, but also a sense of tactile. Furthermore, since this systems mainly provided the direct interactions using a 3D printed model, it gives a higher degree of realism than existing system that use touch or click motions on a 2D display of mobile phones and tablets. According to a result of user testing, we concluded that the proposed system delivered the excellent presence and learning flow to users. Particularly, from the usability evaluation, a 3D printed target artifact which is similar in shape to original heritage artifact, achieved the highest scores among the various tested targets.

• Journal of Broadcast Engineering
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• v.21 no.5
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• pp.704-713
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• 2016

Recently, the value and the status of the body that are due to the mobile wearable device have attracted attention globally confusing in media convergence age. The mobile wearable device connect worldwide that are networked to overcome the limitations of space and time, also it provide a great opportunity to be able to us to open a new cultural experience and value to the populace. In this study, spatial information acquired by the virtual reality 360 degrees camera around the Gangnam station. Also, extended spatial experience performed by use of virtual reality headset, smart phone connected to the Youtube platform. Sense of body can also lose its value due to voyeurism, it is facing the transformational period in civilization. In conclusion, through deep research into the intersections of technology and a human being for the future, maintaining the proper balance is the key. Therefore, this study identified the need for interdisciplinary research.

• Journal of Internet Computing and Services
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• v.12 no.1
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• pp.99-110
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• 2011

Mobile environments rapidly changing and digital convergence widely employed, mobile devices including smart phones have been playing a critical role that changes users' lifestyle in the areas of entertainments, businesses and information services. The various services using mobile devices are developing to meet the personal needs of users in the mobile environments. Especially, an LBS (Location-Based Service) is combined with other services and contents such as augmented reality, mobile SNS (Social Network Service), games, and searching, which can provide convenient and useful services to mobile users. In this paper, we design and implement the prototype of mobile personal assistant (PA) agents. Our personal assistant agent helps users do some tasks by hiding the complexity of difficult tasks, performing tasks on behalf of the users, and reflecting the preferences of users. To identify user's preferences and provide personalized services, clustering and classification algorithms of data mining are applied. The clusters of the log data using clustering algorithms are made by measuring the dissimilarity between two objects based on usage patterns. The classification algorithms produce user profiles within each cluster, which make it possible for PA agents to provide users with personalized services and contents. In the experiment, we measured the classification accuracy of user model clustered using clustering algorithms. It turned out that the classification accuracy using our method was increased by 17.42%, compared with that using other clustering algorithms.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.463-466
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• 2011

유무선 초고속 인터넷 연결과 모바일기기의 발달로 사이버공간을 이용하는 멀티미디어 교육용 콘텐츠에 대한 연구가 필요하다. 본 논문에서는 인터넷 가상공간에서 로봇조립에 대한 이해를 돕기 위해서 교육용 콘텐츠를 디자인하고 구현한다. 콘텐츠는 로봇 부품을 사용자가 조립해 나가는 과정으로 플래시 애니메이션 기법과 액션 스크립트을 활용해서 동영상과 상호작용을 조립과정 콘텐츠에 나타내었다. 인터넷 가상공간에서 사용자 중심의 상호 작용을 통하여 로봇 조립과정을 구현함으로써 가상공간에서 사용자 직접 조작으로 조립함으로서 교육효과를 증진시킬 수 있다. 현재의 구현과정은 이미지위주의 제한적 조립과정이지만 향후에는 3차원 모델링기반의 AR(증강현실) 구현으로 발전할 수 있다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.07a
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• pp.267-268
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• 2012

본 논문에서는 Google사의 Project glass를 이용한 피아노 연습 어플리케이션을 제안한다. 하지만 아직 이 기기는 발매되지 않았기 때문에 안드로이드 모바일에서 제작중이다. 사용자악보를 database로 간단하게 관리하고, OpenCV라이브러리를 통해 실제 피아노의 위치와 건반을 인식하고, 손가락의 위치 파악과 소리 인식을 통하여 서로 인식한 정보의 일치여부를 확인한다. 그리고 증강현실 기술을 이용하여 게임적인 요소를 추가시켜서 보다 쉽고, 재미있게 실제 피아노 연습을 할 수 있다. 본 논문에서는 기존에 피아노 연주 연습하는 방식에서 IT기술을 접목시켜서, 교육과 기술발전에 기여할 수 있음을 보인다. 그리고 앞으로 영상처리 기술이 널리 사용될 것으로 예상되어 미리 기술을 학습하는 효과도 있다.

• Journal of the Korea Convergence Society
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• v.10 no.8
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• pp.1-7
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• 2019

This study focused on the usability and the difference between VR and AR technology in the FEM/CFD simulation environments. First, this paper explains the current status and prospect of the VR/AR technology and conducted a case study on the VR and AR service in the FEM/CFD simulation environments. In addition, we made the evaluation strategies for usability by a review of previous research. And then, after Interviewers participants who use of simulation at a specific site C to we investigated the usability of the VR and AR service based on the mobile device in the FEM/CFD simulation environments. The result of this study is look forward to be used as a design service to form a VR and AR service in the future.

• Journal of the Institute of Electronics and Information Engineers
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• v.51 no.2
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• pp.55-68
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• 2014

Some infrastructure these days is usually constructed under the ground for it to not interfere the foot-traffic of pedestrians, and thus, it is difficult to visually confirm the accurate location of the site where the establishments must be buried. These technical difficulties increase the magnitude of the problems that could arise from over-reliance on the experience of the worker or a mere blueprint. Such problems include exposure to flood and collapse. This paper proposes a constructor-oriented visualization system via mobile gadgets in general construction sites with occluded structures. This proposal is consisted with three stages. First, "Stage of detecting manhole and extracting features" detects and extracts the basis point of occluded structures which is unoccluded manhole. Next, "Stage of tracking features" tracks down the extracted features in the previous stage. Lastly, "Stage of visualizing occluded constructions" analyzes and synthesizes the GPS data and 3D objects obtained from mobile gadgets in the previous stages. This proposal implemented ideal method through parallel analysis of manhole detection, feature extraction, and tracking techniques in indoor environment, and confirmed the possibility through occluded water-pipe augmentation in real environment. Also, it offers a practical constructor-oriented environment derived from the augmented 3D results of occluded water-pipings.