• 디지털융복합연구
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• 제13권8호
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• pp.245-251
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• 2015

디지털 사이니지 시스템이 윈도우 OS에 장착 된 PC에서 작동 될 경우, 구현 가격이 매우 높다. 이러한 문제점을 해소하고자, 최신 스마트폰에 활용되는 ARM Coretex계열의 멀티코어 프로세서가 탑재된 안드로이드 OS 플랫폼 기반의 저전력 저가격의 디지털 사이니지 시스템과, 원격제어기술을 응용하여 어디서나 광고단말기를 원격제어하고 원격콘텐츠를 관리할 수 있는 융복합형 웹서버 기반의 원격 콘텐츠 관리용 서버프로그램을 개발하였다. 구현된 시스템은 디스플레이를 포함한 일체화된 디지털 사이니지 시스템으로, 저전력 모바일 플랫폼을 최적화한 하드웨어 인터페이스로 설계 구현되었고, 상황정보센서를 이용하여 조도, 온도, 날씨, GPS등의 주변상황 정보를 습득한 서비스 융합형 모델을 구현하는 구조로 설계 구현되었다. 또한 콘텐츠 자동생성 모듈은 컨텐츠 사용자에게 전용 저작 도구와 SMIL 기반의 자동으로 가동되도록 프레임 워크에 의해 규정된 컨텐츠를 제공하고, 사용자 정보 데이터베이스에 저장된 사용자 정보를 참조하여 사용자별 맞춤형 SMIL 컨텐츠를 생성해주는 융복합형 기능이 구현되었다. 개발된 디지털 사이니지 시스템은 기존 윈도우 OS 환경 대비 50% 이상의 소비전력 저감과 16포인트 멀티터치 기능을 구현하였고 상용화를 위한 기본 환경시험성능을 모두 만족하였다.

• 한국전기전자재료학회논문지
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• 제30권6호
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• pp.361-365
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• 2017

In this paper, we investigated the effect of Co content on the microstructural and electrical properties of $Ni_{0.79}Mn_{2.21-x}Co_xO_4$ (x=0 to 0.25) specimens. Solid-state reaction was used to prepare the bulk specimens. XRD (X-ray diffraction) patterns showed that all compositions had a cubic spinel phase. As a result of the microstructural properties, FE-SEM(field-emission scanning electron microscopy) analysis showed a dense structure, and the mean grain size increased from $5.24{\mu}m$ to $7.33{\mu}m$ with an increase of Co content from x=0 to 0.25. All specimens exhibited the typical NTC thermistor characteristics as the electrical resistance exponentially decreased with increasing temperature. The resistivity and the B-value of $Ni_{0.79}Mn_{1.96}Co_{0.25}O_4$ were $2959{\Omega}{\cdot}cm$ and 3719, respectively.

• 한국의류산업학회지
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• 제24권5호
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• pp.545-556
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• 2022

To overcome the pandemic, a new strategy for innovation is in demand throughout the value chains of the fashion industry that emphasize the importance of fashion technology. Accordingly, as various viewpoints and fields of debate are unfolding to consider the direction of change led by fashion technology, it is necessary to make an active value judgment precedent by understanding the differences between various opinions. This study aims to derive keywords from fashion technology used during the pandemic, to infer the characteristics of each type of perspective and to understand their characteristics. For the research, this study combines text mining analysis and content analysis. Text mining analysis is used to find statistical patterns by collecting keywords from big data from online media, and content analysis is used to interpret the data qualitatively. After analyzing the results of this study, the following observations are made. First, the perspective of positive acceptance seeks to maximize the perception and sensory action of fashion through technology; this amplifies experience, an opportunity for innovation and efficiency. Second, critical vigilance highlights the side effects of radical changes in fashion technology, characterized by concerns about capital-centered polarization, threats to human rights, and infringement of creative thinking. Lastly, the perspective of gradual adoption is the gradual convergence of technologies, characterized by the pursuit of an appropriate balance.

• 융합정보논문지
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• 제9권5호
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• pp.1-6
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• 2019

모바일 시장의 확장과 함께 멀티모달 미디어 콘텐츠의 제공을 위한 플랫폼이 다양해지고 있다. 멀티모달 미디어 콘텐츠에는 이종데이터들이 복합적으로 포함되어 있어 사용자들이 선호 콘텐츠를 선택하기 위해 시간과 노력이 요구된다. 따라서 본 논문에서는 추천을 위한 키워드 가중치를 이용한 멀티모달 미디어 콘텐츠 분류를 제안한다. 제안하는 방법은 멀티모달 미디어 콘텐츠의 텍스트 데이터에서 키워드 가중치를 통해 콘텐츠를 가장 잘 나타내는 키워드를 추출한다. 추출된 키워드를 기반으로 서브클래스를 갖는 장르 클래스를 생성하고 이에 적절한 멀티모달 미디어 콘텐츠를 분류한다. 또한 개인화된 추천을 위해 사용자의 선호도 평가를 진행하여 사용자의 콘텐츠 선호도 분석 결과를 기반으로 멀티모달 콘텐츠를 추천한다. 성능평가는 추천 결과의 정확도와 만족도를 통해 우수함을 검증한다. 이는 사용자가 선호하는 장르와 키워드를 모두 고려하여 추천하기 때문에 정확도는 74.62%, 만족도는 69.1%로 높게 나타난다.

• Journal of Information Technology Applications and Management
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• 제28권1호
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• pp.53-61
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• 2021

The year 2020 was a time when the coronavirus infections-19 (COVID-19) caused various changes in society. In particular, the fields that have been conducted face-to-face have been greatly confused by the transition to an online non-face-to-face method, and this is the case with the field of education. There are two main advantages of offline education. The first is that we can improve our understanding through communication with teachers, and the second is that we can develop social skills through interaction with friends. But as online classes progressed due to corona 19, interaction could not be achieved. As a result, the motivation for learning has been reduced due to difficulties in real-time feedback, and the participation rate has been significantly lowered, especially in lower grades, raising concerns about the learning gap that will occur after corona 19. However, there are some cases in which online classes were conducted as effectively as offline classes by utilizing various contents. What they have in common is the use of content. Teachers generally improved the quality of education by linking interesting sights and videos that enhance learning comprehension. The provided video conveys learning-related content into stories, enabling intuitive observation. Many students were already enjoying these videos through VOD (Video on Demand) such as TV and YouTube, they were able to connect their easy access to content and interest in learning. Appropriate use of video content has rather increased the learning effect and should continue after corona 19. Therefore, it is necessary to study methodologies that apply video content efficiently to education. This study looked at the steps that needed content application through the development of education programs, and observed its meaning. Students were curious about the content, motivated to learn and participated in learning on their own. Intuitive learning, conducted through appreciation, play and content production, provided an opportunity to learn on their own in everyday life.

• International journal of advanced smart convergence
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• 제11권2호
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• pp.108-117
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• 2022

The recent development of information and communication technology has a great impact on the audio/video industry. In particular, IP-based AoIP transmission technology and AVB technology are making changes in the audio/video market. Video signal transmission technology has been introduced to the market through a network, but it has not replaced the video switcher function. Video signals in the conference room or classroom are still controlled by the switching device. In order to switch input/output video devices, a cable that is not limited by distance must be connected to the switcher. In addition, the control of the switching device must be performed by a person who has received professional training. In this paper, it is a technology that can be operated even by non-experts by replacing complex video cables (RGB, DVI, HDMI, DP) with LAN cables and enabling IP-based video switching and transmission (Video Mirroring over IP: VMoIP) to replace video switcher equipment. We are going to do this study, I/O videos were controlled in the form of matrix and high-definition videos were transmitted without distortion, and VMoIP is expected to become the standard for video switching systems in the future.

• 한국산업융합학회 논문집
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• 제25권4_2호
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• pp.663-671
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• 2022

Practice through virtual reality can increase the educational effect regardless of time and place, and it is an educational method that is being pursued even in the situation of COVID-19. On the other hand, for VR-based education, related technology development and content development must be made, and experiential methods (flipped learning, blended learning, hybrid learning) must be provided in the educational process. The development scenario was developed with the contents of drone qualification test (ultra-light unmanned multicopter) and drone practice and the possibility of non-face-to-face self-directed learning (flipped learning, blended learning, hybrid learning). It is expected that the quality of vocational education related to drones and the effect of high education will be improved through the contents, and it is thought that it will be possible to suggest a direction for the development of various vocational education contents in non-face-to-face education.

• 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.

• 한국콘텐츠학회논문지
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• 제10권12호
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• pp.146-154
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• 2010

오늘날 '컨버전스'와 '소통'은 모든 분야에서 키워드가 되고 있다. 예술가와 공학자는 새로운 기술에 기반을 둔 협업을 통해 그 동안의 상호단절에서 벗어나 점차 소통하고 있다. 컨버전스 시대에 예술 영역의 인터넷 아트와 기술 영역의 내비게이션과 아이폰에서 오감융합기술의 활용이 돋보인다. 소메라와 미뇨노의 인터넷 아트 $\ll$Riding the Net$\gg$, $\ll$The Living Room$\gg$, $\ll$The Living Web$\gg$은 음성인식을 통한 시각이미지와 촉각을 통한 시 공간 표현을 인터넷과 오감융합기술을 통해 구현하고 있다. 그리고 산업기술에서 내비게이션과 아이폰은 음성인식을 통한 오감융합기술을 적용하여 감성영역을 확장하여 인터넷 아트와 비슷한 기술을 선보인다. 이 연구에서 살펴본 바와 같이, 예술과 기술의 융합적 발전은 디지털 아트와 문화기술 산업의 새로운 지평을 열 것으로 보인다.

• ETRI Journal
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• 제35권2호
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• pp.352-355
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• 2013

Common stereoscopic three-dimensional (3D) display has a convergence and accommodation conflict that violates the natural human cognitive process of viewing. This weakness exposes the challenge in supporting fun factors while eliminating safety problems in the 3D viewing experience. Thus, human factors have become a major research topic. In this letter, we propose a 3D stereoscopic visualization platform that can expand the sense of a 3D space by fusing organically mixed stereoscopic displays to provide a continuous feeling of 3D depth. In addition, we present pilot test results to show the possibility of the technical implementation of the proposed platform and note ongoing research issues to be addressed.