• Journal of the Korean Chemical Society
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• v.68 no.2
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• pp.93-106
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• 2024

This study investigated differences in presence, immersion, and situational interest in small group learning using augmented reality, based on the degree of tool sharing. 84 eighth-grade students participated in small groups of four. Each group was randomly assigned to one of three environments based on marker and device sharing: the shared environment (shared marker and device usage), the mixed environment (shared marker and individual device usage), and the individual environment (individual marker and device usage). Small group learning using augmented reality was conducted for three class periods, focusing on the "Characteristics of Matter" unit. One-way ANOVA results for the dependent variables revealed that, compared to the shared environment, presence and situational interest were significantly higher in the mixed environment, while immersion and situational interest were significantly higher in the individual environment. MANOVA results for the sub-components of each dependent variable showed significant differences in realness for presence, antecedents and experiences for immersion, and instant enjoyment, novelty, and total interest for situational interest. Analysis of interviews and classroom observations indicated that students in shared and individual environments tended to use their devices individually when utilizing augmented reality. However, in mixed environments, students showed a tendency to use their devices collaboratively, leading to more active interactions. Based on these findings, environments for using tools to enhance the effectiveness of small group learning using augmented reality are discussed.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.5
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• pp.155-161
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• 2013

This paper presented an augmented reality based mobile application of maintenance and management for concrete bridges. For the development of augmented reality system, it was necessary to establish the concrete bridges detail information and history of maintenance that build the database of those. Also, the augmented reality based system required that concrete bridge information presented by the mobile smart phone. Therefore, this study developed an augmented reality based concrete bridge information mobile application-All about Bridge based on android smart phone and smart pad. The proposed All about Bridge application supports a various bridge informations simultaneously using smart phone and augmented reality technology.

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2019.11a
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• pp.38-39
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• 2019

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1995.09a
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• pp.119-124
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• 1995

물류네트워크에서 다루는 문제들은 물류거점의 입지문제, 물류거점의 재고문 제, 수배송문제로 크게 분류해 볼수 있으며 특히 이들 각 문제들은 복합적으 로 관련되어 있는 것이 사실이다. 이러한 물류네트워크모형을 수리적으로 표 현해보면 대규모 혼합 정수계획법이 되어 최적 해를 구하기가 매우 어려울 뿐더러 현실적으로 유리된 가정이 불가피하다. 수리모형의 비현실적인 가정 들을 가능한 줄이고 현실적으로 응용 가능한 방법론을 제시하는 것이 본 연 구의 목적이다. 때문에 단일 최적 해를 찾는 수리계획법 대신 대안별로 분 석.비교평가 할 수 있는 네트워크 시뮬레이션 기법을 이용하였다. 평가척도 는 비용인자와 서비스 수준을 이용하지만 시뮬레이션 기법의 유연성으로 인 해 다양한 평가인자를 접목시킬수 있는 가능성을 제공하였다. 현실성과 실용 성에 주안을 둔 본 연구는 프로그래밍 되어 분석 및 계획수립과정에 활용되 어질수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.1448-1451
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• 2012

파노라마 가상현실이란 특정 장소의 경험을 재현하는 방식으로, 현실 세계의 장소에 직접 가보지 않고 가상 현실 속의 사물이나 정보를 보다 쉽고 빠르게 탐색하고 습득 할 수 있다. 본 논문에서는, 우리는 이상적인 키 포인트를 탐지하는 동적 프로그래밍을 사용하여 함께 이 지점과 인접한 이미지를 병합하고, 부드러운 색상 전환을 위해 이미지를 혼합하는데 사용된다. FAST와 SURF 탐지는 이미지의 확실한 특징을 찾는데 사용되고, 가장 가까운 이웃 알고리즘은 해당되는 특징을 일치시키는데 사용되며, RANSAC을 사용하여 일치하는 키 포인트를 homography로 판단한다. 이러한 방법으로 이미지를 자동 선택하여 스티칭하는 방법을 사용한다.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.11b
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• pp.442-445
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• 2002

기존 증강현실과 같은 합성 추적기법에서, 시점을 확장시켜 깊이감을 얻을 수 있는 다시점 영상기술을 적용하였을 경우 특징추출 및 대응의 연산량은 급격히 증가하며, 넓어진 FOV(field-of-view)는 대응을 어렵게 하여 특징의 흔들림을 초래하고 광원과 가려진 영역의 영향을 증대시켜 시점간의 추적을 어렵게 한다. 이에 본 논문은 등극선 기하조건을 고려한 다시점 실감 영상 합성 추적 기법을 제안한다.

• The Journal of the Korea Contents Association
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• v.13 no.5
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• pp.48-57
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• 2013

Smartphones provide users with environment for communication and sharing information and at the same time play an important role of mobile technology and mobile art development. Smartphone technology-related researches are being accelerated especially with the advent of mobile Augmented Reality(AR) age, but the studies on user participation that is essential for AR content industry were insufficient. In that regard, the assistance from mobile art area that has already developed these characteristics is essential. Thus, this article is to classify mobile art that has not been studied a lot domestically into feature phone usage and smartphone usage and to analyze each example case with the three most used methods. The usage of feature phones which use the sound and images of mobile devices can be divided into three: installation and performing methods, single channel video art method and five senses communication method. On the other hand, the usage of smartphones that use sensors, cameras, GPS and AR can be divided into location-based AR, marker-based AR and markerless AR. Also, as a result of examining mobile AR content utilization technology by industries, combined methods are utilized; tourism and game-related industries use location-based AR, education and medicine-related industries use marker-based AR, and shopping-related industries use markerless AR. The development of AR content industry is expected to be accelerated with mobile art that makes use of combined technology method and constant communication method through active participation of users. The future development direction of mobile AR industry is predicted to have minimized HMD, integration of hologram technology and artificial intelligence and make the most of big data and social network so that we could overcome the technological limitation of AR.

• Journal of Digital Contents Society
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• v.12 no.4
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• pp.519-530
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• 2011

This study purposed to interpret subjectivity, which centers on the concept of virtuality embedded in the process of virtualizing contextual awareness and mixing the boundary between realities and virtual realities for renewing the feeling of time and space represented by augmented realities in daily spaces, from the viewpoint of traditional media. By explaining how the reflection of reality is exposed focusing on immediacy and hypermediacy from the viewpoint of media remediation, we found that, different from conventional media, augmented reality enables the screen to function as a part of subject and play a role and, by doing so, converts it to the complete subject of digital media comprehending observers and operators.

• Journal of the Korea Society of Computer and Information
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• v.28 no.9
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• pp.63-71
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• 2023

Metaverse is a modern new technology that is advancing quickly. The goal of this study is to investigate this technique from the perspective of computer vision as well as general perspective. A thorough analysis of computer vision related Metaverse topics has been done in this study. Its history, method, architecture, benefits, and drawbacks are all covered. The Metaverse's future and the steps that must be taken to adapt to this technology are described. The concepts of Mixed Reality (MR), Augmented Reality (AR), Extended Reality (XR) and Virtual Reality (VR) are briefly discussed. The role of computer vision and its application, advantages and disadvantages and the future research areas are discussed.

• Journal of Digital Convergence
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• v.15 no.9
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• pp.443-452
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• 2017

VR and AR technologies are recognized as one of important technologies during 4th Industrial Revolution Era. Also, the market size of VR/AR are anticipated to grow up to $150 billion by 2020. These technologies are used in theme parks as well as in other industries including games and films. The purpose of this study is to recognize the trend of VR/AR application in theme park attractions and recommend optimal ways for the future applications. The trends were studied from number of publications while future model was developed after visiting theme parks and interviewing the industry experts. As a result, number of theme parks and LBCs(Location Based Center) are using VR/AR in many of their attractions already, but still holds a number of issues. These issues could be overcome if Fun, Efficiency and Technology are considered holistic ways in the future. Further, conformity of the technologies and theme park concept should also be examined.