• Proceedings of the Korean Society of Computer Information Conference
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• 2024.01a
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• pp.219-220
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• 2024

본 논문에서는 예비유아교사를 위한 VR·AR 활용한 수업 모형에 관한 연구이다. 최근 4차산업혁명시대를 맞아 유아교육 분야에서 디지털교육 등 다양한 기술을 활용한 활동에 관한 요구는 많이 있으나 예비유아교사 및 유아에게 새로운 IT기술을 활용하여 누리과정 연계 및 놀이중심 활동을 적용하는 데에는 많은 어려움이 있다. 왜냐하면 최신 기술을 유아들의 활동에 접목하려면 IT 기술 이해와 경험 뿐 만 아니라 유아에 대한 발달수준, 누리과정에 대한 이해, 놀이중심 교육과정 등에 대한 심도있는 융합이 필요하기 때문이다. 따라서 본 연구에서 VR·AR 활용한 수업 모형으로 예비유아교사를 교육함과 동시에 이를 통해 유아들에게 다양한 체험과 놀이가 가능한 활동을 제안하고자 한다. 이는 최신 멀티미디어기술로써 VR·AR 활용하므로 예비유아교사 및 유아들에게 융복합적인 교육효과를 줄 수 있으므로 유아교육분야에 기여하는 바가 크다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.05a
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• pp.538-541
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• 2014

With the increased market demand for advanced specifications in smart phones, smart phones that have functions with wireless communications with high speed, cameras with high pixel and with high graphic processing ability have appeared. Furthermore, as traditional Augmented Reality technology has been practicable in mobile devices, many application's use AR technology, so AR's portability has been increased. But application with AR technology, which was implemented in smart phones has created capacity issues as applications are taking up a large portion of the memory capacity of phones. This research designed and implemented optimized AR technology by Mixare, AR open source, to solve such problems. As a result, I assured that there has been a decrease in application's memory used on the basis of mobiles.

• International Journal of Internet, Broadcasting and Communication
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• v.9 no.3
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• pp.1-8
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• 2017

Recently, the development of the head mounted display (HMD) device has attracted a great deal of attention to the actual contents. Especially, Augmented Reality (AR), which is a mixture of actual information and virtual world information, is focused on. AR HMD is able to interact by arranging virtual objects in real space through spatial recognition using depth camera. In order to naturally mix virtual space with real space, it is necessary to develop a technology for realizing spatial mapping information with high accuracy. The purpose of this paper is to evaluate the optimal configuration of augmented reality application program by realizing accurate spatial mapping information when mapping a real space and an object placement environment using HoloLens. To do this, we changed the spatial mapping information in real space to three levels, which are the number of meshes used in cubic meters to scan step by step. After that, it was compared with the 3D model obtained by changing the actual space and mesh number. Experimental result shows that the higher the number of meshes used in cubic meters, the higher the accuracy between real space and spatial mapping. This paper is expected to be applied to augmented reality application programs that require scanning of highly mapped spatial mapping information.

• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.2
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• pp.439-445
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• 2012

IT convergence technology is gradually becoming anthropocentric and evolving based on the low-carbon green growth. Augmented reality technique is a contents convergence technology that can mix virtual objects while maintaining a sense of the real world. For that reason, interaction between user and system is possible, can make various applications, and has a high possibility for expandability. To expand the scope of existing interaction, this paper suggests contextual UX-based augmented reality system. It is a system which creates virtual objects that respond to the changes in the real world environment, and users can directly apply their personal preferences to virtual objects. Also, several virtual objects can be registered all at once, and even shows animations corresponding to either day and night according to the brightness of illumination. As said, it improves user's satisfaction through a system of mixed usability, and leads to a continuous use of augmented reality contents.

• Journal of The Korean Association of Information Education
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• v.16 no.2
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• pp.201-209
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• 2012

The 2009 revised curriculum has been revised to increase the time allocated to creative discretion. Accordingly, in many schools, discretionary activities have been replaced by reading and essay writing. However, these activities do not differ from existing classes and student's interest in those activities is minimal. This study has applied two kind of the AR program, which is designed and implemented using Smartphone in the classroom, to increase student's interest. A browser-based AR, created by Junaio and QCAR-authored Smartphone-based AR fairy tale book, are easy to use in class by the students themselves. We applies to Fourth grade student in reading education this AR programs. As a result of test, the students in actual reading classes responded that their interest in the lesson and their understanding of fairy tales has increased.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.2
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• pp.305-310
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• 2015

Recently, as AR(Augmented Reality) technology develops, it is used in field of diverse industry and specially affects structures and human interaction in field of architecture. This paper proposes 3D visualization application for realistic experience of structures by using outdoor AR technology. Proposed application visualizes structures such as high buildings, bridges, ships, and so on to be constructed in future, considering ambient environment by using outdoor AR technology, provides precisely user structures after completing construction and offers more realistic information and immersion as compared with previous methods.

• The Journal of the Korea Contents Association
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• v.20 no.7
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• pp.417-428
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• 2020

Augmented reality(AR) service as one of the representative technologies in the era of the 4th industrial revolution has gotten people's increasing attention. At this time, this study aimed to examine the determinants affecting service satisfaction of the AR-based camera application service by focusing on Naver's service. Several factors that might have influences on satisfaction of the AR-based camera application service were conceived based on the previous literature. And it was tested whether they had influences on satisfaction of the AR-based camera application service or not empirically. The responses of a sample of 312 people who had experienced using Naver's service were collected by means of an online survey and they were analyzed employing a hierarchical regression analysis. The results of this research indicated that gender as one of demographic variable, perceived interactivity, aesthetic value, trend following motivation as an extrinsic motivation and playfulness as an intrinsic motivation have significant influences on the service satisfaction of the AR-based camera application service. The results in this study have meanings since they can be used as references for AR service providers to develop more satisfactory AR services.

• Korean Journal of Construction Engineering and Management
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• v.17 no.3
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• pp.116-124
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• 2016

Work efficiency of earth work which is one of the main works occurring in construction site mainly depends on the performance of individual operators of earth work equipment. Consequently, the skill of individual operators of earth work equipment can significantly affect overall construction schedules. Many invisible areas inevitably exist in construction site because of the nature of construction site where occlusions occur from structures being built, installed or moving equipment, moving workers, etc. The lack of visual information regarding tasks critically impedes the effective performance of operators of earth work equipment. AR (Augmented Reality) is a computer technology that superimposes virtual objects onto the real world scene. This characteristic of AR may address the lack of visual informations in earth work process, thus helping to improve the work efficiency of operators of earth work equipment. The purpose of this study is to present a task-visual information map that identifies visual informations required in tasks of earth work and which of the tasks are suitable for AR technology. This study focuses on visual informations in tasks of earth work with excavators. The map was created based on the investigations on the problems of each task of earth work with excavators and visual informations required to address the problems. Through the map, four visual informations were found to be suitable for AR technology to improve the work efficiency of excavator operators. Based on the findings of this study, AR systems for excavators can be developed more effectively.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2013.06a
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• pp.389-390
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• 2013

모바일에서의 증강현실(Augmented Reality :AR) 어플리케이션은 디바이스의 구조상 많은 제약사항이 있기 때문에 데스크탑 환경에 비교하여 접근성이 낮다. 이러한 문제점을 해결하기 위해 다양한 방법의 연구가 진행되고 있다. 본 논문에서는 모바일 기기의 처리량을 줄이기 위해 프로그래밍 가능한 GPU(Graphic Processing Unit)를 이용, 영상처리 알고리즘을 병렬로 처리하고 고속화하여 모바일 AR 어플리케이션의 접근성을 높이는 비마커(Markerless)기반 객체 인식 시스템을 구현한다.

• Journal of Computational Design and Engineering
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• v.2 no.1
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• pp.47-54
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• 2015

In recent years, 3D printers have become popular as a means of outputting geometries designed on CAD or 3D graphics systems. However, the complex user interfaces of standard 3D software can make it difficult for ordinary consumers to design their own objects. Furthermore, models designed on 3D graphics software often have geometrical problems that make them impossible to output on a 3D printer. We propose a novel AR (augmented reality) 3D modeling system with an air-spray like interface. We also propose a new data structure (octet voxel) for representing designed models in such a way that the model is guaranteed to be a complete solid. The target shape is based on a regular polyhedron, and the octet voxel representation is suitable for designing geometrical objects having the same symmetries as the base regular polyhedron. Finally, we conducted a user test and confirmed that users can intuitively design their own ornaments in a short time with a simple user interface.