• Journal of information and communication convergence engineering
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• v.17 no.4
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• pp.274-278
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• 2019

It is important that students are provided opportunities to practice their skills in acquiring radiographic images. However, these opportunities are currently limited because of the risk of radiation exposure. To overcome this limitation, a new augmented reality-based radiography simulator was developed that enables students to practice radiographic techniques as part of self-directed learning without time and space constraints. Subsequently, cross-sectional images of a manikin phantom head obtained via computed tomography were reconstructed into a three-dimensional object. An image marker that could be recognized by a mobile device and could allow users to practice dental radiography techniques was devised. The three-dimensional object was augmented to the mobile device; consequently, among 106 stored dental radiographs on the device, a radiograph corresponding to specific imaging conditions was opened when users performed radiographic procedures. This technology could improve dental students' understanding of dental anatomy and contribute to improving their competency in acquiring dental radiographs.

• Journal of Convergence for Information Technology
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• v.9 no.1
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• pp.92-98
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• 2019

Due to the development of hologram display technology, various studies are being conducted to provide realistic contents for augmented reality. In the case of the HMD for hologram, since augmented reality objects must be rendered by a small processor, it is necessary to use a low-capacity content. To solve this problem, there is a need for a technique of rendering resources by providing resources through a network. In the case of the existing augmented reality system, there is no problem of contents modulation because the resources are loaded and rendered in the internal storage space. However, when providing resources through the network, security problems such as content tampering and malicious code insertion should be considered. Therefore, in this paper, we propose a network rendering technique applying security techniques to provide augmented reality contents in a holographic HMD device.

• The Journal of Society for e-Business Studies
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• v.16 no.1
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• pp.35-47
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• 2011

Augmented reality applications offering location based service on smart phone require attention to users and new usability evaluation methods. The aim of this paper is to introduce new usability principles for application development and usability evaluation, and conduct expert evaluation on the augmented reality applications. We created a set of usability principles by analyzing characteristic of augmented reality applications, and conducted expert evaluation on three augmented reality applications primarily used by smart phone users. In expert evaluation and filtering procedure, we identified six usability problems that three applications have in common and the improvement guideline for the usability problems. The results of expert evaluation was verified by user test with a prototype that was developed using the guidelines. It is expect that the results of this study can be presented usability principles of the augmented reality application and a method of usability evaluation in the middle of new technology development process.

• The Journal of the Korea Contents Association
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• v.10 no.10
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• pp.86-93
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• 2010

With the introduction of smart phones, the augmented reality became popular and is increasingly drawing attention. The augmented reality in the mobile devices is becoming an individual area to study. Many applications of the augmented reality have been studied, but there are just a few studies on its combination with artificial intelligence in games. In this study, an artificial intelligence algorithm was proposed, which dynamically converts the state of the 3D agent in the augmented reality environment using the 3-Axis acceleration sensor in the smart phone. To control the state of the agent to which the artificial intelligence is applied, users used to directly enter the data or use markers to detect them. The critical values, which were determined via test, were given to the acceleration sensor to ensure accurate state conversion. In this paper, makerless tracking technology was used to implement the augmented reality, and the state of the agent was dynamically converted using the 3-Axis acceleration seonsor.

• The Journal of the Korea Contents Association
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• v.16 no.1
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• pp.720-733
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• 2016

Using various types of educational media plays an important role in educating students with disabilities. In recent years, augmented reality has emerged as an important technology that can increase the effectiveness of special education programs. This study developed augmented reality contents focusing on the theme 'Weather and Life' in the 'Na' unit of the Basic Special School Curriculum, and explored the possibility of applying the contents to the science education. The contents design instructions and educational programs for this study were developed based on a focus-group interview conducted with five special school teachers and two developers. To explore the possibility of applying the augmented reality contents, a usability evaluation was conducted with 23 special school teachers and 18 students with intellectual disability. The results showed that the augmented reality contents had a high level of usability as the special school teachers received 4.73 and the students with intellectual disability received 4.75 out of 5. As a result of this study, we can draw a conclusion that there is a high possibility of applying augmented reality contents to science education for students with intellectual disability.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.625-627
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• 2018

본 연구는 전 연령 및 아동을 대상으로 하는 모바일 AR(Augmented Reality, 증강현실) 기반의 스마트폰 어플리케이션을 설계 제안하고, 아동이 사용가능한 교육용 책 교구를 설명한다. 현재 시중에 출시된 어플리케이션에 대해 분석하고, 사용자의 동기유발과 집중력 향상을 목적으로 학습 구조를 도출한다. 학습의 집중을 위한 단순한 사용자 인터페이스를 설계하여, 증강현실 기술과 접목한다. 본 연구를 통해 사용자는 책이 가진 지식의 보고를 유지하며 스마트 폰을 통한 자율학습을 유지할 수 있다. 경제적 소비 감소와 스마트 폰의 활용도를 기대할 수 있다.

• International Journal of Contents
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• v.15 no.3
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• pp.21-31
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• 2019

This study employs an experimental design to investigate the conditions under which the use of AR may be particularly effective or rather ineffective in advertising contexts. We first discuss the inconsistent results regarding the effectiveness of AR on advertising message comprehension and argue that these inconsistencies can be at least partly explained by the moderating effect of an individual's resistance to innovation (i.e., AR technologies). We then provide statistically significant interaction effects between ad types (AR-based, traditional 2D) and innovation resistance. Finally, we suggest that the effect of AR on certain variables is constrained or unconstrained by an individual's level of receptivity or resistance to a new technology-based advertising platform, and that flow experience is equivalent regardless of these levels.

• Journal of Korea Multimedia Society
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• v.21 no.6
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• pp.712-722
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• 2018

This study investigates the merits of incorporating augmented reality in mobile games and proposes a mobile game application that combines augmented reality technology with gaming. The proposed study postulates that augmented reality technology can be employed for developing games on smartphones. The proposed application involves the implementation of a 3D virtual object in the real world by incorporating a target image. The proposed application also employs an intuitive interface with simplified manipulation based on touch, and allows players to collect and combine items for acquiring new items, thus making it elementary to pass the game stages. Furthermore, a ranking system has been introduced in the proposed application for enhancing the amusement factor of the game. The novelty of the proposed application lies in the fact that the virtual button function has been employed for combining physical and virtual objects while playing the game, without incorporating location-based services.

• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.4
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• pp.177-184
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• 2012

A hologram projects a 3 dimensional video as same as a real subject and it is made by principles of holography. Many researches about holographic technology have been developed. Studies for visualization of 3D videos, holographic storages, and optical media have proceeded mostly in engineering. It is hard to find any researches about the convergent system from the viewpoint of interactive elements and motion graphic design such as this paper's concept. Most studies of augmented reality have been developed in the domain of technology and education but the field of content production. AR has been convergent with various fields and media, so it is time to make an active progress in the study of convergent content development. The goal of this study is to develop cultural contents and create new values through the convergence of holography and AR. The purpose of this paper is to propose the way of developing the convergent type of cultural contents and construct the production system by the new approach to users using the convergence technology of holography and augmented reality.

• Journal of Convergence for Information Technology
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• v.7 no.1
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• pp.17-24
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• 2017

In the medical field, augmented reality is being used for surgical and medical education. However, augmented reality technology is not applied to emergency patients. In this paper, we propose a medical service support model that can support rapid medical service to emergency patients through an augmented reality - based IT device. The proposed model has the function of collecting the information necessary for the first aid simply through the IT equipment based on the reality of reality, and also receiving the first aid method appropriate for the emergency situation to the medical staff and supporting the service. In addition, the proposed model hierarchically collects information related to emergency patient information inquiry, emergency patient status and emergency treatment based on Analytic Hierarchy Process (AHP). The collected information uses a pair of comparison matrices to compensate for the ambiguity between the information. In particular, the collected information is stored in the server of the medical staff, and in addition to the unique information of the collected information, the collected information can be reflected in the medical service of the medical staff.