• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.12
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• pp.2312-2317
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• 2017

Museums are converging with digital technology to convey information to viewers in various ways. Augmented reality technology enhances virtual objects seamlessly in the real world, and provides a high sense of immersion and realism because it can use various senses of users in combination with information providing role of exhibits. However, the location-based augmented reality may cause the inaccurate registration of the virtual object with the real world due to the error of the GPS information, and the vision-based augmented reality can be enhanced at the position where the marker is placed. To solve this problem, we implemented the exhibition contents that interact with the real world by using the developed project tango. The exhibited contents were based on Lenovo Phab 2 Pro and Project Tango SDK in Unity 3D. Visitors were able to improve immersion and realism in exhibition contents, and it would be able to combine with various exhibition fields such as shopping malls as well as museums.

• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.5
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• pp.1005-1010
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• 2012

The Augmented Reality, as a technology caught the spotlight as a next generation's technology of inserting 3D virtual objects in the space of reality seen through the camera, can maximize the learning effects by inducing user's absorption and interest using interaction between user and objects. Recently, as the movile devices having excellent mobility and portability are generalized, the diversified augmented reality are introduced using mobile devices. In this article, a 3D fish encyclopedia system augmented from the mobile environment was designed to provide the user with learning contents focusing on the sense of absorption and an interest. This system is intened to provide helps to learn about the fishes by recognizing the pictures of fishes in the encyclopedia as marker, bringing out the 3D model stored in server and displaying in the mobile environment.

• Proceedings of the KAIS Fall Conference
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• 2012.05a
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• pp.201-204
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• 2012

본 논문에서는 가상현실과 증강현실에서 다양한 정보와 촉감을 통한 인지심리학 적인 측면의 햅틱이 사용된 에너지 안전교육을 위한 가상공간을 창출하고, 그 가상공간에서의 안전한 교육을 위한 햅틱기술을 적용한 교육 프로그램 개발을 논 하고자 함이다. 이를 위하여 가상현실 공간에 관하여 논하였으며, 가상공간을 제어할 수 있는 햅틱기술에 관하여 논하고자 한다. 이를 위하여 개발되고 있는 소프트웨어를 통해 안전에 관하여 연구함이 목적이다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2021.06a
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• pp.324-326
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• 2021

증강현실은 현실 공간에 가상의 객체를 합성한 영상을 생성하는 기술이다. 증강현실 기술에 대한 지속적인 수요 증가와 기술 발전이 이루어져 왔으며, 앞으로 사용자에게 현실을 기반으로 생성된 이질감이 느껴지지 않는 정교한 영상을 제공할 수 있으리라 기대할 수 있다. 본 논문에서는 증강현실 기술로 생성된 합성 영상이 정교한 영상임을 판단할 수 있는 객관적인 기준을 마련하기 위해 기존의 머신 러닝 기반의 이미지 분류 모델들로 합성 이미지 예측에 대한 실험을 진행하고 그 결과를 비교한다.

• Journal of the Korean Geographical Society
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• v.48 no.6
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• pp.994-1008
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• 2013

In this paper, we describe two exploratory examples in the use of Augmented Reality (AR) for geographical visualization regarding refinement of visual content in geography textbooks and learning motivation of geography students. Currently, teaching and learning materials with AR technology and their utilization in the geography classroom have become a new topic in geographical research themes, and this trend has increased. Adequate development and utilization of geographical materials is an important starting point for smart education research in geography. This paper describes the system and software, and the implication of marker AR applications for teaching and learning geography in the classroom. For the AR applications to be utilized in geography education, two marker based AR examples, virtual globe and visualization of topographical features, are presented and their utilization aspects are discussed. Finally, from the discussion stated in this paper, it can be inferred that AR is useful for exploring geographical materials, and marker based AR will contribute to progress in spatial science and geographical education research.

• Journal of Korea Spatial Information System Society
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• v.11 no.1
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• pp.195-199
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• 2009

Augmented reality is a field of computer research which deals with the combination of real-world and computer-generated data, where computer graphics objects are blended into real footage in real time and it has tremendous potential in visualizing geospatial information. However, to utilize augmented reality in mobile system, many researches have undergone with GPS or marker based approaches. Localization and tracking of current position become more complex problem when it is used in indoor environments. Many proposed RF based tracking and localization. However, it does cause deployment problems of large sensors and readers. In this paper, we present a noble markerless AR approach for indoor navigation system only using a camera. We will apply this work to mobile seamless indoor/outdoor u-GIS system.

• Journal of the HCI Society of Korea
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• v.8 no.2
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• pp.21-27
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• 2013

Recently, the use of floating hologram has increased in many different aspects, such as exhibitions, education, advertisements, and so on. Especially, the floating hologram that makes use of half-mirror is widely used. Nevertheless, half-mirror, unfortunately, cannot lead users to the perfect three dimensional hologram experience. Even though it can make the vision look to be up on the air, it does not have the capacity to display itself up on the air, which is the ultimate goal of hologram. In addition, it looks inconsistent when a real object is located behind the half-mirror in order to show the convergence of the two (object and the half-mirror). In this paper, we did the study on comparison of 3D space perception for the stereoscopic AR holography. At first, we applied stereoscopic technology to the half-mirror hologram system for the accurate and realistic AR environment. Then, the users can feel as if the real 3D object behind half-mirror and the reflected virtual image are converged much better in the 3D space. Furthermore, by using depth camera, the location and direction of graphics can be controlled to change depending on the user's point of view. This is the effective way to produce augmented stereoscopic images simply and accurately through half-mirror film without any additional devices. What we saw from the user test were applying 3D images and user interaction leads the users to have 3D spatial awareness and realism more effectively and accurately.

• Korean Journal of Remote Sensing
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• v.25 no.2
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• pp.165-173
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• 2009

Augmented Reality technologies offer new possibilities to the exploration of spatial distributed information. In this work we describe the main issues in the development of an Augmented Reality system that allows the annotation of objects or features in the real world captured by a camera. The general operation of this kind of systems is described, as well as the main problems that need to be solved. Finally, as an example of case of study, we present an application for the annotation of information relative to containers in a marine terminal.

• Journal of Korea Game Society
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• v.17 no.2
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• pp.35-44
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• 2017

Recent years have witnessed a surging popularity of games based on augmented reality and virtual reality. While old games embody virtual reality within the game platform, recent popular games based on augmented reality and virtual reality incorporate reality into virtual worlds. They present a new genre that is unprecedented, combined with what gamers have a passionate desire for, and thus provide new experiences. Good examples include smartphone games that were the game changer of the gaming industry in 2010 and the sensational $Pok{\acute{e}}mon$ Go that is gaining popularity nowadays. This study, thus, set out to analyze "gaming act(GA)" directly connected to the experiences of gamers to shed light on games as experiential content. The study analyzed gaming acts based on Park Sang-woo (2009) and assumed that gaming acts would change greatly according to the degree of real space intervening in game space; thus, examining changes to the gaming acts of games in two aspects of realizing virtual space from imaginations in game space and reproducing virtual space in real space.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2017.11a
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• pp.142-143
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• 2017

증강 현실에 대한 관심이 높아지면서, 물체를 자연스럽게 증강시키는 기술이 주목받고 있다. 그 방법 중 하나는 실제 물체처럼 수평면 위에 증강시키는 것이다. 본 논문에서는 카메라 영상과 관성 측정 장치(IMU: inertial measurement unit)를 사용해 물체를 증강시키기 위한 수평면을 찾는 방법을 제안한다. 우선, 수평면을 결정하는 데 기준이 될 3 차원 공간 좌표를 계산하기 위한 방법을 설명한다. 그리고 계산된 좌표들을 바탕으로 수평면을 찾는 방법을 제시한다. 제안한 방법을 사용하면 지면 방향을 이용하기 때문에 증강된 물체가 실제 물체처럼 서있게 할 수 있다.