• 융합정보논문지
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• 제11권11호
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• pp.38-43
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• 2021

증강현실기술을 사용하는 증강현실 게임이 늘어남에 따라 사용자들의 요구도 많아지고 있다. 증강현실 게임에서 사용되는 게임 기술에는 MARKER, MARKERLESS, GPS등을 활용한 게임이 주를 이루고 있다. 이러한 기술을 활용한 게임은 배경과 다른 오브젝트를 증강할 수가 있다. 이 문제를 해결하기 위해 증강현실의 중요한 요소인 배경에서 객체를 분석하여 증강현실 게임을 개발하는데 도움을 주고자 한다. 증강현실 게임에서 배경을 분석하기 위해 UNITY엔진에서 TensorFlow Lite를 활용하여 딥러닝 모델을 적용하여 배경 객체를 분석하였다. 이 결과를 활용하여 배경에서 분석된 객체의 종류에 맞춰 게임에 증강되는 오브젝트를 배치 할 수 있다는 결과를 얻었다. 이 연구를 활용하여 배경에 맞는 오브젝트를 증강하여 향상된 증강현실 게임을 개발 할 수 있을 것이다.

• International Journal of Advanced Culture Technology
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• 제12권1호
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• pp.262-269
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• 2024

The "AR Campus Diary" project innovates in the realm of art through integrating augmented reality (AR) with interactive storytelling, fostering personal and interpersonal development through artistic expression. This artistic endeavor metaphorically represents the growth and fruition of individual stories, facilitated by a series of progressive art activities that emphasize continual interaction between self and others. Set against the backdrop of a university campus, the project employs AR markers designed to unfold stories in phases through a dedicated application, allowing participants to experience and influence the narrative uniquely. Diverging from traditional film editing techniques, "AR Diary" offers viewers the autonomy to navigate through story segments of their choosing, marking a departure from conventional cinematic storytelling by leveraging marker-based plot progression. This project not only showcases the fusion of technology and art but also pioneers a participatory form of art education based on engagement and play.

• 한국초등과학교육학회지:초등과학교육
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• 제36권4호
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• pp.367-378
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• 2017

Because the lessons of 'our body' are based on indirect experiences and simple experiments, various methods are needed to improve the learning effect. In this study, seventeen AR contents were created to be used in five subjects in the 5th grade elementary school. The learning contents implementation were made using QCAR (QualComm's Augmented Reality) and Unity 3D (Unity 3D) program, which are augmented reality software development kits (SDKs). In order to find out the applicability, we applied the developed contents to one grade 5 classroom equipped with internet environment. Participants were asked about their perception of the program and interviewed. As a result, the developed AR learning contents appeared to be available. It was expected to help improve learning and was pointed out that improvement of internet condition and development, also, was needed expansion of various contents should be complemented.

• 국제학술발표논문집
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• The 10th International Conference on Construction Engineering and Project Management
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• pp.909-916
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• 2024

The emergence of Building Information Modelling (BIM), reality data, Virtual Reality (VR), and Augmented Reality (AR) has significantly enhanced the collaboration between stakeholders in construction management. The utilization of VR/AR devices holds considerable potential for monitoring safety in complex and constrained working environments on the construction site. On the other hand, near-miss incidents remain an important early sign of struck-by accidents. However, research on early warning and prevention methods for this risk is still limited. This paper, therefore, presents a framework for on-site and off-site collaborative safety monitoring framework using augmented and virtual reality for near-miss incidents. In the proposed framework, three phases to develop a VR/AR-based safety monitoring system include (1) construction safety simulation environment, (2) localization-based interaction system, and (3) safety monitoring system. The system can undertake the processing of data and enables communication among disparate VR/AR devices. VR clients are observational tools and offer guidance, while the AR client stays onsite for construction tasks. All clients connect to a processing computer, which also works as a host. The system embedded in the AR device can trigger an alarm or receive signals from the VR client when a near-miss issue happens. Additionally, all device clients possess the capability to share data acquired from onsite monitoring cameras, thereby fostering effective discussions and decision-making. The efficacy of this cross-platform system has been validated through the implementation of an outdoor coordination case study.

• Journal of Information Processing Systems
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• 제16권5호
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• pp.1214-1222
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• 2020

Pervasive augmented reality (AR) technology can be used to efficiently search for the required information regarding products in stores through text augmentation in an Internet of Things (IoT) environment. The evolution of context awareness and image processing technologies are the main driving forces that realize this type of AR service. One of the problems to be addressed in the service is that augmented objects are fixed and cannot be replaced efficiently in real time. To address this problem, a real-time mobile AR framework is proposed. In this framework, an optimal object to be augmented is selected based on object similarity comparison, and the augmented objects are efficiently managed using distributed metadata servers to adapt to the user requirements, in a given situation. To evaluate the feasibility of the proposed framework, a prototype system was implemented, and a qualitative evaluation based on questionnaires was conducted. The experimental results show that the proposed framework provides a better user experience than existing features in smartphones, and through fast AR service, the users are able to conveniently obtain additional information on products or objects.

• 한국정보통신학회논문지
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• 제16권1호
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• pp.205-211
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• 2012

본 논문에서는 스마트폰의 위치 정보를 활용한 모바일 증강현실에서 사용자 상황에 적합한 가상 정보를 제공하기 위한 상황인지 기반 증강현실 플랫폼을 제안하였다. 기존 증강현실 응용들과 플랫폼 분석을 통해 3가지 문제점을 추출하고 이를 바탕으로 플랫폼 아키텍처와 6개 구성요소별 기능과 정보 전달 체계를 설계하였다. 제안하는 상황인지 기반 증강현실 플랫폼은 사용자 적합 정보 추출을 위해 상황추론서비스 요소를 포함하며, POI(Points of Interest) 데이터 호환 문제를 해결하기 위해 가상세계 정보가 저장된 외부 가상세계 네트워크로부터 내부 플랫폼을 분리하였다.

• 한국멀티미디어학회논문지
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• 제23권11호
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• pp.1428-1434
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• 2020

Virtual reality (VR) and augmented reality (AR) technologies can interact intuitively using virtual 3D images. Information signs on buildings that are frequently used by the public play a very important role in conveying information. However, the current information sign has different understanding and interpretation, and it is difficult to communicate quickly and intuitively for interaction. The purpose of this study is to increase the efficiency of information signing through information provision using mobile augmented reality. The InfoAR app not only guides you to the destination of the building, but also acts as a marker for the logo image. The logo image created based on the feature points recognizes the information of the destination. It is converted to AR through a mobile app, allowing users to easily find their destination by obtaining specific information. In addition, it presents interactions that can enlarge, reduce, move, and rotate information about virtual objects augmented through a function called AR. In the future, if user convenience and usability of the interface are added, research is conducted, and the level of completion is improved, such as using VR contents and promotions and business cards, it is expected that highly useful contents will be produced.

• 대한치과의료관리학회지
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• 제8권1호
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• pp.24-29
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• 2020

With the advancement of information technology, the application of augmented reality (AR) in dentistry is an emerging research field of image-guided surgery and dental education. In addition, the digital approach to incorporating AR in dental practice management is considered to be feasible. A prototype is developed to apply AR to dental daily clinical practice in order to help dentists to access electronic dental records. This prototype delivers patients' information and related clinical data to dental clinicians directly without the need to search for the appropriate patients. Wearable AR devices are considered to be a convenient tool for practicing dentists because dental practitioners are not always able to use a computer during active clinical sessions, such as implant placement, root canal treatment, and patient-doctor communication. The use of AR to visualize passive transferred patient data would be valuable for practicing dentists.

• Journal of Information Processing Systems
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• 제12권4호
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• pp.612-630
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• 2016

As mobile augmented reality technologies are spreading these days, many users want to produce augmented reality (AR) contents what they need by themselves. To keep pace with such needs, we have developed a mobile AR contents builder (hereafter referred to as MARB) that enables the user to easily connect a natural marker and a virtual object with various interaction events that are used to manipulate the virtual object in a mobile environment so that users can simply produce an AR content using natural photos and virtual objects that they select. MARB consists of five major modules-target manger, virtual object manager, AR accessory manager, AR content manager, and AR viewer. The target manager, virtual object manager and AR accessory manager register and manage natural target markers, various virtual objects and content accessories (such as various decorating images), respectively. The AR content manger defines a connection between a target and a virtual object with enabling various interactions for the desired functions such as translation/rotation/scaling of the virtual object, playing of a music, etc. AR viewer augments various virtual objects (such as 2D images, 3D models and video clips) on the pertinent target. MARB has been developed in a mobile application (app) format in order to create AR contents simply using mobile smart devices without switching to a PC environment for authoring the content. In this paper, we present the detail organizations and applications of MARB. It is expected that MARB will enable ordinary users to produce diverse mobile AR contents for various purposes with ease and contribute to expanding the mobile AR market based on spread of a variety of AR contents.

• 한국CDE학회논문집
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• 제21권4호
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• pp.397-408
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• 2016

VR and AR are widely used in many applications to provide more immersive visualization and natural interaction for learning and experiencing virtual but realistic tasks. Energy saving is considered as one of the most important issues throughout the world in order to overcome global warming and energy crisis. In particular, the awareness of home energy saving is regarded as a first step to deal with this issue. In this paper, we suggest a new learning environment using virtual and augmented reality (VR/AR) for home energy saving experience. In particular, it presents a comparative study of the user experience in home energy awareness using immersive virtual reality and mobile augmented reality. The first person user experience using immersive VR wearing head mounted display (HMD) and the third person user experience using mobile AR are implemented and systematically compared with each other in terms of the learning effect of energy saving and qualitative usability. Implementation results will be given to show the advantage and effectiveness of the proposed approach.