• Trans-
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• v.9
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• pp.93-122
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• 2020

I intended to establish Augmented Reality(AR) Museum of 3D Cyber Space where artists and graphic designers can freely create in user integrated environment. This study is aimed at building a sufficient and integrated production environment for artists and graphic designers who utilize three-dimensional simulation methods in integrated development environment(IDE). This study intends to build a 3D simulation engine and a creation module of augment reality of 3D cyber space in Android platform to help artists and graphic designers to freely perform their creation in IDE. Based on these designs, I produced exhibition rooms of National Museum of Contemporary Art in 3D virtual space in which artists and graphic designers can put the graphics they have created on display, conducted a user survey and conducted tasking to an Android smartphone.

• Knowledge Management Research
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• v.23 no.2
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• pp.123-142
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• 2022

The non-face-to-face environment accelerated by COVID-19 has speeded up the dissemination of digital virtual ecosystems and metaverse. In order for the metaverse to be sustainable, digital twins that are compatible with the real world are key, and critical technology for that is AR (Augmented Reality). In this study, we examined research trends about AR, and will propose the directions for future AR research. We conducted LDA based topic modeling on 11,049 abstracts of published domestic and foreign AR related papers from 2009 to Mar 2022, and then looked into AR that was comprehensive research trends, comparison of domestic and foreign research trends, and research trends before and after the popularity of metaverse concepts. As a result, the topics of AR related research were deduced from 11 topics such as device, network communication, surgery, digital twin, education, serious game, camera/vision, color application, therapy, location accuracy, and interface design. After popularity of metaverse, 6 topics were deduced such as camera/vision, training, digital twin, surgical/surgical, interaction performance, and network communication. We will expect, through this study, to encourage active research on metaverse AR with convergent characteristics in multidisciplinary fields and contribute to giving useful implications to practitioners.

• Proceedings of the KIEE Conference
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• 2008.10b
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• pp.505-506
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• 2008

Motion capture system that is used in movies and games today requires large equipments and expensive that it is still not common as a reasonable family game. Therefore, this research project focused on solving these problems mentioned above and move on to develop a new type of approach and by using reasonable family use USB camera and augmented reality to develop a bodily sensation motion capture system which can be used in making a video game. In order to develop this, I used a pair of Marker which can be placed on both hands and one USB camera and the image that was extracted in real time goes through the AR toolkit and ed the 3D coordinates of data and developed a motion capture system.

• Journal of Positioning, Navigation, and Timing
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• v.5 no.3
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• pp.119-129
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• 2016

This paper presents an integrated navigation system for accurate navigation solution-based safety and convenience services in the vehicular augmented reality (AR)-head up display (HUD) system. For lane-level guidance service, especially, an accurate navigation system is essential. To achieve this, an inertial navigation system (INS)/global positioning system (GPS)/vision/digital map (IGVM) integrated navigation system has been developing. In this paper, the concept of the integrated navigation system is introduced and is implemented based on a multi-model switching filter and vehicle status decided by using the GPS data and inertial measurement unit (IMU) measurements. The performance of the implemented navigation system is verified experimentally.

• Management & Information Systems Review
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• v.38 no.2
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• pp.241-254
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• 2019

This study is a study on the consumer reaction to the augmented reality advertisement which is a recent issue. this study was conducted based on the necessity of marketing advertisement technique suitable for the 4th industrial revolution era. First, we present the types of augmented reality ads based on previous studies, and examined the effects of enjoyment and formation of brand attitudes on brand attachment on products or services based on the perceived value of consumers for these types of ads. This study is briefly summarized as follows. Hypothesis (H1) empirical value had a positive effect on pleasure, and hypothesis H2) empirical value also had a positive effect on brand attitude. Hypothesis (H3) symbolic value had a positive effect on pleasure and hypothesis (H4) symbolic value had positive influence on brand attitude. Hypothesis (H5) Practical value has a positive effect on pleasure. Hypothesis (H7) Pleasure affects positively (+) influence on brand attitude. Hypothesis (H8, H9) enjoyment affects affection and brand attitude affects affection positively. Hypothesis (H6) Practical value did not affect brand attitude positively. It can be seen that the augmented reality advertisement communicates with consumers through experience or symbolic side rather than perceive practical value by consumer. The implication of this study is that the augmented reality advertisement is highly interactive with consumers and can induce consumer participation. This means that consumers are more aware of empirical and symbolic values rather than experiencing practical value through augmented reality advertising.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.846-850
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• 2009

본 논문은 픽토그램(Pictogram)의 시각전달 요소를 재해석하고 증강현실 환경에서의 효율적 전달 방법에 대하여 제안한다. 픽토그램은 국경을 넘어 남녀노소 모두가 인지할 수 있어야 함이 규칙이며 불특정 다수라는 사용자들을 위해 정확한 정보를 담고 있는 시각전달 매체로서 공정성, 객관성을 가지고 디자인 되어야 한다. 사용자에게 정보전달 인식을 높이기 위해 표준 픽토그램 과 문화 속에서 발견할 수 있는 행위들을 접목하여 애니메이션으로 제작하고, 이를 다양한 연구분야에서 응용되고 있는 증강현실 (Augmented Reality 또는 AR) 기술에 적용하여 표현하였다. 증강현실은 사용자-콘텐츠 정보전달 매체로서 현실 환경을 기반으로 하는 3 차원공간의 시각정보에 대한 사용자의 인식을 향상시킬 수 있는 방법으로 인간-컴퓨터 상호작용(Human-Computer Interaction)을 제공한다. 본 논문에서 제시된 픽토메이션은 기존 공공장소 어디서나 만날 수 있는 다양한 픽토그램을 패턴화하여 마커로 활용하고 사용자는 현재 널리 보급되고 있는 UMPC 혹은 PDA를 통하여 증강현실 환경에서 제작된 픽토메이션 콘텐츠를 경험해 볼 수 있다. 픽토메이션은 시각커뮤니케이션의 효과를 증가 시킬 수 있고, 정보습득의 주체인 사용자에게 콘텐츠의 종류를 예측할 수 있는 선택의 자유를 준다. 본 논문에서는 멀티미디어디자인 요소를 포함한 콘텐츠와의 실시간 상호작용을 통하여 유희적 요소의 접목을 시도하고 증강현실환경에서 Pictomation을 통하여 사용자들과의 효과적 커뮤니케이션을 위한 방법을 모색하고자 한다.

• Journal of the Korea Computer Graphics Society
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• v.28 no.3
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• pp.125-134
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• 2022

This paper implements an AR manual for a vehicle that can be used even in the vehicle interior space where it is difficult to apply the augmentation method of AR content, which is mainly used, and applies a deep learning model to improve the augmentation matching between real space and virtual objects. Through deep learning, the logo of the steering wheel is recognized regardless of the position, angle, and inclination, and 3D interior space coordinates are generated based on this, and the virtual button is precisely augmented on the actual vehicle parts. Based on the same learning model, the function to recognize the main warning light symbols of the vehicle is also implemented to increase the functionality and usability as an AR manual for vehicles.

• Journal of Broadcast Engineering
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• v.27 no.3
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• pp.341-350
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• 2022

In this paper, we propose a deep learning based on-device augmented reality (AR) system in which multiple input images are used to implement the correct occlusion in a real environment. The proposed system is composed of three technical steps; camera pose estimation, depth estimation, and object augmentation. Each step employs various mobile frameworks to optimize the processing on the on-device environment. Firstly, in the camera pose estimation stage, the massive computation involved in feature extraction is parallelized using OpenCL which is the GPU parallelization framework. Next, in depth estimation, monocular and multiple image-based depth image inference is accelerated using the mobile deep learning framework, i.e. TensorFlow Lite. Finally, object augmentation and occlusion handling are performed on the OpenGL ES mobile graphics framework. The proposed augmented reality system is implemented as an application in the Android environment. We evaluate the performance of the proposed system in terms of augmentation accuracy and the processing time in the mobile as well as PC environments.

• 재활복지
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• v.21 no.2
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• pp.233-246
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• 2017

The present study is a basic study for application of Augmented Reality (AR) to verb teaching for children with language developmental disorders and is intended to examine validity for the list of verbs at the beginning of development. To confirm the validity of the verbs list, the appropriateness of the verbs was evaluated by three professors with certification of KSLP (Korean Speech-Language Pathologist) working in the department of Speech-Language Pathology at the university. The motion validity test was conducted by showing motion implemented as AR to eight master's students in Speech-Language Pathology major, having them record verbs that came to their mind, and evaluating in the conformity. The second motion validity test was conducted by using 5-point Likert scales to 87 undergraduates in Speech-Language Pathology major and having them see the motions in AR and marked the degrees to which them see the motions conform to the relevant verbs on the scales. Using the SPSS 21.0 program, descriptive statics analyses of the results were conducted. Through this all process, thirty verbs were selected as having content validity. It could be seen that when AR based communication system are applied, things and backgrounds that complement the insufficient movements of motions and help motion recognition should be also provided. In future studies, the 3D images of the AR based communication system will be complemented and the content validity will be verified with typically developing children and the children with language developmental disorders.

• International conference on construction engineering and project management
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• 2022.06a
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• pp.1075-1084
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• 2022

The use of Hi-Tech in cultural heritage preservation and the promotion of cultural heritage values in general, particularly artifacts, opens new opportunities for attracting tourists while also posing a challenge due to the need to reward high-quality excursions to visitors historical and cultural values. Building Information Modeling (BIM) and Hi-Tech in new building management have been widely adopted in the construction industry; however, Historic Building Information Modeling (HBIM) is an exciting challenge in 3D modeling and building management. For those reasons, the Scan-to-HBIM approach involves generating an HBIM model for existing buildings from the point cloud data collected by Terrestrial 3D Laser Scanner integrated with Virtual Reality (VR), Augmented Reality (AR), contributes to spatial historic sites simulation for virtual experiences. Therefore, this study aims to (1) generate the application of Virtual Reality, Augmented Reality to Historic Building Information Modeling - based workflows in a case study which is a monument in the city; (2) evaluate the application of these technologies to improve awareness of visitors related to the promotion of historical values by surveying the experience before and after using this application. The findings shed light on the barriers that prevent users from utilizing technologies and problem-solving solutions. According to the survey results, after experiencing virtual tours through applications and video explanations, participant's perception of the case study improved. When combined with emerging Hi-Tech and immersive interactive games, the Historic Building Information Modeling helps increase information transmission to improve visitor awareness and promote heritage values.