• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.177-180
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• 2022

TV에서 OTT로 시청 수단이 변화하면서 스포츠 중계를 보는 젊은 층 시청자들이 줄어들고 있다. 또한 경기장으로 스포츠를 보러 오는 팬들도 점점 감소하는 추세이다. 이에 따라 스포츠 관계자들은 고정 팬 층의 흥미 증진과 신규 팬 층의 유입을 위해 스포츠 관전에 AR(증강 현실) 기술을 도입하고 있다. 모바일 활용과 직관에도 적용 가능한 AR에 대한 업계의 반응은 상대적으로 긍정적이다. 본 논문에서는 AR 스포츠 관전의 사례를 스포츠 중계와 경기장 관전으로 분류해 조사하고 향후 전망에 대해 알아본다. 그리고 AR 스포츠 관전의 활성화에 대한 방안을 제시한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.737-740
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• 2022

본 논문에서는 AR Founation을 이용하여 조명기기를 생활공간에 배치시키는 소비자 맞춤형 증강현실 시스템을 제안한다. 시스템은 조명기기를 다양한 고객의 요구에 맞추어 바닥, 벽면, 천장에 맞게 배치 시킬 수 있는 솔루션을 제공한다. 우선 조명기기를 3D 스캐너를 이용하여 3차원 모델링을 한다. 그리고 모델링된 개체에 블렌더를 이용하여 받침대 및 부수적인 요소를 추가하여 3차원 조명기기를 완성한다. 완성된 조명기기는 사용자의 요구에 따라 3차원 공간상에 위치 시킬 수 있는 기능을 제공한다. 이와 같은 시스템은 스마트 기기를 활용하여 간단한 스마트폰 터치를 통해 손쉬운 공간 설계 지원이 가능하다. 구현된 시스템은 모바일 AR 어플리케이션 개발을 통하여 기존의 AR 어플리케이션의 가구 배치 프로그램에 비해 다양한 연출 효과를 줌으로써 사용자에게 생생한 현장감을 주는데 효과적이다.

• Korean Journal of Construction Engineering and Management
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• v.18 no.2
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• pp.21-29
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• 2017

Recently, with having a great interest of the general public for the AR (Augmented Reality) technology, there have been lots of study to improve efficiency of a construction equipment with applying the AR technology to a construction equipment. The clear extrinsic calibration is essential to applying AR technology at the construction site without any error which came from superimposition between 'Real world' and 'Virtual world'. However, on the construction site, the clear extrinsic calibration is not possible, because of lack of time and budget for the specific survey, also, the huge error of the outdoor tracking system such as gyro, GPS system and so on. In this study, we do research about seamless superposition with unclear extrinsic calibration and the image process method for making AR navigator operating in the excavator. Based on this study, we figure that we can fully develop the AR navigator for the excavator. Furthermore, thereby operating AR navigator at many construction sites, we expect that the efficiency of the excavator will be improved. In addition, we can develop AR navigator for not only a excavator but all about construction equipment.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.563-566
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• 2022

본 논문에서는 증강현실에서 객체 증강 시, 특징점과 GPS를 이용하여 증강 위치를 효율적으로 보간할 수 있는 ICP(Iterative closest point) 매칭 기법을 제안한다. 다양한 환경에서 제한받지 않고 객체를 증강하기 위해 일반적으로 마커리스(Markerless) 방식을 사용하며, 대표적으로 평면 검출과 페이스 검출을 사용한다. 이는 현실과 자연스러운 동기화를 위한 것으로 계산은 작지만, 인식의 범위가 넓기 때문에 증강 위치에 대한 오차가 존재한다. 이러한 작은 오차는 특정 산업에서는 치명적일 수 있으며, 특히 건설이나 의료시설에서 발생하면 큰 사고로 이어진다. 객체를 증강 시킬 때 해당 환경에 대한 점 구름(Point cloud)을 수집하여 데이터베이스에 저장한다. 본 논문에서는 관측되는 점 구름과의 오차를 줄이기 위해 ICP 매칭 기법을 사용하며, 실린더 기반의 각도 보간을 이용하여 계산량을 줄인다. 결과적으로 특징점과 GPS를 이용하여 ICP 매칭 기법을 통해 효율적으로 처리함으로써, 증강 위치에 대한 정확도가 개선된 증강 방식을 보여준다.

• 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.

• 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 Korea Institute of Information and Communication Engineering
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• v.13 no.11
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• pp.2335-2340
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• 2009

This paper presents how to implement Markerless Augmented Reality and how to create and apply reference data sets. There are three parts related with implementation: setting camera, creation of reference data set, and tracking. To create effective reference data sets, we need a 3D model such as CAD model. It is also required to create reference data sets from various viewpoints. We extract the feature points from the mode1 image and then extract 3D positions corresponding to the feature points using ray tracking. These 2D/3D correspondence point sets constitute a reference data set of the model. Reference data sets are constructed for various viewpoints of the model. Fast tracking can be done using a reference data set the most frequently matched with feature points of the present frame and model data near the reference data set.

• Journal of Korea Game Society
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• v.9 no.5
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• pp.105-115
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• 2009

This article proposes a design and implementation methodology of a gesture-based interface for augmented reality games. The topic of gesture-based augmented reality games is a promising area in the immersive future games using human body motions. However, due to the instability of the current motion recognition technologies, most previous development processes have introduced many ad hoc methods to handle the shortcomings and, hence, the game architectures have become highly irregular and inefficient This article proposes an efficient development methodology for gesture-based augmented reality games through prototyping a table tennis game with a gesture interface. We also verify the applicability of the prototyping mechanism by implementing and demonstrating the augmented reality table tennis game. In the experiments, the implemented prototype has stably tracked real rackets to allow fast movements and interactions without delay.

• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.12
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• pp.107-116
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• 2013

We proposed the WSN monitoring system applied the augmented reality to visualize effectively an indoor WSN. To implement system, we used wireless sensor network, indoor location determination, location-based augmented reality technology. First, we composed the wireless sensor networks indoors and implement web server and then get data from server DB using Android phones. Then, we obtained the (x, y) coordinates using the triangulation method from RSSI of three point of the strongest signal strength of the AP's. Also, we adjusted coordinates using the Kalman filter. Finally, we inserted the adjusted coordinates to the latitude and the longitude of the Mixare that use the GPS signal, and we got location of user and wireless sensor in the server DB. After that, we implemented augmented reality system using the android phone and wireless sensor location and data and real life image.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.204-207
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• 2009

This paper presents how to implement Markerless Augmented Reality and how to create and apply reference data sets. There are three parts related with implementation: setting camera, creation of reference data set, and tracking. To create effective reference data sets, we need a 3D model such as CAD model. It is also required to create reference data sets from various viewpoints. We extract the feature points from the model image and then extract 3D positions corresponding to the feature points using ray tracking. These 2D/3D correspondence point sets constitute a reference data set of the model. Reference data sets are constructed for various viewpoints of the model. Fast tracking can be done using a reference data set the most frequently matched with feature points of the present frame and model data near the reference data set.