• International Journal of Internet, Broadcasting and Communication
• /
• v.15 no.4
• /
• pp.215-222
• /
• 2023

Augmented reality (AR), which integrates virtual media into reality, is increasingly utilized across various industrial sectors, thanks to advancements in 3D graphics and mobile device technologies. The IT industry is thus carrying out active R&D activities about AR platforms. Google plays a significant role in the AR landscape, with a focus on ARCore services. An essential aspect of ARCore is the use of anchors, which serve as reference points that help maintain the position and orientation of virtual objects within the physical environment. However, if the accuracy of anchor positioning is suboptimal when running AR content, it can significantly diminish the user's immersive experience. We are to assess the performance of these anchors in this study. To conduct the performance evaluation, virtual 3D objects, matching the shape and size of real-world objects, we strategically positioned ourselves to overlap with their physical counterparts. Images of both real and virtual objects were captured from five distinct camera trajectories, and ARCore's performance was analyzed by examining the difference between these captured images.

• Journal of Korea Game Society
• /
• v.19 no.5
• /
• pp.91-102
• /
• 2019

In this paper, we propose an improved method of plane tracking in developing AR games for smartphones using magnetic field sensor. The previous method based on ARCore is a VIO method using a mixture of SLAM and IMU of smartphones. The disadvantages of accelerometers and gyroscopes in IMUs cause errors in tracking the plane. We propose an improved method of planar tracking by adding the magnetic field sensor as well as the existing IMU sensors. Experimental results shows that our method reduces the error of the smartphone posture estimation.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.22 no.1
• /
• pp.111-120
• /
• 2022

It is essential to make a purchase decision to make sure that the furniture matches well with other structures in the room. Moreover, in the Untact Marketing situation caused by the COVID-19 crisis, this is becoming an even more impact factor. Accordingly, methods of measuring length using AR(Augmented Reality) are emerging with the advent of AR open sources such as ARCore and ARKit for furniture arrangement interior simulation. Since this existing method using AR generates a Depth Map based on a flat camera image and it also involves complex three-dimensional calculations, limitations are revealed in work that requires the information of accurate room size using a smartphone. In this paper, we propose a method to accurately measure the size of a room using only the accelerometer and gyroscope sensors built in smartphones without using ARCore or ARKit. In addition, as an example of application using the presented technique, a method for applying a pre-designed room interior to each room is presented.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2019.10a
• /
• pp.684-686
• /
• 2019

증강현실은 3D 도형과 그림 등을 통해 사용자에게 편의를 제공하여 교육, 디자인, 항법, 의학 등의 분야에서 사용되고 있다. 증강현실은 마커기반 증강현실과 비가시적 마커기반 증강현실로 나눌 수 있다. 증강현실 반려동물 어플리케이션은 비가시적 마커기반 증강현실을 기반 하여 가상의 반려동물을 제공함으로써, 실제 교감과 유사한 경험을 제공한다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2021.11a
• /
• pp.1009-1011
• /
• 2021

게임에서 플레이어에게 시각적으로 제공되는 환경을 View라고 하는데, View의 전환만으로도 전혀 다른 게임의 경험이 가능하다. 본 논문에서는 car racing game에서 View의 전환에 따른 게임의 경험 차이를 비교하였다. 우리는 ARcore 라이브러리를 사용하여 AR car racing game을 구현하였고 virtual joystick을 사용한 Interaction 방법을 구현하였다. Top down view와 first person view의 차이점이 플레이어의 실감에 어떠한 영향을 미치는지 연구하기 위해 두 view을 구현하여 pilot study를 수행하였다.

• Journal of Industrial Convergence
• /
• v.17 no.4
• /
• pp.15-20
• /
• 2019

Augmented reality is used in various fields such as culture, education, military, medical. This is a method of recognizing information of an augmented object on the camera. Exhibitions and educational contents for children are already produced in various ways. This research showed the developed contents deliver cultural property information using augmented reality. 'Galgibi AR' and 'Jang Young-sil's Invention AR' allow you to experience cultural assets up close. 'Galgibi AR' is the experience content in the form of 3D blocks. It makes to understand the structure of the zeolite, Galgibi. 'Jang Young-sil's Invention AR' make you to watch out four objects in detail by zooming in, zooming out and rotating. It can also take pictures with the inventions. Both contents implement what we want to deliver accurately through simple content. They increase the enjoyment of cultural heritage through experience contents. This research addressed to help the cultural property information spread to the public by using Augmented Reality.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.18 no.6
• /
• pp.1229-1238
• /
• 2023

Digital twin is a technology that creates a virtual space that replicates the real world and manages the real world efficiently by integrating the real and virtual spaces. The digital twin concept for water facilities is to effectively manage water pipes in the real world by implementing them in a virtual space and augmenting them to the interior space of the building. In the proposed method, the Unity 3D game engine is used to implement the application of digital twin technology in the interior of a building. The AR Foundation toolkit based on ARCore is used as the augmented reality technology for our Digital Twin implementation. In digital twin applications, it is essential to match the real and virtual worlds. In the proposed method, 2D image markers are used to match the real and virtual worlds. The Unity shader program is also applied to make the augmented objects visually realistic. The implementation results show that the proposed method is simple but accurate in placing water pipes in real space, and visually effective in representing water pipes on the wall.

• Journal of the Korea Society of Computer and Information
• /
• v.23 no.9
• /
• pp.15-20
• /
• 2018

Currently the mobile augmented reality does not require supplemental hardware, such as markers like specific images or depth cameras, in order to acquire 3D environment information. This allows for increased accessibility and usability for the general user, and also broadened scope of development. The market research enterprise Counterpoint Research predicted that the growth of the augmented reality market will reach 70 trillion Korean Won by 2021. Application developments are also progressing. Wargaming, the developer of the global game World of Tanks, has launched an application that uses AR core at the GDC 2018. Thus, we must prepare for the impending augmented reality market and acquire top class augmented reality technology using 3D environment. This paper outlines the development of a game using AR CORE SDK to acquire 3D environment and Unity 3D game engine to combine camera images and 3D graphics, which all comes together to construct a natural augmented reality.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2020.11a
• /
• pp.361-363
• /
• 2020

기존의 지도 또는 길 찾기 기능을 사용 할 때 방향 정보를 직관적으로 제시해주는 네비게이션 구현을 목표로, 사용 지역을 캠퍼스 내로 국한시켜 증강현실을 이용한 네비게이션을 구현하였다. 본 애플리케이션 개발에는 Mapbox maps API, ARCore, Unity 3D Engine, Android studio를 사용하였다. 사용지역을 확대시켜 Mobile device 뿐만 아니라 자동차 앞 유리 디스플레이에 접목하여 보다 다양한 서비스 제공을 기대할 수 있다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2021.07a
• /
• pp.253-255
• /
• 2021

현재 코로나 사태로 비대면으로 진행이 되어 온라인 쇼핑 시장이 지속적으로 증가하고 있고, 4차 산업혁명으로 새로운 혁신 기술로 가상현실(VR)과 증강현실(AR)이 있으며, 좀 더 빠르게, 좀 더 편리하게 할 수 있어 생산성을 향상시키고 있다. 이에 본 논문은 쇼핑몰에 증강현실(AR)기술을 부합하여 사용자들에게 AR 카메라를 활용한 체형 측정 서비스, AR기술을 통해 자신 아바타에 입혀주는 피팅서비스를 통해 사용자들에게 빠르고 편리하게 맞춤형 쇼핑을 제공한다. 구현은 현재 사용 중인 운영체계 중 Android와 Ios 사용하고 있는 ARKit와 ARCore를 활용을 하여 구현한다.