• Smart Media Journal
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• v.13 no.5
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• pp.45-51
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• 2024

Recently, realistic contents such as virtual reality(VR) and augmented reality (AR) are widely used for education to provide beneficial learning environments with thee-dimensional(3D) information and interactive technology. Specially, AR technology will be helpful to intuitively understand by adding virtual objects registered in the real learning environment with effective ways. In this paper, we developed an AR learning system using 3D spatial information in the 2D based textbook for studying math related to geometry. In order to increase spatial learning effect, we applied to solid shapes such as prisms and pyramids in mathematics education process. Also, it allows participants to use various shapes and expression methods (e.g., wireframe mode) with interaction. We conducted the experiment with our AR system, evaluated achievement and interest. Our experimental study showed positive results, our results are expected to provide effective learning methods in various classes through realistic visualization and interaction methods.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.622-624
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• 2018

인간에게 경험이란 삶의 흔적이며 과정이다. 어떤 경험을 했는지, 느낌을 갖게 되었는지, 본적이 있는지, 만진 적이 있는지 등 다양한 인지 요소들은 그 기억만으로 그 인간의 특성이 되고 성질이 된다. 이러한 모든 경우를 재인이라고 한다. 이러한 기억 인출 단서들이 현존감이 강한 가상환경에서 발견되느냐, 발견되지 않느냐에 따라 미디어적 환상성이 아닌 사용자에게 가상에서의 '현실'을 제공하는 중요 요소로 작용할 것이다. 또한 가상현실 콘텐츠의 이해가 미숙한 사용자라도 가상환경에서 선행경험에 대한 재인요소를 제공받을 수 있는 중요한 단서가 될 수 있다면, 콘텐츠에 대한 높은 만족감을 기대할 수 있을 것이다. 본 연구는 가상현실 콘텐츠의 만족도를 올리는 요소로서, 재인에 대하여 고찰하고 개인의 재인과 가상현실 콘텐츠 만족과의 상관관계를 연구하여 양질의 콘텐츠 서비스를 제공하는데 기여하고 가상현실을 경험하는 사용자의 심리적인 영역까지 이해의 폭을 넓히고자 함이다.

• Women's Health Nursing
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• v.28 no.3
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• pp.174-186
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• 2022

Purpose: This study aimed to investigate the effects of virtual reality used in maternal-child nursing clinical practicums on nursing students' competencies through a systematic review. Methods: The inclusion criteria were peer-reviewed papers in English or Korean presenting analytic studies of maternal-child nursing practicums using virtual reality. An electronic literature search of the Cochrane Library, CINAHL, EMBASE, ERIC, PubMed, and Research Information Sharing System databases was performed using combinations of the keywords "nursing student," "virtual reality," "augmented reality," "mixed reality," and "virtual simulation" from February 4 to 15, 2022. Quality appraisal was performed using the RoB 2 and ROBINS-I tools for randomized controlled trials (RCTs) and non-RCTs, respectively. Results: Of the seven articles identified, the RCT study (n=1) was deemed to have a high risk of bias, with some items indeterminable due to a lack of reported details. Most of the non-RCT studies (n=6) had a moderate or serious risk of bias related to selection and measurement issues. Clinical education using virtual reality had positive effects on knowledge, skills, satisfaction, self-efficacy, and needs improvement; however, it did not affect critical thinking or self-directed learning. Conclusion: This study demonstrated that using virtual reality for maternal-child nursing clinical practicums had educational effects on a variety of students' competencies. Considering the challenges of providing direct care in clinical practicums, virtual reality can be a viable tool that supplements maternal-child nursing experience. Greater rigor and fuller reporting of study details are required for future research.

• Journal of Digital Convergence
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• v.18 no.3
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• pp.49-57
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• 2020

Over time, the beauty industry has entered a mature industry and cannot survive unless it changes. In reality, the AR market for virtual experimental marketing is growing in the beauty industry, and global companies like FACEBOOK in the US are investing heavily in AR. Therefore, this study utilizes augmented reality technique to find out how the experience of using AR application affects female consumers' satisfaction and how they feel. This study will focus on how the relationship with purchase intention is mediated. In addition, we will help to suggest the development direction of augmented reality with makeup by analyzing the overall factors at the time when new technology, augmented reality marketing is becoming active.

• Korean Journal of Computational Design and Engineering
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• v.19 no.2
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• pp.111-118
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• 2014

In tangible augmented reality (AR) environments, the user interacts with virtual objects by manipulating their physical counterparts, but he or she often encounters awkward situations in which his or her hands are occluded by the augmented virtual objects, which causes great difficulty in figuring out hand positions, and reduces both immersion and ease of interaction. To solve the problem of such hand occlusion, skin color information has been usefully exploited. In this paper, we propose an approach to simple and effective construction of a skin color map which is suitable for hand segmentation and tangible AR interaction. The basic idea used herein is to obtain hand images used in a target AR environment by simple image subtraction and to represent their color information by a convex polygonal map in the YCbCr color space. We experimentally found that the convex polygonal map is more accurate in representing skin color than a conventional rectangular map. After implementing a solution for resolving hand occlusion using the proposed skin color map construction, we showed its usefulness by applying it to virtual design evaluation of digital handheld products in a tangible AR environment.

• Journal of Digital Contents Society
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• v.15 no.1
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• pp.69-76
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• 2014

In this study, by using the control technique of the user using augmented reality technology, to provide a game system touch-based. The augmented reality technology, can be advantageously used vehicle is easily recognized as a technique for synthesizing (images, video, text) object of the virtual image of the real world. Augmented reality technology has been studied to make the application in various fields. Studies of natural marker-based marker and base are underway, but there is no sense of incongruity in reality research natural marker-based and has been studied much. By using the augmented reality technology natural marker-based In this paper, we implemented a game system. The system also has the advantage that can be absorbed in the game by using the techniques of the interaction through a user's touch. Touch interface-based, are available as well as user environments, even in mobile devices such as smart-phone and touch pad.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.375-377
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• 2011

The augmented reality is a technology which expresses the information hardly obtained in the real world by synthesizing virtual objects in the real world. This study uses IR LED marker to obtain the coordination of real world for registration of virtual objects. Since the IR LED marker is inserted in target object thus it has properties of invisible markers. To realize the augmented reality, the existence of marker can be observed in camera input image. Therefore, this paper provides a method to give the properties of perfect invisible marker by using inpainting technology when realizing IR LED marker.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.427-428
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• 2021

Recently, various augmented reality(AR) methods for monitoring situations in a remote factory have been proposed. The 2D manual with a classic method is not intuitive to understand and has limitations to provide to interact with objects to be repaired in the remote factory. In our paper, we present a guide method based on a virtual human expressed in augmented reality for the remote environment. Also, the remote factory environment was periodically captured through 3D reconstruction, our virtual human was adaptively matched to the built 3D environment. According to this paper, our method makes it possible to perform repairs quickly with the feeling of being with an expert. and it is possible to provide a visualized guide for troubleshooting in various fields such as factories, offices, medical facilities, and schools in remote environments.

• Journal of Korean Library and Information Science Society
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• v.51 no.4
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• pp.375-403
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• 2020

The purpose of the research is to discuss the directions of university library services development applying virtual and augmented reality (VR/AR) technologies and contents. In order to achieve the goal, the research investigated university librarians' awareness and demands regarding to applying VR/AR technologies and contents to university library services. The following questions are asked via online survey method to university librarians: what kinds of necessity and awareness about VR/AR technologies they have, what kinds of competency and environment (infrastructure) are required for the services, and how to conduct continuing education for service development, etc. On the basis of the survey results, the research suggested the matters to be noted when applying VR/AR technologies and contents to university library services. Furthermore, the contents and strategies to be considered and prepared when developing a library program using VR/AR technologies and contents were discussed and follow-up research topics were suggested.

• Educational Technology International
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• v.20 no.2
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• pp.137-168
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• 2019

This study examined the effects of information volume and distribution on learners' cognitive load and recall in a mobile augmented reality (AR) environment. Information volume refers to the degree of information users are provided in a learning task, while information distribution indicates the way in which information is distributed, either in a virtual or real format. Sixteen undergraduate students participated in the study, which employed a 2 × 3 randomized block factorial design with repeated measures. Information volume and distribution were independent variables, and factors in learners' cognitive load (mental effort, perceived ease of use, and perceived task difficulty) and recall test scores were the dependent variables. Information volume had significant main effects on perceived ease of use and task difficulty, and recall test scores, while information distribution had significant main effects on perceived task difficulty and test scores. A detailed discussion and implications are provided.