• International Journal of Contents
• /
• 제16권3호
• /
• pp.18-32
• /
• 2020

The aim of this study was to perform a meta-analysis of the learning outcomes of immersive learning technologies in English language teaching (ELT). This study examined 12 articles, yielding a total of 20 effect sizes. The Comprehensive Meta-Analysis (CMA) program was employed for data analysis. The findings revealed that the overall effect size was 0.84, implying a large effect size. Additionally, the mean effect sizes of the dependent variables revealed a large effect size for both the cognitive and affective domains. Furthermore, the study analyzed the impact of moderator variables such as sample scale, technology type, tool type, work type, program type, duration (sessions), the degree of immersion, instructional technique, and augmented reality (AR) type. Among the moderators, the degree of immersion was found to be statistically significant. In conclusion, the study results suggested that immersive learning technologies had a positive impact on learning in ELT.

• 한국멀티미디어학회논문지
• /
• 제25권6호
• /
• pp.844-851
• /
• 2022

This study intends to propose an evaluation tool for analyzing the sense of immersion of realistic VR game contents in the metabus game industry, which is rapidly increasing recently. This paper presents an analysis tool to measure the degree of immersion after selecting three types VR games for research, and analyzing the immersion way method of the game. The research method analyzes how the user and the sense of immersion formed in the storytelling in the game can have an effect. Based on the results, we present an sense of immersion analysis and measurement method for evaluating the usability of VR game contents, which is a key element in the metaverse era. Furthermore, it expands the immersion element that appears in storytelling to the game industry and seeks a new direction of development through connection with the VR game industry.

• 한국컴퓨터그래픽스학회논문지
• /
• 제25권2호
• /
• pp.31-41
• /
• 2019

가상 및 증강현실과 같은 확장현실(XR: Extended Reality)은 몰입형 데이터 시각화 및 분석을 위한 거대한 잠재력을 가지고 있다. 확장현실에서 사용자는 3차원 가상 공간을 활용하여 데이터 및 여러 사용자와 사실적으로 상호 작용할 수 있으므로 보다 직관적인 데이터 분석이 가능하다. 그러나 확장현실의 장점을 제대로 활용하기 위한 시각화를 생성하는 것은 복잡한 프로그래밍이 필요하기 때문에 상당히 어려운 일이다. 본 논문에서는 손 제스처만으로 XR을 위한 시각화 전 과정을 수행하고, 모든 3차원 공간을 활용할 수 있는 가젯암(Gadget Arms) 시스템을 제안한다. 이 시스템에서 분석가는 데스크탑 기반 환경이나 복잡한 프로그래밍을 사용할 필요 없이 XR 기기를 착용한 상태에서 직관적으로 전체 시각화 공간을 디자인할 수 있으며, 가상의 손을 임의의 3차원 공간에 자유자재로 위치시킬 수 있는 인터랙션을 통해 거대한 3차원 공간을 효과적으로 활용할 수 있다. 우리는 사용자 연구를 통해 제안된 시스템이 시각화 제작과 공간 활용의 사용성을 크게 향상시시키는 것을 확인하였다.

• International Journal of Advanced Culture Technology
• /
• 제11권3호
• /
• pp.332-337
• /
• 2023

The purpose of the study was to analyze consumers' perceptions of gamification. Based on the analyzed data, we would like to provide data by systematically organizing the concept, game elements, and mechanisms of gamification. Recently, gamification can be easily found around medical care, corporate marketing, and education. This study collected keywords from social media portal sites Naver, Daum, and Google from 2018 to 2023 using TEXTOM, a social media analysis tool. In this study, data were analyzed using text mining, semantic network analysis, and CONCOR analysis methods. Based on the collected data, we looked at the relevance and clusters related to gamification. The clusters were divided into a total of four clusters: 'Awareness of Gamification', 'Gamification Program', 'Future Technology of Gamification', and 'Use of Gamification'. Through social media analysis, we want to investigate and identify consumers' perceptions of gamification use, and check market and consumer perceptions to make up for the shortcomings. Through this, we intend to develop a plan to utilize gamification.

• 한국CDE학회논문집
• /
• 제22권2호
• /
• pp.202-214
• /
• 2017

The augmented visualization of analysis results can play an import role as a post-processing tool for the modeling & simulation (M&S) technology. In particular, it is essential to develop such an M&S tool which can run on various multi-devices. This paper presents an augmented reality (AR) approach to visualizing and interacting with M&S post-processing results through mobile devices. The proposed approach imports M&S data, extracts analysis information, and converts the extracted information into the one used for AR-based visualization. Finally, the result can be displayed on the mobile device through an AR marker tracking and a shader-based realistic rendering. In particular, the proposed method can superimpose AR-based realistic scenes onto physical objects such as 3D printing-based physical prototypes in a seamless manner, which can provide more immersive visualization and natural interaction of M&S results than conventional VR or AR-based approaches. A user study has been performed to analyze the qualitative usability. Implementation results will also be given to show the advantage and effectiveness of the proposed approach.

• International Journal of Advanced Culture Technology
• /
• 제12권1호
• /
• pp.270-275
• /
• 2024

Introduction. In this study, purpose is to analize the types of golf tourism, inbound or outbound, by using big data and see how movement of industry is being changed and what changes have been made during and after Covid-19 in golf industry. Method Using Textom, a big data analysis tool, "golf tourism" and "Covid-19" were selected as keywords, and search frequency information of Naver and Daum was collected for a year from 1 st January, 2023 to 31st December, 2023, and data preprocessing was conducted based on this. For the suitability of the study and more accurate data, data not related to "golf tourism" was removed through the refining process, and similar keywords were grouped into the same keyword to perform analysis. As a result of the word refining process, top 36 keywords with the highest relevance and search frequency were selected and applied to this study. The top 36 keywords derived through word purification were subjected to TF-IDF analysis, visualization analysis using Ucinet6 and NetDraw programs, network analysis between keywords, and cluster analysis between each keyword through Concor analysis. Results By using big data analysis, it was found out option of oversea golf tourism is affecting on inbound golf travel. "Golf", "Tourism", "Vietnam", "Thailand" showed high frequencies, which proves that oversea golf tour is now the re-coming trends.

• 한국멀티미디어학회논문지
• /
• 제24권11호
• /
• pp.1560-1566
• /
• 2021

Cyber Sickness, which occurs when using Virtual Reality contents, is the most serious problem in immersive Virtual Reality contents. The purpose of this study is to identify the effects and causes of graphic environmental factors on Cyber Sickness in Virtual Reality contents. To this end, cyber sickness experiments were conducted according to the light source and material settings, which are most commonly used in graphical environmental elements. Cyber Sickness measurements were based on the Simulator Sickness Question(SSQ) tool to derive an index that causes Cyber Sickness As a result of the analysis, the smaller the surface roughness, the higher the degree of Cyber Sickness, and the smaller the surface roughness, the smoother the surface of the 3D object, and many specular reflections from the light source occurred, which was confirmed to be the cause of great Cyber Sickness.

• 한국멀티미디어학회논문지
• /
• 제25권6호
• /
• pp.852-865
• /
• 2022

During the COVID-19 pandemic, games played an important role in people's lives. Numerous online users flocked to the game platform, and brand companies started using online games to promote their products. Medical institutions have also implemented policies for healthy physical activity through online games. In order to attract more global game users, research on immersion in games is also very important to prevent users from leaving the platform. Therefore, it is necessary to analyze the common immersion elements of popular games by country and study them from the perspective of changing devices. In this paper, representative popular games of Korea, China, and Japan, which are recently called the dark horse of the game industry, are classified by devices of mobile, online PCs, and VR games and analyzed using immersion analysis tools proposed by researcher. Next, the representative metaverse games of the Web 3.0 era were analyzed, and their characteristics were compared with the results of the immersion analysis between Korea, China, and Japan, and proposed as game immersion elements suitable for metabus games.

• 한국정보과학회논문지:소프트웨어및응용
• /
• 제33권10호
• /
• pp.851-861
• /
• 2006

영상을 낮은 피사계 심도로 찍는 카메라 기법은 전통적으로 널리 이용되는 영상 취득 기술이다. 이 방법을 사용하면 사진사가 사진이나 동영상을 찍을 때 영상의 관심 영역에만 포커스를 두어 선명하게 표현하고 나머지는 흐릿하게 함으로써 자신의 의도를 보는 이에게의 분명하게 전달 할 수 있다. 본 논문은 이러한 피사계 심도가 낮은 동영상 입력에 대하여 사용자의 도움 없이 포커스 된 비디오 객체를 추출하는 새로운 방법을 제안한다. 본 연구에서 제안하는 방법은 크게 두 모듈로 나뉜다. 첫 번째 모듈에서는 동영상의 첫 번째 프레임에 대해서 포커스 된 영역과 그렇지 않은 흐릿한 부분을 자동으로 구분하여 관심 물체만을 추출한다. 두 번째 모듈에서는 첫 번째 모듈에서 구한 관심 물체의 모델을 바탕으로 동영상 프레임에서의 관심 물체만을 실시간이나 실시간에 가깝게 추출한다. 본 논문에서 제안하는 방법은 가상현실(VR)이나 실감 방송, 비디오 인덱싱 시스템과 같은 여러 응용 분야에 효과적으로 적용될 수 있고, 이러한 유용성은 실험 결과를 통해 보였다.

• 한국컴퓨터그래픽스학회논문지
• /
• 제25권3호
• /
• pp.11-20
• /
• 2019

본 연구는 시각 장애인의 도보 적응을 위한 새로운 가상현실 체험 환경을 제안한다. 제안하는 가상현실 체험 환경의 핵심은 몰입형 보행 상호작용과 딥러닝 기반 점자 블록 인식으로 구성된다. 우선, 시각 장애인의 입장에서 현실적인 걷기 경험을 제공함을 목적으로 제자리 걸음을 감지하여 걷기를 판단하는 트래커 기반 걷기 처리과정과 시각 장애인의 보행 보조 도구를 가상현실에 적용한 컨트롤러 기반 VR 흰지팡이를 설계한다. 또한, VR 흰지팡이를 활용한 길 안내 과정에서 도로 위의 점자 블록 인지 및 반응 등 종합적인 의사결정을 수행하는 학습 모델을 제안한다. 이를 기반으로 가상현실 도보 체험 환경에 대한 실험을 위하여 실외 도시 환경으로 구성된 가상현실 어플리케이션을 제작하고, 참가자를 대상으로 설문 실험 및 성능 분석을 진행하였다. 결과적으로 제안한 가상현실 체험 환경이 시각 장애인의 입장에서 현존감 높은 도보 체험을 제공하고 있음을 확인하였다. 그리고 제안한 학습과 처리과정이 인도와 차도, 인도 위의 점자 블록을 높은 정확도로 인지함을 확인하였다.