• 디지털콘텐츠학회 논문지
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• 제10권4호
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• pp.521-527
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• 2009

본 논문에서는 마커 기반의 가상 객체나 opengl 을 이용하여 구현된 가상 객체, 웹 카메라 영상 프레임을 통해 입력된 실물 객체의 충돌처리를 유효화시켜 사용자에게 보다 높은 현실성을 제공하는 증강현실 충돌기법을 제안한다. 증강현실 시스템은 현실의 환경에 가상의 객체를 추가하여 사용자에게 시각적 정보를 제공하는 시스템으로 객체간의 상호작용, 사용자와의 상호작용에 대하여 관심이 높아가고 있다. 그러나 본 논문에서 제안한 충돌처리는 상호작용에 있어서 가장 기본적인 문제가 되기 때문에 선결해야 할 문제이다. 따라서 제안된 시스템에서는 이 문제를 해결하여 마커를 기반으로 구현된 객체와 Opengl을 기반으로 구현된 가상 객체, 웹 카메라 영상 프레임으로부터 입렵된 실물 객체 사이에서 객체간의 충돌을 유효화 시킴으로써 현실성과 몰입도를 증대시킨다.

• 한국게임학회 논문지
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• 제19권5호
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• pp.39-52
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• 2019

최근 체감형 스포츠 게임은 시각적 자극 통한 콘텐츠 몰입을 위해 다양한 연구가 진행되고 있다. 그 중 미디어 콘텐츠의 다면 영상 기술은 넓은 시야에 영상을 투사하여 몰입시키기에 적절하지만 캘리브레이션과 시야에 맞는 매핑 작업을 따로 거쳐야한다는 어려움이 있다. 본 논문은 누구나 쉽게 적용 가능한 캘리브레이션 매핑 기술을 개발하고, CAVE 형태의 체감형 필드아처리 게임 공간에 적용한다. 그 결과 콘텐츠의 해상도를 유지하고 왜곡 없는 영상을 통해 체험자에게 공간감 제공이 가능하다는 것을 확인하였다. 본 논문에서 개발한 기술은 소방 훈련 콘텐츠와 같이 높은 몰입이 필요한 훈련 및 교육 분야에도 활용 가능할 것으로 기대한다.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2018년도 제58차 하계학술대회논문집 26권2호
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• pp.116-118
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• 2018

본 논문에서는 기존의 동영상을 그랩컷(GrabCut) 알고리즘과 유니티3D를 이용하여 상호작용이 가능한 동영상을 제작하는 기법을 제안한다. 그랩컷 알고리즘을 이용하여 동영상에서 재생 프레임 단위로 원하는 객체 영역을 추출하고 흑백의 이미지로 이진화한다. 이진화된 결과물과 원본 동영상을 유니티3D에서 동시에 재생하면서 선택 영역의 이진화 픽셀 정보를 기반으로 사용자의 입력을 감지하는 동영상의 제작이 가능함을 보였다.

• International Journal of Advanced Culture Technology
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• 제7권2호
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• pp.195-200
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• 2019

Media art, which is a combination of media technology and art, is making a lot of progress in combination with AI, IoT and VR. This paper aims to meet people's needs by creating a video that simulates the dance moves of an object that users admire by using media art that features interactive interactions between users and works. The project proposed a universal image synthesis system that minimizes equipment constraints by utilizing a deep running-based Skeleton estimation system and one of the deep-running neural network structures, rather than a Kinect-based Skeleton image. The results of the experiment showed that the images implemented through the deep learning system were successful in generating the same results as the user did when they actually danced through inference and synthesis of motion that they did not actually behave.

• Journal of information and communication convergence engineering
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• 제21권1호
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• pp.68-74
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• 2023

This study examines the response of users' feelings from a gender perspective toward interactive video mobile learning (IVML). An IVML prototype was developed for the Android platform allowing users to install and make use of the app for m-learning purposes. This study aims to measure the level of feelings toward the IVML prototype and examine the differences in gender perspectives, identify the most responsive feelings between male, and female users as prominent feelings and measure the correlation between user-friendly feeling traits as an independent variable in accordance with gender attributes. The feelings response could then be extracted from the user experience, user interface, and human-computer interaction based on gender perspectives using the Kansei engineering approach as the measurement method. The statistical results demonstrated the different emotional reactions from a male and female perspective toward the IVML prototype may or may not have a correlation with the user-friendly trait, perhaps having a similar emotional response from one to another.

• Educational Technology International
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• 제24권1호
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• pp.1-27
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• 2023

This study aimed to examine an augmented reality-based teaching simulation in a mobile application. We examined how AR-enabled interactions affect users' perceived scenario usefulness and avatar realism. The participants were forty-six undergraduate students. We randomly grouped them into two conditions: AR and Non-interactive video groups with equal sample sizes. This study employed an experimental design approach with a one-way multivariate analysis of variance with repeated measures. The independent variable is the presence/absence of AR interaction with a mobile application. The dependent variables were avatar realism and scenario usefulness. The measures explored how the student avatar's emotional intensity in a scenario influences user perception. The results showed that participants in the AR-interaction group perceived avatar realism significantly higher than those in the non-interactive video group. Also, participants perceived the high emotional intensity scenario (aggression toward peers) to be significantly higher usefulness than the low emotional intensity scenario (classroom disruption).

• 한국멀티미디어학회논문지
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• 제23권1호
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• pp.58-66
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• 2020

5G-based HMD technology grew rapidly in the context of the environment change of convergence technology media and mobile networks in the fourth industrial era. It has also grown into a core technology that transforms our digital visual system. However, there is no research or system that can understand and verify radical visual system changes. Therefore, it is necessary to have an engineering understanding and verification of the diffusion of HMD media imaging devices. Beyond the distinction between virtual and real, research is urgently needed on the new three-dimensional interface of the 21st century through viewer participation. For this reason, research on the algorithm structure of interactive video media using L-System is an essential process and will be a guide to understanding the virtual reality interactive environment.

• ETRI Journal
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• 제30권1호
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• pp.101-112
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• 2008

In this paper, we present a method to customize the ground color in outdoor sports video to provide TV viewers with a better viewing experience or subjective satisfaction. This issue, related to content personalization, is becoming critical with the advent of mobile TV and interactive TV. In outdoor sports video, such as soccer video, it is sometimes observed that the ground color is not satisfactory to viewers. In this work, the proposed algorithm is focused on customizing the ground color to deliver a better viewing experience for viewers. The algorithm comprises three modules: ground detection, shot classification, and ground color customization. We customize the ground color by considering the difference between ground colors from both input video and the target ground patch. Experimental results show that the proposed scheme offers useful tools to provide a more comfortable viewing experience and that it is amenable to real-time performance, even in a software-based implementation.

• 디지털산업정보학회논문지
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• 제10권3호
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• pp.207-221
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• 2014

Education environment of modern society is rapidly changing along the usage of various device and development of contents. Learners of diverse age groups and genders are exposed in smart education environment. Thus in order to investigate effective smart education contents production, this study classified interactive types that affect learning satisfaction into CAI (Computer Assisted Instruction) based , NCS (Network Communication System) based , and NTS (New Technology System) based . Then we investigated how each interactive types affect immersion, utility, self-efficacy, practicality, and stimulation. The effects were measured according to the learner's gender and age. As the result, interactive types do affect smart education, where male had higher learning satisfaction for CAI based, game type, and wiki type while female had higher satisfaction for relationship establishment type and experience type. Also, for age group, the 10s preferred NTS based, 20~30s NCS based, and 40s and over CAI based interactive type. Thus, if satisfaction levels according to gender and age are considered when producing smart education contents, it may be possible to create educative contents that meet the dispositions of the learners.

• 한국콘텐츠학회논문지
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• 제22권4호
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• pp.765-774
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• 2022

글로벌 온라인동영상서비스(OTT) 넷플릭스는 2015년 이후 다양한 '인터랙티브 콘텐츠'를 만들어왔다. 인터랙티브 콘텐츠는 영상 이용자가 직접 캐릭터를 대신해 상황에 맞는 선택들을 하고, 이 선택에 따라 이야기의 결론이 달라지는 작품을 의미한다. 본 논문은 그중 여러 서사 변주를 시도한 2020년 작품 <언브레이커블 키미 슈미트: 키미 대 교주>와 2021년에 공개된 <언더테이커의 저주받은 저택>에 대해 연구한다. 이 작품들에선 이전 인터랙티브 콘텐츠에 비해 주체와 선택지가 다양해졌으며, 주요 메시지도 변화했다. 본 연구는 이를 통해 OTT에서 이뤄지고 있는 인터랙티브 콘텐츠의 서사 구조의 다변화 양상을 분석하고 그 특성에 대해 살펴본다.