• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.232-233
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• 2015

디지털 미디어의 발전으로 인해 모션그래픽의 구성요소들은 다양한 방식으로 제작되고 있다. 모션그래픽을 활용한 영상콘텐츠 제작기법은 새로운 이미지를 어떻게 제작하느냐에 따라 보다 창의적이고 효율적인 영상으로 표현되기도 한다. 모션그래픽의 활용도는 웹, 게임, 및 영화 방송 등 다양한 콘텐츠의 시각적 정보전달의 의미를 가지고 있다. 모션그래픽의 새롭고 실험적인 작업은 어떠한 제작방식에 따라 그 결과는 아주 다르게 나타난다. 또한 영상제작에 대한 프로세스는 새로운 뉴미디어의 기술의 결합으로 영상콘텐츠의 창의적인 작품으로 된다. 따라서 본 논문은 모션그래픽의 제작방식에서 실사카메라의 움직임을 가상카메라로 트래킹하여 입체적인 모션그래픽을 구현하는 제작방법을 제시한다.

• Annual Conference of KIPS
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• 2010.11a
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• pp.1721-1724
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• 2010

멀티코어의 등장과 병렬 프로그래밍의 확산으로 lock-free 동기화 기법에 대한 관심과 필요성이 더욱 커지고 있지만, 대부분의 lock-free 동기화 기법들이 구현 복잡도와 동작시 오버헤드로 인해 실제 활용되는 사례는 미비하다. 하지만, RCU(Read-Copy Update) 기법의 등장으로 다양한 운영체제에서 이를 구현하여 활용하고, 최근에는 게임 서버와 같은 응용 프로그램에서도 이를 활용하려는 시도가 늘어나고 있지만, 기존에 제안된 URCU(Userspace RCU) 기법들은 메모리 순서오류 문제 해결을 위한 메모리 장벽 호출 및 reader와 updater 간의 IPC 등으로 충분한 성능을 보여주지 못하고 있다. 이에 본 논문에서는 페이지 폴트를 이용한 URCU 기법을 제안하고, 이를 구현하여 기존의 URCU 기법들과 실험을 통하여 평가하였다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2021.06a
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• pp.10-13
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• 2021

본 논문에서는 과다 노출된 영상을 영상 간 변환(Image-to-Image Translation)을 위해 설계된 적대적 생성 신경망(Generative Adversarial Network)을 활용하여 복원하는 연구를 수행한다. 과다 노출 복원을 위한 기존의 연구에서 과다 노출 영역 판별, 밝기 회복, 색상 보정 과정을 거치는데, 영상 내 과다 노출 영역을 판별하는 과정에서 임의로 결정하는 파라미터에 의해 복원된 영상 결과가 달라지는 한계점을 극복하기 위해 종단간(End-to-End) 신경망을 학습시켜 과다 노출 영역을 별도의 파라미터 선택과 분할된 과정 없이 한 번에 복원하는 방법을 제안한다. 영상 간 변환 신경망 학습에 필요한 과다 노출 여부로 도메인이 분할된 데이터셋은 게임 소프트웨어를 활용하여 만들어 사용하였다. 본 연구에서는 신경망이 생성한 영상이 실제로 과다 노출 영역을 탐지하여 복원하는 것을 확인하였다. 그리고 과다 노출 영역을 탐지하여 복원하는 과정을 학습 단계별로 확인함으로써 신경망이 실제로 과다 노출 복원 과정을 학습함을 보였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.217-218
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• 2022

본 논문에서는 코로나19 팬더믹(pandemic)으로 최근 3년가 비대면 강의가 대부분 이루어졌고, 자연스럽게 비대면 교수법 또한 여러 가지 형태로 시도되어졌다. 게더타운(Gather Town)이라는 온라인 화상회의 공간을 2D게임화 시켜서 세계적인 인기에 힘입어 본교 학생 500명 가까이 활용해 보았고, 이후 국내에서 3D기반의 매타버스 플랫폼 디토랜드(DITO LAND)를 개발하여 본교 학생 300여명의 학생들을 대상으로 실시하여 2D, 3D 기반의 장단점을 파악하게 되었다. 이를 바탕으로 추후 어떠한 방향으로 메타버스 콘텐츠를 활용한 교수법이 더 효과가 있을 것인지 예측하고, 메타버스 콘텐츠 개발자들에게 조금이라도 도움을 주고자 한다.

• Annual Conference of KIPS
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• 2024.10a
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• pp.1001-1002
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• 2024

본 연구에서는 수중 촬영 이미지를 활용하여 해양 침적 쓰레기의 자동 인식 및 분류를 위한 딥러닝 기반 객체 탐지 분석을 수행하였다. 타이어, 로프, 나무, 통발류, 어망류 등 9 종의 침적 쓰레기에 대해 YOLOv5(You Only Look Once version 5) 모델을 적용하여 학습 및 추론을 진행하였다. 총 111,890 장의 수중 촬영 이미지를 활용하였으며, 해당 데이터는 해양 환경에서 YOLO v5 의 YOLOv5x, YOLOv5l, YOLOv5m, YOLOv5s, YOLOv5n 모델로 실험하였다. 성능 평가를 위해 mAP(mean Average Precision) 지표를 사용하였으며, 실험 결과 YOLOv5x 모델이 가장 높은 성능을 보여주었고 YOLOv5l, YOLOv5m, YOLOv5s, YOLOv5n 순서 로 높은 성능을 보여주었다. 본 연구는 딥러닝 모델을 활용한 해양 쓰레기 자동 검출 및 분류의 가능성을 입증하며, 해양 환경 보호를 위한 모니터링 및 정책 수립에 유용한 도구로 기여할 수 있을 것이다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.8
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• pp.3777-3785
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• 2013

This study aimed to find out adolescents' media literacy in terms of reading, writing, and enjoying media or messages. For the purpose, we analyzed the data garnered from 1,036 students enrolled in 5 middle and 5 high schools, respectively. The analyses of the data are summarized as follows: First, mobile phone was most widely used among others, followed by TV, the Internet, mp3 player, computer or video game, radio, a video or DVD in the order. Second, a gender effect was significant in terms of the variety of activities with the Internet, mobile, and SNS: boys were more active in the use of the Internet while girls carried out more activities with a mobile phone and SNS media. Third, high school students showed more critical attitude towards information on the Website than did the middle school students. Fourth, Girls than boys, and high schoolers than middle schoolers, tended to be more active in the production of contents, self-expression, as well as participating in social and political issues online. Fifth, for the enjoyment experiences, time spent for games took up the most of the students' leisure activities, followed by watching TV and the use of the Internet. The findings of the study were discussed in light of media convergence, with implications for developing media literacy education for the youth.

• Journal of the Korea Society of Computer and Information
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• v.17 no.3
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• pp.157-165
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• 2012

The purpose of this study is to treat the students addicted to the internet by implementing a program using computers. In order to accomplish the purpose, the program was created by combining the game making activities using scratch programming, self-examination activities, and future occupation search activities. This treatment program will have major positive effects on the students who are addicted to the internet. First, it will be effective for reducing the time for using the internet and it will also improve the addictiveness such as being immersed in playing games. Second, there will be a change in attitude toward the internet and an improvement in intellectual capacity of the students. They will realize the fun of making and sharing the programs with friends, and their thinking skills will be improved by getting training for algorithmic and creative thinking. Third, this treatment program will have positive effects on the students' affective domain. They will have deeper and wider perspective on occupation by searching their future occupation, and discover the meta-ego through self-examination., which in turn, help them gain confidence and feel a sense of accomplishment.

• Journal of Korean Society of Neurocognitive Rehabilitation
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• v.10 no.2
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• pp.35-44
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• 2018

This study was conducted to explore the effects of semi-structured $DIRFloortime^{(R)}$ treatment on the enhancement of language comprehension and information processing of children with high-performance autistic spectrum disabilities. We measured the general characteristics of the test subjects, which are level of autism, total intelligence, language comprehension and information processing indicators. The intervention method used was a semi-structured $DIRFloortime^{(R)}$ therapy using board game intervention program after revising and supplementing the expert content validity. A pre/post-test for a group was designed as a similar experiment and the pre/post test was initiated with the t certification at .05 of significance level. After initiating the program, the post test has shown that the language comprehension indicators showed statistically significant levels of difference (p<.001) and the information processing indicator also had a statistically significant effect (p<.001). There was a statistically significant difference (p<.001) in the level of verbal comprehension index after the program implementation, and statistically significant differences in the information processing index (p<.001). The semi-structured $DIRFloortime^{(R)}$ treatment using boardgames for enhancing the language comprehension and information processing indicators of children with high performance autistic spectrum disorder had a significant effect.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.10a
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• pp.233-235
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• 2022

The purpose of this paper is to develop a platform using NFT, which serves as a certificate for the service of Web 3.0, which is being decentralized and utilized in connection with blockchain technology. The NFT platform is a platform that can smoothly use platforms that existed only overseas in Korea, and develops a platform using Klaytn to increase accessibility by solving problems such as ETH fees and transmission speeds. Through the NFT platform using Klaytn, domestic users can expect high utilization through easier accessibility and can be used for metaverse, games, etc.

• Journal of International Area Studies (JIAS)
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• v.22 no.2
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• pp.81-110
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• 2018

In this paper, we examined the regional economic integration, the trade negotiation strategy and bargaining power of the European Union through the logical structure of the three - dimensional game theory. In the three - dimensional game theory, the negotiator emphasized that the negotiation strategy of the triple side existed while simultaneously operating the game standing on the boundary of each side game, constrained from each direction or occasionally using the constraint as an opportunity. The study of three-dimensional game theory is aimed at organizing the process of coordinating opinions and meditating interests at the international level, regional level and member level by the regional union as a subject of negotiation. This study would compare and analyze the recently concluded EU-Japan EPA (Economic Partnership Agreement) negotiation process with the case of the EU FTA, and summarize the logic of the three-dimensional game theory applicable to the FTA of the regional economic partnership. Furthermore, the study would illustrate the strategies of the regional economic cooperatives to respond to negotiations. The area of trade policy at the EU level has already been completed by the exclusive power of the Union on areas where it is difficult to politicize with technical features. Moreover, the fact that the policy process at the Union level has not been revealed as a political issue, and that the public opinion process is a double-step approach. In conclusion, the EU's trade policy process constitutes a complicated and sophisticated process with the allocation of authority by various central organizations. The mechanism of negotiation is paradoxically simplified because of the common policy decision process and the structural characteristics of the trade zone, and the bargaining power at the community level is enhanced. As a result, the European Commission would function as a very strong negotiator in bilateral trade negotiations at the international level.