• Journal of Broadcast Engineering
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• v.25 no.7
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• pp.1073-1080
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• 2020

360-degree video streaming technologies have been widely developed to provide immersive virtual reality (VR) experiences. However, high computational power and bandwidth are required to transmit and render high-quality 360-degree video through a head-mounted display (HMD). One way to overcome this problem is by transmitting high-quality viewport areas. This paper therefore proposes a motion-constrained tile set (MCTS)-based tile extractor for versatile video coding (VVC). The proposed extractor extracts high-quality viewport tiles, which are simulcasted with low-quality whole video to respond to unexpected movements by the user. The experimental results demonstrate a savings of 24.81% in the bjøntegaard delta rate (BD-rate) saving for the luma peak signal-to-noise ratio (PSNR) compared to the rate obtained using a VVC anchor without tiled streaming.

• Journal of the Korea Society of Computer and Information
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• v.21 no.9
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• pp.177-182
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• 2016

In this paper, we propose the computational thinking education framework which provides three steps of computational thinking process and three kind of activities about computational thinking learning in class. The key idea of this framework is to provide the guidelines of designing activity steps of teaching and learning computational thinking in class using three axles of framework such as problem area, process of learning, and steps of computational thinking process. After designing a framework, we show that sample course of programming education program containing contents of Informatics subject in middle school by implementing our framework. Proposed framework and programming education program in middle school will be the good case study and guide to implement computational thinking concerned education programs in elementary, secondary, and universities.

• Journal of The Korean Association of Information Education
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• v.22 no.5
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• pp.593-603
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• 2018

In this study, we tried to develop STEAM integrated program using virtual reality(VR) equipment and to evaluate the learners' satisfaction in order to cultivate the convergent talent. The pre-test and the post-test were used to compare the mean scores of the assessed candidates and sub-areas. The post-test results were higher than pre-test results. The area with statistically significant mean height was derived as the 'self-concept' area of 'science' which is a sub-area of 'care and communication'.

• The Journal of Korean Association of Computer Education
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• v.9 no.4
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• pp.15-23
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• 2006

The current 7th Curriculum require elementary students to participate in an independent computer education class one time per week through means of discretion activity. However a national standard of this educational process has yet to be established, which has made regional provincial and city offices of education to choose textbooks for this purpose by discretion, that showed difference in quality, in operating education curriculums related to computer education for each classes in school such as continuing the repetitive contents without any rank or system. Also informatization education, which is one of national policies, might develop educational unbalance to young children who are to become the main characters in the future information society, due to excessive emphasis on aspect of using computer, which develops education mainly based on learning functions of applicable software. Therefore, we are proposing a discretion activity education curriculum model for utilization of computer education in elementary school which is showing regional difference based on former studies. This study will be helpful in substantiating of computer education in elementary schools in the future.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.01a
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• pp.145-148
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• 2013

최근 디지털 기술의 고도화로 인하여 테크놀로지가 급속도록 발전하면서 다양한 정보통신 기술과 지식의 융합을 교육 환경에 적용하는 스마트러닝에 대한 관심이 집중되기 시작하였다. 이러한 스마트러닝 환경의 장점들을 통해 학생들이 더욱 효과적으로 교육받을 수 있게 되었다. 학생들은 모바일 기기의 접근성에 대한 인식이 확대되고 모바일 기기와 교육용 프로그램을 활용한 학습이 활성화 되고 있다. 이에 본 연구에서는 스마트기기를 이용한 학습과 평가가 이루어질 수 있는 방안에 대해 알아보고자 한다.

• Proceedings of the Korea Multimedia Society Conference
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• 2001.06a
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• pp.373-377
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• 2001

The telemedicine & distance education system that this paper suggests has been designed on the CTE(Collaborative Telemedicine & distance Education) framework, which is an integrated multimedia environment. This is a CBM-based collaborative telemedicine & distance education type, different from the conventional doctor based general practice, and is an integrated multimedia telemedicine & distance education system capable of many application developments using information super highway. This paper presents the content regarding electronic medical examination chart and data treatment for efficient medical examination and prompt treatment by realizing mutual conversation type remote medical examination system among 3 parties(patient, doctor, pharmacist) on internet base. And, The implementation of this new teaming system should be designed with multimedia application development platform base which is interfaced with computer engineering, computer network technology, CSCW (Computer-Supported Cooperative Work) technology, and education engineering.

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.01a
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• pp.331-334
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• 2011

본 연구의 목적은 국가경쟁력 향상을 위한 세계적인 융합의 흐름을 대비하여 융합 기반인 교육용 로봇을 활용한 창의적 체험활동 프로그램을 설계하는데 있다. 이를 통해 해외의 정보교육 활성화 경향과는 달리 초등학교에서 소외되는 정보교육의 중요성을 부각시키고, 창의성과 인성을 강조하는 창의적 체험활동에서 자연스럽게 활용되기 위함이다. 이에 교육용 로봇을 활용한 융합교육 단계와 프로그램 교수 학습 모형의 설계를 통해 초등학교의 창의적 체험활동에서 활용될 수 있는 프로그램의 토대가 되고자 한다.

• The Journal of Korean Association of Computer Education
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• v.11 no.6
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• pp.95-102
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• 2008

In this paper through the implementation of cooperative learning using SDG, education puzzle actually applies to computer training. SDG(Single Display Groupware) which one computer display have a multi-input devices can work as a collaborative system. Learners are performing together through SDG-based cooperative learning system. SDG cooperative learning with a multi-input device is superior to traditional learning with individual. We have implementation of the puzzle game with this fact. This system through effective education and raising their children's education participation rate will be able to do.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.417-418
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• 2018

오늘날 SW 중심사회에서 컴퓨팅 사고력은 꼭 필요한 핵심역량으로 중요성이 강조되고 있으며, 이에 따라 2015 개정 교육과정에서는 소프트웨어(SW) 교육, 정보 교육을 강화하였다. 온라인 채점 시스템은 학생들이 문제해결 소스코드를 제출하면 이를 평가하고, 적절한 피드백을 제공하므로 자기주도적인 문제해결학습 경험과 프로그래밍 스킬을 향상시키는데 도움을 줄 수 있어 사용이 확대되고 있다. 그러나 채점시스템에 탑재된 문제들은 반구조화된 형태로 되어 있어 학생들이 컴퓨팅 사고단계 중 1단계인 문제공식화(추상화) 단계를 충분히 연습하지 못할 가능성이 있다. 본 논문에서는 이를 보완한 문제해결학습 학습모형을 제안하고, 논의한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2010.07a
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• pp.467-470
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• 2010

본 연구의 목적은 다양한 지식을 습득 및 응용하는 데 한계가 있으며, 급격한 사회의 변화를 수용할 수 없는 기존의 분과학문체제의 문제를 해결하기 위해 미래핵심 성장동력인 로봇을 활용하여 학문융합교육 프로그램을 설계하는데 있다. 이를 통해 초 중등정보통신기술교육(ICT)운영지침의 폐지로 학교에서 사양화 되는 컴퓨터교육의 중요성을 부각시키고, 창의성과 융합을 강조하는 2009년 개정교육과정의 창의적 체험활동에서 자연스럽게 활용되기 위함이다. 이에 교육용 로봇인 피코 크리켓을 활용한 학문융합교육 프로그램 교수 학습 모형의 설계를 통해 다양한 영역 및 교과에 적용하는 기초가 되고자 한다.