• KIPS Transactions on Software and Data Engineering
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• v.10 no.1
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• pp.29-34
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• 2021

The real-time video education is used as an effective method of operating classes that replaces face-to-face education of instructors and learners in remote areas. However, the existing video call and video conferences system is mainly used, and this is effective in linguistic education because it focuses on lecture through video, but it is not utilized in other education. In this paper, we propose a design model of real-time video system that can improve the effectiveness of science curriculum and mathematics education by providing the functions that can be utilized during class by improving limitations of image - oriented image education.

• The Journal of the Korea Contents Association
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• v.12 no.2
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• pp.173-181
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• 2012

The education method using visual materials such as video contents is getting more attentions in the education field. This study researched how undergraduate students perceive the objective of education method utilizing video contents, what types of education using video contents they put a great importance on, and what kinds of correlations exist between the video contents method and the ability of discussing about a topic in essay-type examinations. With in-depth interviews with undergraduate students, the results showed that video contents was perceived as one of the attractive teaching methods increasing students' comprehension of lectures. Also, students evaluated that the video contents method could provide an opportunity to be exposed to the vivid scene of the journalistic environment and make them learn practical cases at second hand. Moreover, they perceived the video contents method as a very effective learning method improving their ability to discuss about a topic in essay-type exams.

• Journal of Digital Contents Society
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• v.10 no.1
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• pp.97-105
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• 2009

For effective remote education using multimedia, it is necessary to develop efficient management techniques of video information. This requires real-time processing of video information which should be managed and retrieved in a compressed forms. The main technology of compressing video is currently MPEG-2. This implies that it is very important to manage and retrieve video compressed in MPEG-2, and then to process the video in real-time for the remote education environment using multimedia. This paper is to develop the management system of video information which is one of the most critical requirements in remote education systems for managing and retrieving MPEG-2 video.

• Journal of information and communication convergence engineering
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• v.21 no.4
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• pp.287-293
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• 2023

With the rapid development of domestic and international over-the-top markets, a large amount of video content is being created. As the volume of video content increases, consumers tend to increasingly check data concerning the videos before watching them. To address this demand, video summaries in the form of plot descriptions, thumbnails, posters, and other formats are provided to consumers. This study proposes an approach that automatically generates posters to effectively convey video content while reducing the cost of video summarization. In the automatic generation of posters, face recognition and clustering are used to gather and classify character data, and keyframes from the video are extracted to learn the overall atmosphere of the video. This study used the facial data of the characters and keyframes as training data and employed technologies such as DreamBooth, a text-to-image generation model, to automatically generate video posters. This process significantly reduces the time and cost of video-poster production.

• Journal of Korea Multimedia Society
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• v.23 no.6
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• pp.792-801
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• 2020

Today, the media environment has changed dramatically with the development of Internet transmission technology, computer performance, and various media production technologies. In particular, video content is widely used every day through mobile device or computer connected to the Internet. In addition, the ability to produce video content today is more important than ever, as the use of video content is also increasing in the area of information delivery and communication over the Internet. In this study, it was developed a liberal education curriculum in universities for the production of video content. The developed curriculum was composed of a combination of an online curriculum for theory and an offline curriculum for practicum. In the online curriculum, a 54 DOOR contents were developed to allow students to learn the theoretical knowledge and basic making techniques related to the production of video content. In an offline 15-week practicum curriculum, it covered the practical training contents of video content production that should be acquired every week. This developed liberal education curriculum aims to give non-major students in universities the opportunity to learn the technology of producing video content and to foster the ability to communicate in the media environment by using the video content produced.

• International Journal of Advanced Culture Technology
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• v.12 no.1
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• pp.11-15
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• 2024

Video is already playing an educational role. Now, it is necessary to discuss the issue of the effectiveness of video education in schools. Facilitation is a great means of maximizing learning effects beyond the creativity and autonomy of video production. To prove this, a research study was conducted, and the results showed that facilitation had a significant effect on the learning effect. Based on this result, various policy suggestions such as the introduction of facilitation in the educational field are made.

• Journal of Korean language education
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• v.29 no.2
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• pp.181-208
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• 2018

The aim of this study is to design a Real-time video Korean curriculum. Curriculum using real-time video, which is a variant of distance learning, teaches Korean to students studying in distant places through real-time video communication program. This is expected to supplement the lack of interaction in existing video classes and enable online simultaneous interaction, while increasing learning opportunities for Korean language students living in distance places. To find out the needs of the subjects for the curriculum design, this study conducted a one-on-one interview with 9 female married immigrants who are enrolled in the Cyber University which is opening a curriculum later. According to the survey, the students answered that they have a high intention of attending classes if the lack of interaction in existing distance classes are supplemented. Therefore, we could confirm the demand of a curriculum consisting of an overall real-time video education and multilateral individual connection. Also, we found out that there is a demand in performance rather than comprehension and a high demand for detailed feedback from the teacher. The result shows that the curriculum needs to establish performance-oriented contents to progress to an advanced level Korean Language, and include a study plain comprising of real-time interaction.

• Journal of Broadcast Engineering
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• v.27 no.5
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• pp.773-793
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• 2022

The moving picture experts group (MPEG) immersive video (MIV) coding standard has been established to support six degrees of freedom (6DoF) in virtual reality (VR) by transmitting high-quality multiple immersive videos. The MIV exploits two approaches considering tradeoff between bandwidth and computational complexity: 1) eliminating correlation between multi-view videos or 2) selecting representative videos. This paper presents performance analysis on intermediate synthesized views on source view positions and synthesized pose traces using high-efficiency video coding (HEVC) and versatile video coding (VVC) for above-mentioned two approaches.

• 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.

• Korean Parent-Child Health Journal
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• v.19 no.1
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• pp.17-24
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• 2016

Purpose: This study examined the level of students' anxiety depending on the injection type, education methods, and the students' characteristics. Methods: 209 first year nursing students were randomly assigned to each group by three factors -injection methods, video watching, and number of practice. Injection methods had two levels (IV and IM). Video watching also had also two levels (video watching and non-watching group). And the number of practice had 4 levels according to number of practice (2, 4, 6, and 8 times). The video watching group was watching 30 minutes video before manikin practice. After 5 to 15 minutes of manikin practice, the sufficiency of practice and the level of anxiety were measured. The data were analyzed by t-test and one way ANOVA. Results: The anxiety of the IV practice was higher than that of IM. The students who have experiences of working at hospital or the similar institution were lower in anxiety. The higher self-confident in sufficiency of practice lowered the students' anxiety. But watching video and the number of practices had no effects on the level of anxiety. Conclusion: To effectively lower the anxiety of nursing students in the nursing practice education, lecture methods and education tools are needed to develop.