• Journal of information and communication convergence engineering
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• v.20 no.3
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• pp.189-194
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• 2022

As non-face-to-face activities have become commonplace, online video conferencing platforms have become popular collaboration tools. However, existing video conferencing platforms have a structure in which one side unilaterally exchanges information, potentially increase the fatigue of meeting participants. In this study, we designed a video conferencing platform utilizing virtual reality (VR), a metaverse technology, to enable various interactions. A virtual conferencing space and realistic VR video conferencing content authoring tool support system were designed using Meta's Oculus Quest 2 hardware, the Unity engine, and 3D Max software. With the Photon software development kit, voice recognition was designed to perform automatic text translation with the Watson application programming interface, allowing the online video conferencing participants to communicate smoothly even if using different languages. It is expected that the proposed video conferencing platform will enable conference participants to interact and improve their work efficiency.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.735-736
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• 2023

높은 몰입감과 실재감을 제공하는 XR 기술이 고령자들의 인지능력, 주의력, 시각적 기억력에 긍정적인 영향을 주는 것으로 나타나며 노인의 건강과 삶의 질을 향상시키기 위한 기술로 많은 관심을 받고 있다. 본 연구는 인지기능 향상을 위한 XR 융합훈련프로그램에 사용될 콘텐츠 저작 시 젊은이와 노령층의 디지털 격차, 선호도의 차이, 노화에 따른 신체·인지능력의 저하 등 고려해야 할 이슈를 소개하고, 문제를 해소할 수 있는 XR 콘텐츠 저작도구를 제안한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2000.10a
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• pp.426-432
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• 2000

This paper presents methods to design an integrated system for supporting both multimedia contents creations and its presentation in a windows system. Especially, it describes methods for designing an integrated editor that can be used to crate and edit various media data including continuous media such as audio and video. And it also proposes a system model for systematically integrating multimedia creating tool with multimedia presentation system where the heeling and scenario-based presentation methods are included in the propose system for supporting effective multimedia presentation through a network Finally, we describe a threads processing technique based on event monitoring to satisfy effectively needs for presentation control, synchronization control, and user's input control during a multimedia presentation.

• Journal of KIISE:Databases
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• v.27 no.2
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• pp.185-198
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• 2000

Recently the technological advance in the hardware dealing with multimedia data as well as the explosive increase of the volume of multimedia data bring about new interest in the use of multimedia presentations in many application domains. To use multimedia presentations efficiently, the integration of multimedia presentations into DBMS is necessary. This paper presents a multimedia presentatation query language based on contents and query processing techniques. Presently, multimedia presentation authoring tools denote a multimedia presentation using a presentation graph which is a DAG. A Node in the graph is a same type of media stream and edges denote a play-out order and a synchronization way among nodes. The contents of presentations graphs are the information of each stream, the sequential order of the information inside each stream and the play-out order among the streams. GCalculus/S is a calculus-based query language and can deal with the contents of a presentation graph and physical characteristics of multimedia data. It expresses the sequential order of information inside each stream and the play-out order of streams of a presentation graph using temporal operators Next, Connected and Until. O-Algebra, which is object algebra, is extended to process GCalculus/S queries.

• The Journal of the Korea Contents Association
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• v.8 no.5
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• pp.276-286
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• 2008

In this paper, we introduce an adaptive e-Learning system for engineering mathematics which is based on computer algebra system (Mathematica) and on-line authoring environment. The system provides an assessment tool for individual diagnosis using Bayesian inference network. Using this system, an instructor can easily develop mathematical web contents via web interface. Examples of such content development are illustrated in the area of linear algebra, differential equation and discrete mathematics. The diagnostic module traces a student's knowledge level based on statistical inference using the conditional probability and Bayesian updating algorithm via Netica. As part of formative evaluation, we brought this system into real university settings and analyzed students' feedback using survey.

• Journal of Korea Multimedia Society
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• v.14 no.10
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• pp.1348-1364
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• 2011

As the existing edutainment contents for children are mostly comprised of educational tools which unilaterally induce educatees to passively respond to them, the content-creating methodologies in terms of which active and voluntary learning is made possible is urgently needed. In this paper, we present the implementation of the tangible 'electronic dice' interface as an interactive tool for behavior-based edutainment contents, and propose a methodology for developing edutainment contents for children by utilizing the recognition technique of hand movement based on depth-image information. Also proposed in the paper are an authoring and management tool of learning quizzes that allows educators to set up and manage their learning courseware, and a log analysis system of learning achievement for real-time monitoring of educational progress. The behavior-based tangible interface and edutainment contents that we propose provide the easy-to-operate interaction with a real object, which augments educatees' interest in learning, thus leading to their active and voluntary attitude toward learning. Furthermore, The authoring and management tool and log analysis system allow us to construct learning programs by children's achievement level and to monitor in real-time the learning development of children educatees by understanding the situation and behavior of their learning development from the analytic results obtained by observing the processes of educatees' solving problems for themselves, and utilizing them for evaluation materials for lesson plans.

• Journal of The Korean Association of Information Education
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• v.17 no.2
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• pp.135-146
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• 2013

Smart Learning has been introduced in the educational field recently and it has been used in various ways to improve the quality of education. This research is focused on smart learning contents development for settlement in the educational field. It has carried forward studying in smart learning contents development using storyline, which is a kind of application authoring tool. We analyzed previous studies related to smart learning and presented the characteristics of storyline and the process of content development. Furthermore, we developed the content of digit sorting in Information Life for 6th grade elementary students and applied it to the field to evaluate the educational effectiveness. Through experimental results, the mean difference between traditional activities instruction and instruction using smart learning content was not significant. Nevertheless it has been found the immediate feedback and repeating of activities using smart learning has had positive impacts for understanding, satisfaction and learning interest.

• The Journal of Korean Association of Computer Education
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• v.6 no.3
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• pp.99-108
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• 2003

This paper indicates limitations of the existing VOD(Video on Demand)-based on-line education systems and presents the design and implementation of Education on Demand (EOD) system as an alternative. EOD system is based on meta information expressed in XML and component technology. Overall system consists of authoring tool. contents server, learning policy system and contents viewer. which are utilized throughout the learning contents life-cycle. EOD system enables automated contents management using meta information exchange methodology that is conformant to the SCORM meta data presentation scheme. In addition, integrated management of interaction and feedback information along with the learning policy system provides customized learning guide for each individual learner. With the development of EOD system, this paper discusses about advanced on-line education system which surpasses existing content-providing-only systems.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2009.11a
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• pp.387-390
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• 2009

최근 한국정보통신기술협회(TTA)에서는 지상파 DMB(Digital Multimedia Broadcasting) ECG(Electronic Content Guide) XML(eXtensible Markup Language) 표준의 제정 및 개정 작업을 완료하였다. 지상파 DMB ECG XML 표준은 종래의 DMB EPG(Electronic Program Guide) 표준에서 제공되었던 서비스를 기능적으로 수용하면서 프로그램내의 특정 세그먼트 단위까지 검색 및 브라우징을 통하여 원하는 콘텐트를 보다 효율적으로 접근, 소비 및 저장이 가능하도록 하는 향상된 서비스를 제공하도록 정의하였다. 또한, 단일 포맷에서 모든 DMB 콘텐트 내용들을 결합하는 DMB AF(ISO/IEC 23000-9:2008; DMB Application Format) 파일 포맷을 포함하고 있다. 한국전자통신연구원에서는 이러한 지상파 DMB ECG XML 표준 및 서비스의 유효성 검증을 위해 메타데이터의 저작 단계에서 전송 및 단말에 이르는 맞춤시청형 방송 시스템을 개발하였다. 이러한 일련의 과정에서 DMB ECG 메타데이터는 맞춤시청형 서비스 제공을 위해 전달되는 핵심 요소로써, 디지털방송 콘텐트에 대한 상세 정보의 기술을 위해 새로운 메타데이터를 생성하거나 기존에 생성된 메타데이터를 재편집하는 과정을 효과적으로 수행하기 위한 메타데이터 저작도구가 필수적으로 필요하다. 본 논문은 사용자 친화적인 DMB ECG 메타데이터 및 DMB AF 저작도구의 개발에 대해 기술한다.

• The Journal of Korean Association of Computer Education
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• v.8 no.5
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• pp.97-108
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• 2005

In this paper, we present our prototype of a web manual creator that is based on MSP technology embedded in webMathematica. This tool gives courseware authors more simple ways to make their own mathematical web contents. We first classified authoring models for creating mathematical content development and proposed an advanced model. The final application called phpMath can generate MSP-driven documents automatically using Mathematica commands typed by users. In other words, phpMath users can make interactive dynamic mathematical web contents even though they do not know anything about web server, HTML, and webMathematica. We illustrated the details of the prototype from the user's perspectives followed by comments on usefulness.