• The Journal of Society for e-Business Studies
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• v.9 no.4
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• pp.137-155
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• 2004

A video-conference system is being utilized in web based application services in various fields due to the widespread use of Internet and the progress of computer technologies. This system should use the public IP address for sharing file and white board and it is difficult to manage the internal network users of the firewall and non-public IP address users. In this paper, we propose an Application Level Gateway which transforms non-public IP address into public IP address. This mechanism is for the internal network users of the firewall or non-public IP address users over the Internet. We also propose a Control Daemon which manages video and audio media dynamically according to network bandwidth. This mechanism can start and terminate a video conference and manage the process of the video conference.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.343-345
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• 2005

유비쿼터스 환경에서의 원격화상회의 시스템은 그 시스템을 이용하는 사용자에 따라서 시스템의 실행환경이나 사용자의 디바이스 환경 등 많은 변화 요소를 가지고 있다. 본 논문에서는, 사용자가 가질 수 있는 서로 다른 환경 등에 스스로 적응하여 효과적이고 최적화된 원격화상회의를 진행 할 수 있는 시스템 구조를 제안하며, 이를 이종의 플랫폼에서 구동할 수 있도록 각각의 플랫폼 환경에 최적화된 적응 구조를 동적으로 재구성할 수 있는 방법과 응용프로그램을 제안한다. 또한, 제안시스템의 프로토타입을 실제 구현하여 그 유효성을 확인하였다.

• The Transactions of the Korea Information Processing Society
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• v.6 no.12
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• pp.3477-3489
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• 1999

Our study is focused on a multi-agent system which provides the efficient teleconferencing facility with the help of the intelligent agents who allow the participants to minimize the effort to call meeting. Our system has multi-agent architecture and use the KQML to communicate among agents. Communicating through the KQML allows us to overcome the heterogeneity when we add new agents into the system. In this paper, we propose a multi-agent structure for the teleconferencing system based on the web and describe in detail the now or the KQML messages among agents.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.620-622
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• 2013

Real-time Video communication technology using a Web browser today is on the rise. Video communication system The existing A method of providing an Video communication via a program for a specific server on the service provider, respectively. By using the server of the company that provides an Video communication solutions, were limited by using its own network that you can use to build a separate server for performing Video communication another, using specific software and user groups it was a mechanism for using the Video communication environment. In addition, must be installed separately and ActiveX, plug-in and, use of the service has become possible. Therefore, in this paper, utilizing the real-time Video communication Web-based technology without installing the plug-in, real-time through a Web browser or Active-X of another using a script HTML5 and the Web on the Internet Using HTTP in an environment in the Internet is possible, I've implemented a system capable of Video communication.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.5
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• pp.1113-1118
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• 2013

Real-time video communication technology of hybrid Web-based using JavaScript and HTML5 today is on the rise. Therefore, in this paper, we have studied the real-time videoo communication technology using a Web browser that supports HTML5. It has been designed and implemented a system based on HTML5 and JavaScript, allowing for video communication of real-time, such as you would using the HTTP/WebSockets and RTC API through the Web servers in the Web browser between different each other, utilizing a Web browser was. It is available in a usable terminal equipment of a Web browser PC or notebook, smart pad, such as a smart phone, which is available without installation, such as a plug-in register or another. In all environments the network is connected, it is available in all terminals use the Web browser is enabled, which will be utilized in the field of video communication in a restricted environment.

• Journal of the Institute of Convergence Signal Processing
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• v.1 no.1
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• pp.74-81
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• 2000

In this paper we have developed an image security system based on Internet Web in order to overcome the problem of existing systems that use the dedicated network. The developed system resolves the safety problem of the centralized control model by adapting the distributed control model based on Web, and has the functions of remote control and automatic monitoring for grouped multiple sites on remote Web browser. And the system can operate various computers or operating system because it' s operating software was designed by the concepts of Java Virtual Machine and Virtual Instrument. Also, our system has not need of additional cost for network construction by using Internet and can greatly improve the managemental efficiency of system because the maintenance and publishing of software updates can be performed through Web Server.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10a
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• pp.656-658
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• 1998

실시간 인터넷 화상회의 시스템을 위한 H.263 동화상 부호화 소프트웨어의 처리속도를 개선하는 기법을 개발하였다. 화상회의 영상의 특성과 H.263 프로토콜의 구조를 분석하여 데이터의 압축률이나 화질에 미치는 영향을 최소화하면서 처리시간을 크게 단축하는 기법을 개발하였다. 처리 속도의 개선을 위해서 움직임 조기 검출 기법을 개발, 적용하므로서 압축률과 화질에 미치는 영향을 최소화하면서 계산량을 크게 줄이도록 하였다.

• Electrical & Electronic Materials
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• v.4 no.3
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• pp.229-238
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• 1991

본 논문에서는 영상센서를 이용하여 유기절연물질내의 트리 열화현상을 측정할 수 있는 시스템에 관하여 논하였다. 기존의 육안관찰법으로서는 관측하는 것이 매우 어려웠던 트리형상의 변화를 화상처리 기술을 이용하므로서 트리발생 직후부터 관측할 수 있게 되었다. 실험결과, 화상처리장치는 최초로 발생된 트리에서 부터 그 진전상황을 즉각적으로 기록할 수가 있었으며 트리의 신장도, 열화면적 및 연속 화상처리 측면에서 트리의 진전특성을 고찰하였다.

• Archives of design research
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• v.14 no.4
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• pp.5-14
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• 2001

Among Human Sensibility-oriented products a gap between the images that designers try to express through that product and users emotional evaluation becomes an issue. The data on the correlation between image words used for design evaluation and images used in the design process are especially significant. This study based on these correlations suggests a Fuzzy retrieval system supporting styling design with images and image words. In the system, the relational data are demonstrated by Fuzzy thesaurus as correlation coefficient from the degree of similarity among image words. And the degree of similarity is produced based on image evaluation. Image retrieval is conducted by the algorithm of Fuzzy thesaurus development, 1) among image words, 2) images to image words, 3) image words to images and 4) among images: 4 different modes are provided as retrieval modes. Also transfer between modes is carried by direct operating interface, therefore divergent thinking and convergent thinking is supported well. The system consists of operation for the gap and the measurement unit of emotional evaluation, and visualization units. Under unified interface environments are set in order for consistency of the operation.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.35-37
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• 2022

Online video conferencing systems such as Zoom and Discord are mainly used for non-face-to-face work due to their good accessibility and lack restriction of space. However, most online video conferencing systems are difficult to interact in both directions, and problems such as difficulty in communication and lack of immersion are emerging in participants who use them. On the other hand, Metaverse, which has attracted attention with the development of spatial computing, enables smooth interaction like the real world in the three-dimensional virtual world by utilizing hearing, visual, and touch information. In this paper, we propose a method of utilizing the metaverse platform to improve the problem of lack of immersion in the existing online video conferencing system. Through the proposal method, platform users can share and check each other's work screens in a virtual space and exchange various data. In order to improve participants' of immersion, the environment and improvement plan of the metaverse platform were constructed and compared with the existing online video conferencing platform.