• 한국멀티미디어학회:학술대회논문집
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• 한국멀티미디어학회 2004년도 춘계학술발표대회논문집
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• pp.709-713
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• 2004

This Paper Presents an Internet-based Java self-learning educational system which consists of a management system named Java Web Player (JWP) and creative multimedia contents fer Java language. The JWP Is a Java application program free from security problems by the Java Web Start technologies that supports an Integrated learning environment including three Important learning Procedures: Java concept learning Process, Programming practice process and assessment process. This JWP enables the learners to achieve efficient and Interesting self-learning since the learning process is designed to enhance the multimedia capabilities on the basis of various educational technologies. On-line voice presentation and its related texts together with moving images are synchronized for efficiently conveying creative contents to learners. Furthermore, a simple and useful compiler is included in the JWP fur providing user-friendly language practice environment enabling such as coding, editing, executing and debugging Java source files on the Web. The assessment process with various items helps the learners not only to increase their academic capability but also to appreciate their current degree of understanding. Finally, simple multiple choices are given suddenly to the learners while they are studying through the JWP and the test results are displayed on the message box. The proposed system can be used for an efficient tool for learning system on the Web.

• 한국멀티미디어학회논문지
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• 제19권8호
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• pp.1479-1486
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• 2016

According to the advancement of display devices, the multi-screen contents display environment is growing to be accepted for the display exhibition area. The objectives of this research are to find communications technology and to design an editor interface of contents delivery system for the larger and adaptive multi-display workspaces. The proposed system can find existence of display devices and get information without any additional tools like marker, and can recognize device layout with only web-cam and image processing technology. The multi-display contents delivery system is composed of devices with three roles; display device, editor device, and fixed server. The editor device which has the role of main control uses UPnP technology to find existence and receive information of display devices. extract appointed color in captured picture using a tracking library to recognize the physical layout of display devices. After the device information and physical layout of display devices are connected, the content delivery system allows the display contents to be sent to the corresponding display devices through WebSocket technology. Also the experimental results show the possibility of our device connection and layout recognition techniques can be utilized for the large spaced and adaptive multi-display applications.

• 한국멀티미디어학회:학술대회논문집
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• 한국멀티미디어학회 2001년도 춘계학술발표논문집
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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.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2008년도 하계종합학술대회
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• pp.937-938
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• 2008

Spotlight system has been made use of art works on stage such as musical and performance etc. Currently, spotlight is controlled manually through the planned path in advance. Therefore, automatic control system is necessary for manipulating spotlight on stage. In this paper, we propose the system that detects to track the multiple objects and classifies those objects, also selects an object of those ones. The proposed method can be applied to the interactive stage spotlighting system(ISSS).

• 한국컴퓨터정보학회논문지
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• 제4권1호
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• pp.15-20
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• 1999

본 논문에서는 CBM(Computer Based Multimedia) 기반의 원격교육을 위해 요구되는 몇 가지 필요사항을 제시한다. CBM 기반의 원격교육은 초고속 통신망을 이용한 가상 공간상에서 실시간 상호작용 응용인 원격 가정학습 시스템을 멀티미디어 기술과 접목한 멀티미디어 원격교육의 한 형태이다. 본 논문에서 제시되는 요구사항들은 멀티미디어 통신을 위한 국제 표준인 ITU (International Telecommunication Union)의 표준화 규격을 따르고 있으며, 제시하는 통합 홈 정보서비스의 구조는 IEEE 1394시리얼 통신과 POF(Plastic Optical Fiber) 가정용 백본을 기반으로 하고 있다.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2007년도 한국컴퓨터종합학술대회논문집 Vol.34 No.1 (C)
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• pp.98-103
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• 2007

본 논문에서는 기존 인터넷이 되는 곳에서만 할 수 있었던 도서 검색과 예약.대출을 모바일로 언제 어디서나 이용할 수 있고, 사용자의 편의를 보다 극대화 시키고 유동적, 실용적인 측면에서 연구발전 시켰다.

• International journal of advanced smart convergence
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• 제2권1호
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• pp.24-26
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• 2013

In the process of a mobile network evolution to the All-IP, it is inevitable to experience a transient period embracing both circuit and packet based data traffics. At the stage of those hybrid networks, it is important to build them in an efficient manner in terms of resource utilization which is closely related to the overall system operation cost. Especially, the multimedia telephony is one of the essential services in the advanced packet based mobile networks. In this paper an effective method of system operation is proposed for building up the multimedia telephony service while the legacy network co-exists. The proposed solution is based on the careful investigation of the usage pattern of the multimedia services in the evolving networks. This method is also expected to be a useful guideline for the network resource planning.

• 한국통신학회논문지
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• 제25권9A호
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• pp.1340-1347
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• 2000

The international mobile telecommunication-2000(IMT-2000) system can support not only the non-realtime multimedia traffic such as data such as data image but also the realtime multimedia traffic such as voice, video. In the paper we propose multicode allocation and handoff schemes for efficient transmission of realtime and non-realtime data in cdma2000. In those schemes the bandwidth of target cell is reserved based on moving direction of mobiles to support QoS of realtime multimedia data and the reserved bandwidths is used by the non-realtime mobiles of the target cell until the mobiles want to perform hadoff. Our framework is able to guarantee QoS continuity of realtime multimedia data and carries the maximum number of subscriber. System performance is evaluated and compared with conventional scheme considering transmission delay channel utilization and blocking probability by computer simulation.

• 한국정보처리학회논문지
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• 제3권3호
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• pp.608-616
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• 1996

본 논문에서는 영상회의를 위한 멀티미디어 하드웨어 구조를 입 출력 중심으로 제안 하고, 구조를 대기모델로 표현하여 시스템의 동작을 분석하였으며, 설계와구현 을 통해 분석결과를 고찰하였다. 영상회의시에 발생되는 멀티미디어 데이타의 병목 현상 과 비디오 데이타의 크기, 프레임 수, 화자의 수 및 압축율의 변화를 모의실험하여 가능한 영상회의 수준과 문제점을 분석하였다. 또 분석된 내용의 요구를 .근사적으로 반영하는 시스팀을 구현하고 시험하여 멀티미디어 시스팀 입축력 설계시에 고려해야 할 사항들을 기술하였다.

• 한국정보통신학회논문지
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• 제8권5호
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• pp.1035-1041
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• 2004

오늘날 사용자가 요구하는 데이터 타입은 주로 멀티미디어 데이터 타입들이다. 이들 멀티미디어데이터 타입의 특성은 기존의 데이터에 비하여 데이터의 크기가 크다는데 있다. 멀티미디어 데이터는 크기가 크기 때문에 멀티미디어 데이터 탐색 연산시 한번에 여러 데이터를 주기억 장치에 가져올 수 없으며, 이것은 많은 입출력 발생과 멀티미디어 데이터 시스템의 성능을 저하시키는 요인이 된다. 그러므로 본 논문에서는 보다 신속한 멀티미디어 데이터 접근을 이루기 위해 인덱스 방법에 관해 살펴보며, 이 기술을 이용하여 멀티미디어 데이터 접근을 많이 요구하는 응용프로그램에 적절하게 대처할 수 있으며, 사용자는 자연어를 사용하여 검색을 수행할 수 있다. 뿐만 아니라 정확한 매칭을 요구하는 키워드 매칭 인덱스 기법보다 자연어를 이용함으로써 사용자의 편리성과 신속한 결과 얻을 수 있도록 성능을 향상 시켰다.