네트워크 카메라와 스트리밍 기술을 이용한 메신저기반의 화상회의시스템 개발에 관한 연구

Abstract

Video conferencing system is used usefully for quick business discussion and decision-making in company. According to develope information and telecommunication technology, the early video conferencing system of conference room type has been developed to video conferencing system based on instant messenger that is operating on PC. Video conferencing system based on instant messenger uses PC camera and Peer-to-Peer networking. Therefore it cannot support HD(High Definition) video quality. In case of multi-attendees, discontinuance and distortion of video are generated because of user PC and network overload. In order to overcome existing video conferencing system's problem, this thesis suggests a new video conferencing system using network camera and streaming technology. For constructing a new system, this thesis describes system composition, conference procedure, sequence diagram, main program, graphical user interfaces in details. The new system can provide HD video quality. It reduces user PC and network overload, and supports high quality of video in case of multi-attendees. And it can monitor interesting sites during conferencing. This thesis clarified the new video conferencing system using network camera and streaming technology provides better quality of video than existing video conferencing system through comparative performance test.