| 摘要(英) |
The purpose of this study is to design a network camera system to be used in securing user’s environment and safety. The designed system possesses some important characteristics, such as real time, high accuracy, automatic, networking, and digitization. Moreover, the system is simply composed of network camera and personal computer. The intention of this research is to utilize the network camera as a monitoring device to expand the scope of traditional monitor.
Until recently, video security and surveillance were accomplished using Closed Circuit Television or CCTV which included analog cameras, coaxial cable and video tape recorders. Video security and surveillance started entering the digital age with the advent of CCD sensors which digitized image capture in the camera. However, transmission was still analog via coax to analog VCR’’s.
Network camera is a stand-alone device which allows a user to view live and full motion video from anywhere on a computer network. In addition, it can simply allow user to use standard web-browser even over the internet. In general, the entire system has now been digitized with the introduction of network cameras incorporating on board processors and web server software. These network cameras can be connected directly to existing IP networks to eliminate the need of separate and expensive coaxial cable networks. Images can be viewed through the cameras and managed from anywhere via a web browser. With the adding of hard disk on the network, videos can be recorded.
The main theme of this research is to discuss how the video streaming works under internet environment and consider the remote side to issue alarm message in real time. We have implemented the proposed system practically and the implemented system works as expected. |
| 參考文獻 |
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[14]T. Wiegand, G. J. Sullivan, G. Bjøntegaard, and A. Luthra, “Overview of the H.264/AVC video coding standard, ”IEEE Transactions on Circuits and Systems for Video Technology, vol. 13, no. 7, pp. 560-576, July 2003. |
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