Research Of Encoding/Decoding And Video Retrieval On Streaming Media For 3G Network

The third generation (3G) networks for the transmission of streaming media emerged as a new network environment. On another aspect, the 3G networks is promoting the development of information technology. In recent years, whether academic or industrial sector in the streaming media for the 3G networks has had extensive and in-depth study.Streaming media platform based on the 3G networks would provide video-on-demand and video broadcast services for video conferencing, video surveillance and entertainment. As data transmission based on the 3G networks, network bandwidth is very difficult to guarantee and often received Many Interferences which came from noise and the same channel and so on. Streaming media is the continuous-flow media which is in the use of transmission Technology. While streaming media is dwonlaoding , it is broadcasting. The delay before starting is greatly reduced on the client. And Application flow is not usually kept receiving data, which greatly reduce the need for storage space. H.264 is a compression standard which is set up by international standard organizations, joint JVT and MPEG. It has a high compression ratio and high image quality features, so it is very suitable for the transmission of streaming media for the 3G networks.This paper researches applications on streaming media for the 3G networks and designs platform for streaming media comprehensively. We design the main control module, the sub control module, the encoding/decoding module and the video retrieval module. This paper focuses on the encoding/decoding module and the video retrieval module in system management module. From the above two areas, on the one hand proposed an encoding and decoding Process which is suitable for transmission for 3G networks and realized in the laboratory environment; on the other hand designed a video retrieval system based on key word search, which can retrieve the needed video documents in the system.Our laboratory simulated the basic characteristics of the 3G network. And we ran streaming media platform in the operating environment which was simulated. We realized the basic functions of the design. For the experimental platform, we still need to make further improvements and experiments.