Study Of Nonlinear-editing Network System And Its Image Coding Theory

Digitalization and networking bring a revolution to TV industry with the development of the computer and communication technology, under which non-linear editing network system is built up. Digital video technology makes great improvement to TV system and network technology combines the traditional, isolated resources with a result of productivity progress and a new work process.This paper discusses the architecture, function module, workflow and unique dual-network structure of the non-linear editing network system in detail. Compression and coding method used in this system is studied. The possibility of the employment of wavelet theory is investigated. According to the requirement of network safety, stability in TV station, a non-linear editing network system is proposed, which safely manages users, program resource, network equipments and disc space assignment. This system has been used in one TV station with good stability and produces both social and economic benefits.The rise of Internet brings not only challenges but also opportunity to TV industry. The non-linear editing network system adopts the broadcast standard, MPEG-2, as the coding format for program sending and storing, and uses MPEG-4, popular on the Internet, as the coding format for browsing and online video displaying, which explores new field for TV industry and adds to the value of the precious audio and video material of TV station.