Technology that minimises video quality degradation during video relays has been developed by Fujitsu Laboratories.
The new technology has been adopted as a ‘Recommended Practice’ of the Society of Motion Picture & Television Engineers (SMPTE), an international professional association establishing standards in motion imaging.
The adoption of video transmission systems that adhere to this recommended practice further improve the quality of video content.
Conventionally, to broadcast news reports, sports and other events, weather forecasts and other on-site relays, video is transmitted across multiple relay points. Every time video signal passes through the video encoders installed at each of the relay points, slight degradation occurs in the colour component of the image. The accumulation of this degradation has been known to lead to visible colour blurring.
The new technology, which is compatible with existing equipment, minimises the occurrence of colour blurring.
During video relays of footage such as news reports, sporting events and other kinds of events, and weather forecasts, communications satellites and networks such as land-based wireless networks and the Internet are generally employed.
Because of the high-frequency in which such video relays are repeatedly reused for different programs and media, there is a need for high-quality video to be transmitted at a relatively low-rate of around 10MB/sec.
Fujitsu
