Scalable Video Coding Could Finally Mean Disruption-Free HDTV
In HDTV, increased resolution and picture clarity brings with it an increased volume of data so the tiniest disruptions could mean a distortion in the picture or a loss in signal entirely. An extension of the H.264/AVC format called SVC (scalable video coding) claims to fix that. Protecting data packets so they are not at risk during transmission poses a serious problem for developers of video coding techniques. Researchers at the Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut, HHI in Berlin are therefore working to improve standardized video coding techniques such as the H.264/AVC format, which is used by the YouTube video portal and Apple's QuickTime player, for example. If an Internet node is overloaded, for instance, data packets are randomly discarded during transmission. This causes a jerky picture. Read More...
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