The H.261 Video Coding Standard
In recent years, there have been significant developments in videoconferencing and audiovisual services. First, data rates in digital telecommunication services have been constantly improving. For example, integrated services digital networks (ISDNs) may provide switched transmission services at data rates close to 2 Mbits/s. Second, the latest technology for the coding of video signals allows videoconferencing signals to be compressed down to 64 kbits/s, the equivalent of a single telephone voice channel.
KeywordsMotion Estimation Video Quality Loop Filter Video Decoder Variable Length Code
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