Video encoding for low bandwidth

From Bjoern Hassler's website
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Interesting article here: http://www.diva-portal.org/umu/abstract.xsql?dbid=1808

We show that a codec based on PCA can compress facial video to a bitrate below 5 kbps and still provide high quality. This bitrate can be delivered on a GSM network. We also show the possibility of extending PCA coding to encoding of high definition video.