[LINK] FW: NextG Wireless Stays Up As NBN Fibre Broadband Crashes

Tom Worthington tom.worthington at tomw.net.au
Sat Feb 12 10:59:15 AEDT 2011

Jan Whitaker wrote:
> ... Tom W got this right. ...

To save time, just tell me when I am wrong. ;-)

> When you have low bandwidth video and lots of 
> movement, the compression algorithm has to work harder ...

There has been work on allocating more of the available bandwidth to 
video encoding of human faces and foreground objects. The background is 
then allowed to blur. This might actually make the video look better 
than one at higher bandwidth, as it would make the person stand out more 
from the background. But I don't know if this has made its way into real 

* "Perceptually Optimised Video Compression": 

* Differential video coding of face and gesture events: 

Tom Worthington FACS CP HLM, TomW Communications Pty Ltd. t: 0419496150
PO Box 13, Belconnen ACT 2617, Australia  http://www.tomw.net.au
Adjunct Senior Lecturer, School of Computer Science, The
Australian National University http://cs.anu.edu.au/courses/COMP7310/
Visiting Scientist, CSIRO ICT Centre: http://bit.ly/csiro_ict_canberra

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