[XviD-devel] Global Motion Compensation

[Marco Al]

Christoph Lampert wrote:
> On Fri, 25 Oct 2002, Radek 'sysKin' Czyz wrote:
>> 
>> I'll tell you something about the results found: very good. I'm pretty
>> sure that the precision is +/- one pixel, which is exactly what we
>> need to follow the procedure with gradient-descent approach (I also
>> have some ideas about this part).
> 
> Can you explain how you get global motion from local vectors?
> Just calculating the average of all MVs will not be robust against locally
> moving objects.

Least median of squares seems to be the most popular method.

Marco