Re: Face size

[Paul Over <over@nist.gov>]

Huiping Li wrote:

> I saw in the website that the face required to be detected for the
> evaluation  is at least a quarter of frame width and height.  This is a
> really big face. I browse some video clips and did not  find one clip
> contains such a big face. maybe we can change it to something like 30x30
> pixels ?
> 

Hi,

It may be the minimum size should be smaller. Some guess as to the expected
frequency of occurrence in the feature test set is useful. (It would of
course not be appropriate to study the feature extraction test set. I hope
everyone has segregated that already). I'd be interested in  hearing input 
from others who plan to do the feature extraction task.

One thing to keep in mind is that the shots will be evaluated by a human
who is given the feature definition as a guide. So the definition must
be in terms any college-educated adult can understand. The judges will
not be counting pixels.

- Paul

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Paul Over - Retrieval Group
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