[ros-users] People Stack/Face Detector

[Dejan Pangercic]

Hi David,
fyio, to even better improve the localization of the face and to
filter out false positives I'd often use face detector in the
combination with the legs detector, e.g.
http://tum-ros-pkg.svn.sourceforge.net/viewvc/tum-ros-pkg/perception/people_detector_node/.
I did not check as of lately but I am pretty sure that Caroline also
has one in the people stack.

cheers, D.

On Sun, Aug 1, 2010 at 6:49 PM, Caroline Pantofaru
<pantofaru at willowgarage.com> wrote:
> Hi David
> Right now the face detector uses the median disparity within the face
> bounding box to check that the face is:
> - less than 8 meters from the camera
> - has a width greater than 10cm
> - has a width less than 50cm
> Those limits are pretty arbitrary, I can expose them as parameters in the
> next release. Please create a ticket and assign it to me so that I don't
> forget.
> You might want to check the disparities coming from your cameras. The limits
> I've set on the face size are very loose, so I'm surprised that you aren't
> getting any acceptable faces.
> -Caroline
> On Sat, Jul 31, 2010 at 7:13 PM, David Lu!! <davidvlu at gmail.com> wrote:
>>
>> Hey all,
>> I'm running the face detector from the newly released people stack. It
>> finds faces well, but none with good depth and size. What qualifies as good
>> depth and size?
>> Thanks,
>> David!!
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>
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-- 
MSc. Dejan Pangercic
PhD Student/Researcher
Intelligent Autonomous Systems Group
Technische Universität München
Telephone: +49 (89) 289-26908
E-Mail: dejan.pangercic at cs.tum.edu
WWW: http://ias.cs.tum.edu/people/pangercic